The hollow sphere would be the easiest to stop from rotating. The body's moment of inertia and angular velocity combine to form the angular momentum: L=I ω
I = (2/5)MR2 (solid) and I = (2/3)MR2 (hollow) are the moments of inertia for spheres of any diameter that are solid and hollow, respectively (hollow)
A HOLLOW sphere has a higher angular momentum than a solid sphere with the same mass and rotational velocity because (2/3)>(2/5).
If they were the same size and made of the same material, the solid sphere would, intuitively, have a higher angular momentum (and therefore different mass). To illustrate this, consider a hollow sphere with a wall thickness of R. Its volume is thus Vol=4R2R.
Since M=V and is the density, I(hollow)=(8/3)R4R is the moment of inertia.
I(solid) = ρ(8π/15)R^5
hence, I (solid)/I (hollow)
=(1/5)R/∆R
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Many elite runners will train with a speed chute. Explain how wearing a speed chute will change the net forces acting on the runner. What can be said about the force the runner is applying if they run at the same sped with the speed chute as they did without the speed chute.
Elite runners follow a rigid training schedule that gradually increases their capacity for the longer distances. Additionally, they run regularly (often 5 to 6 times per week). On the other hand, the typical runner might run significantly more when the weather is favorable or when they have more time.
What are the elite runners will train with a speed chute?Running speed is influenced by stride cadence and stride length. The number of steps made in a second is referred to as the stride cadence, and the distance covered by each step is referred to as the stride length.
Therefore, running speed can be mathematically described using the product of these variables.
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someone give an answer so i can get the achievement for saying thanks for an answer
Sure I'll do that!
:D
An object falls from aight of 12.6 m. How long does it take to fall and hit the ground below!
Answer:
1.60 s
Explanation:
t² = (2h)/g
t = √(2h)/g
t = [tex]\sqrt{2(12.6m)/9.80 m/s2}[/tex]
t = 1.60 s
In the work and energy lab, a cart was pulled up a ramp and the force and distance were measured.
a. If the force is 4.5 Newtons and the cart travels 1.00 meters, how much work is done by your arm on the cart?
b. If the work done by your arm to the cart is 5.00 Joules, how much potential energy does the cart now have?
c. How much kinetic energy does the cart have when it is allowed to roll back down the ramp just before it hits the stop at the end of the track if the work done is 5.00 Joules? The mass of cart is 0.250 kilograms.
d. What is the velocity of the cart at the bottom of the track just before it hits the stop, if the mass of the cart is 0.250 Kg and the work done is 5.00 Joules?
e. If a mass of 250 g is added to the cart, what is the total energy given to the cart if the work done is 5.00 Joules?
f. Since the mass on the cart was doubled, what is another way to calculate the energy given to the c
Which physical adaptation increases an organism's chances of finding a mate?
O the wax-producing glands of bees
O the venom resistance of clown fish
Othe quills of a porcupine
O the mimicry of wasp beetles
Physical adaptation increases an organism's chances of finding a mate such as the quills of a porcupine. Thus, the correct option is C.
What is Physical adaptation?
An adaptation is defined as a physical, physiological, or behavioral feature of an animal that helps them to survive better in their environment in which they are living. An adaptation is some change on their body or something they do or behavior with their bodies that help them to find food, water, mates, and shelter which helps in increasing their chances of survival and produce offspring.
The quills of a porcupine is an example of physical adaptation which increases an organism's chances of finding a mate.
Therefore, the correct option is C.
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As light from a star spreads out and weakens, do gaps form between the photons?
Answer: if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets. The light from a distance star indeed spreads out and weakens as it travels, but this just reduces the wave strength and does not introduce gaps.
Explanation: it’s only fare if I return the favor ! Hope this helps <3
(5%) Problem 13: Three uniform spheres are rolling without slipping Sphere A hat mau M and tadius R Sphere Bhas mass 2M and radius 28. Sphere C has maus Mind radius 2R 25% Part() The spheres are placed at the top of an incline and released from rest. Which one is first to reach the bottom of the incline? Choose the best answer Grade 5mmary OB Deduction 09 ΟΑ. Pot 1009 QC All three reach the bottom at the same time Salons Attempting per po 25% Part (6) The spheres are rolling on a flat surface with the same linear speed. Which one has the largest angular speed? Choose the best answer Grade Summary O A and Deductions Bande Potential 10095 All three spheres have the same angular speed ОА Submissions Attempts remaining per attempt detalii 25% Part() The spheres are rolling on a flat surface with the same angular speed. Which one has the largest linear speed? Choose the best answer Grade Summary O A and COAOA, B and C OB and Potes 100% Deduction 09 Submissions Attraps e top of an incline and released from rest. Which one is first to reach the bottom of the incline? Choose the best answer A 25% Part (b) The spheres are rolling on a flat surface with the same linear speed. Which one has the largest angular speed? Choose the best answer A 25% Part() The spheres are rolling on a flat surface with the same angular speed. Which one has the largest linear speed? Choose the best answer 4 239 Part (d) Which of the spheres has the largest moment of inertia? Choose the best answer OC Grade Summary Dedactice 09 ОА Potential All three spheres have the same moment of mettia Submit Attempt 100% OB
Based on the given question, A has highest angular speed, B and C has highest linear speed and B has highest moment of Inertia.
What are spheres?
A sphere is a geometrical object that is a three-dimensional analog to a two-dimensional circle. A sphere is a set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the center of the sphere, and r is the sphere's radius.
From the given question,
[tex]m_{A} = M\\ m_{B} = 2M\\m_{C} = M\\R_{A} = M\\R_{B} = 2R\\R_{C} = 2R\\\\[/tex]
a) The acceleration of a body along an inclined for rolling without slipping is given by -
[tex]a = \frac{ g sin \theta}{1 + \frac{I}{mR^{2} } }[/tex]
For Spheres, I = 2/5 mR²
[tex]a_{A} = \frac{ g sin \theta}{1 + \frac{2}{5}mR^{2} } } =\frac{5g sin \theta}{7}[/tex]
[tex]a_{B} = \frac{g sin \theta}{1 + \frac{\frac{2}{5}(2m)(2R^{2} ) }{(2m)(2R^{2} )} } = \frac{5g sin \theta}{7}[/tex]
[tex]a_{C} = \frac{g sin \theta}{1 + \frac{\frac{2}{5}(m)(2R^{2} ) }{(m)(2R^{2} )} } = \frac{5g sin \theta}{7}[/tex]
Since all three above values are same so they reach at same time.
b) Let the linear speed be V
We have angular speed ω = V/R
ωA = V/R, ωB = V/2R, ωC = V/2R
A has highest angular speed
c) Let the angular speed be ω
VA = ωR,
VB = ω(2R)
VC = ω(2R)
B and C has highest linear speed
D) Moment of Inertia for solid sphere = I = 2/5 mR²
⇒ IA = 2/5 mR²
IB = 2/5 (2m)(2R)² = 16/5 mR²
Ic = 2/5 (m)(2R)² = 8/5 mR²
B has highest moment of Inertia
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If the distance between two masses attracted to each other is increased by a factor of 4. What is the gravitational force of attraction between the objects O 1/16 as strong O4 times stronger O 16 times stronger O force of attraction does not change
The assertion claims that the gravitational pull between the items grows four times greater.
What are example and force?The term "force" refers to a body's propensity to modify or change its state as a response of an external source. The body could change in size, shape, and movement when force is applied. A few example are kicking a soccer ball, banging on the door, and kneading bread.
Briefing:Gravitational force:
[tex]$\quad \mathrm{F}=\frac{\mathrm{Gm}_1 \mathrm{m}_2}{\mathrm{r}^2}$[/tex]
Case I An object's mass is twice
[tex]$\mathrm{m}_1^{\prime}=2 \mathrm{~m}_1$[/tex]
[tex]$$\therefore \mathrm{F}^{\prime}=\frac{\mathrm{G}\left(2 \mathrm{~m}_1\right) \mathrm{m}_2}{\mathrm{r}^2} \Rightarrow \mathrm{F}^{\prime}=2 \mathrm{~F}$$[/tex]
Consequently, the gravitational force doubles.
Case (ii): The items are now twice as far apart:
[tex]$r^{\prime}=2 r$[/tex]
[tex]$$\therefore \mathrm{F}^{\prime}=\frac{\mathrm{Gm}_1 \mathrm{~m}_2}{(2 \mathrm{r})^2} \Rightarrow \mathrm{F}^{\prime}=\frac{\mathrm{F}}{4}$$[/tex]
As a result, the gravitational pull is decreased by 4 times.
Distance between the objects is tripled i.e [tex]$r^{\prime}=3 r$[/tex]
[tex]$$\therefore \mathrm{F}^{\prime}=\frac{\mathrm{Gm}_1 \mathrm{~m}_2}{(3 \mathrm{r})^2} \Rightarrow \mathrm{F}^{\prime}=\frac{\mathrm{F}}{9}$$[/tex]
This results in a 9-fold reduction in gravitational force.
Case (iii): Both objects' masses are doubled:
[tex]$\mathrm{m}_1^{\prime}=2 \mathrm{~m}_1$[/tex] and
[tex]$$\begin{aligned}& \mathrm{m}_2^{\prime}=2 \mathrm{~m}_2 \\& \therefore \mathrm{F}^{\prime}=\frac{\mathrm{G}\left(2 \mathrm{~m}_1\right)\left(2 \mathrm{~m}_2\right)}{\mathrm{r}^2} \Rightarrow \mathrm{F}^{\prime}=4 \mathrm{~F}\end{aligned}$$[/tex]
Thus gravitational force becomes 4 times.
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Answer:
The gravitational force between two objects is inversely proportional to the square of the distance between them. If the distance between the Earth and the Moon is halved, the new distance becomes one-fourth (1/2)^2 of the original distance.
Since the gravitational force is inversely proportional to the square of the distance, reducing the distance by a factor of 1/4 would result in the gravitational force being increased by a factor of 4. Therefore, if the distance between the Earth and the Moon is halved, the gravitational force between them would become 4 times stronger.
Explanation:
The starship Enterprise, of television and movie fame, is powered by combining matter and antimatter. If the entire 400 kg antimatter fuel supply of the Enterprise combines with matter, how much energy is released? How does this compare to the EU's yearly energy use, which is roughly 6.9 x 10^19 J ?
Einstein then quantitatively presented his findings: energy (E) equals mass (m) times the speed of light (c) squared (2), or E=mc2.
The equation disclosed a secret that had escaped physicists for centuries: mass and energy are various manifestations of the same substance.
the special relativity theory that reflects the notion that mass and energy are the same physical object and may be transformed into each other. In the equation, the increased relativistic mass (m) of a body multiplied by the speed of light squared (c2) equals the body's kinetic energy (E).
E=mc²
E=400kg*(2.998x10⁸)²J
E=3595.2016J
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1. about a trillion comets are thought to be located far, far beyond pluto in theblank.target 1 of 6 2. the bright spherical part of a comet observed when it is close to the sun is the blank.target 2 of 6 3. a comet's blankstretches directly away from the sun.target 3 of 6 4. a comet's blankis the frozen portion of a comet.target 4 of 6 5. particles ejected from a comet can cause a(n) blankon earth.target 5 of 6 6. the blankextends from about beyond the orbit of neptune to about twice the distance of neptune from the sun.
About a trillion comets are thought to be located far, far beyond Pluto in the blank is Oort cloud.
What is comet?
The comets' nuclei have a range of 100 m to 40 km acros. They are made up of frozen gases such carbon monoxide, carbon dioxide, methane, and ammonia as well as rock, dust, water ice, and frozen liquids.
What is Oort cloud ?
The Oort Cloud is thought to be a huge spherical shell that surrounds the Sun, planets, and Kuiper Belt Objects while the orbits of our solar system's planets are flat and level. The icy, comet-like particles form something resembling a large, thick bubble around our solar system.
Therefore, about a trillion comets are thought to be located far, far beyond Pluto in the blank is Oort cloud.
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A force of 5.0N moves a 6.0kg object along the floor at a constant speed of 2.5 m/s. How much work is done in 25s? What power is being used?
Answer:
W = 312.5 J
P = 12.5 W
Explanation:
W = Fd
First find d:
d = vt = (2.5 m/s)(25 s) = 62.5 m
Now find W;
W = (5.0 N)(62.5 m) = 312.5 J
Power = P = W/t = 312.5 J / 25 s = 12.5 Watts
If you weigh 982 N on Earth, what would your weight be on the surface of Jupiter?
g = 9.8 m/s^2 on Earth's surface
g = 26.0 m/s^2 on Jupiter's surface
mass of the Earth is 6 x 1024 kg
mass of Jupiter is 1.9 x 1027 kg
radius of Earth is 6.4 x 106 m
radius of Jupiter is 7 x 107 m
Round your answer to the nearest whole number.
Mass is always the same. The magnitude of weight on the surface of Jupiter is 2605.3 N
What is Weight ?Weight can simply be defined as a gravitational pull on an object in space. It is the product of mass and acceleration due to gravity.
Given that;
g = 9.8 m/s^2 on Earth's surface
g = 26.0 m/s^2 on Jupiter's surface
mass of the Earth is 6 x 1024 kg
mass of Jupiter is 1.9 x 1027 kg
radius of Earth is 6.4 x 106 m
radius of Jupiter is 7 x 107 m
If you weigh 982 N on Earth, your mass can be calculated by using weight formula. That is,
W = mg
982 = 9.8m
m = 982/9.8
m = 100.2 Kg
The mass is always constant. Your weight on the surface of Jupiter can be calculated in the same way where g = 26.0 m/s^2 on Jupiter's surface
W = mg
W = 100.2 × 26
W = 2605.3 N
Therefore, your weight will be 2605.3 N on the surface of Jupiter.
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an force of 10 newtons acts on a 20 kilogram mass. the acceleration of the mass is question 13 options: 2m/s^2 1m/s^2 0.5m/s^2 200m/s^2
The change in momentum ΔP is 100kgm/s
What are newton's laws of motion?
Newton's laws of motion are three basic laws of classical mechanics that describe the relationship between the motion of an object and the forces acting on it. These laws can be paraphrased as follows: A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force.
Applying Newton's second law
∑F=ma
⇒F=ma
⇒10(N)=20(kg) a
⇒a=0.5m/s^2
Step 2: Final speed
Since acceleration is constant,
∴ Applying the equation of motion
v=u+at
u= Initial speed =0
v= Final speed
v=0+0.5(m/s^2 )×10(s)
=5m/s
Step 3: Change in momentum ΔP
ΔP=m(v−u)
=20(5−0)kgm/s
=100kgm/s
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problem 12.21 redo problem 12.20 using vesics methods assuming that skin friction is distributed uniformly along the shaft.
Using vedic math method assuming that skin friction is distributed uniformly along the shaft the correct anwer is 264.
Step 1: 1 * 4 = 4 (last digit)
Step 2: 4 * 1 + 1 * 2 = 6
Step 3: 1 * 2 = 2 (first digit)
Therefore, the correct answer using vedic math in this question is 264.
What do you mean by vedic maths?
Vedic mathematics is a system of mathematics discovered by the Indian mathematician Jagadguru Shri Bharathi Krishna Tirthaji between 1911 and 1918 and published his findings in the Vedic Mathematics Book by Tirthaji Maharaj.Solving problems using regular mathematical steps is sometimes difficult and time-consuming. But with Vedic Mathematic's general techniques (applicable to all given data sets) and Specific Techniques (applicable to specific given data sets) numerical calculations can be done very quickly.To know more about the start of vedic maths, click the link given below:
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what happens to the force when one mass is doubled and the other mass is tripled
If the mass of one of the objects is tripled, then the force of gravity between them is tripled. If the mass of both of the objects is doubled, then the force of gravity between them is quadrupled; and so on. What happens to the acceleration of an object when mass is increased? If you increase the mass at a given force the rate of acceleration slows.
what is the voltage of a toaster oven if it has a resistance of 735 ohms and a has current of 0.63 amps?
The voltage of a toaster oven is 463.05 volt.
What is Ohm's law?Under the assumption that all physical parameters and temperatures remain constant, Ohm's law asserts that the voltage across a conductor is directly proportional to the current flowing through it.
This current-voltage relationship is expressed mathematically as:
V = IR
Given that: resistance of the toaster oven : r = 735 ohm.
Current flowing through it: I = 0.63 Ampere.
Hence, potential drop across the toaster oven : V = IR
= 0.63 × 735 volt
= 463.05 volt.
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The (Figure 1) shows two thin beams joined at right angles. The verticalbeam is 12.0kg and 1.00 m long and the horizontal beam is 26.0kg and 2.00 m long. Neglect the lateral dimensions of the beams.1)Find the center of gravity of the two joined beams. Express your answer in the form x,y, taking the origin at the corner where the beams join.2)Calculate the gravitational torque on the joined beams about an axis through the corner
A) The center of the gravity of the two joined beams is;
(x, y) = (25/44), (19/88)
B) The gravitational torque on joined beams about an axis through the corner is;
τ = 245 N.m
How to calculate the gravitational torque on the joined beams about an axis through the corner?We have;
Mass of the vertical beam; m₂ = 19 kg
Mass of the horizontal beam, m₁ = 25 kg
Length of the horizontal beam; L₁ = 2 m
Length of the vertical beam; L₂ = 1 m
A) The formula for the center of gravity of the two joined beams is;
(x, y) = [(m₁x₁ + m₂x₂)/(m₁ + m₂)], [(m₁y₁ + m₂y₂)/(m₁ + m₂)]
Where;
(x₁, y₁) is the center of gravity on horizontal beam
(x₂, y₂) is the center of gravity on vertical beam
(x₁, y₁) = (L₁/2, 0)
Putting in the relevant values gives;
(x₁, y₁) = (2/2, 0)
(x₁, y₁) = (1, 0)
(x₂, y₂) = (0, L₂/2)
Putting in the relevant values gives;
(x₂, y₂) = (0, 1/2)
(x₂, y₂) = (0, 0.5)
Thus, the center of gravity of the 2 joined beams is;
(x, y) = [((25 × 1) + (19 × 0))/(25 + 19)], [((25 × 0) + (19 × 0.5)))/(25 + 19)]
(x, y) = (25/44), (19/88)
B) The formula for the gravitational torque on the joined beams about an axis through the corner is given as;
τ = (m₁g)x₁ + (m₂g)x₂
Putting in the relevant values;
τ = (25 × 9.8)1 + (19 × 9.8)0
τ = 245 N.m
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AA1056317 avatar
AA1056317
13 hours ago
Physics
College
If you weigh 982 N on Earth, what would your weight be on the surface of Jupiter?
g = 9.8 m/s^2 on Earth's surface
g = 26.0 m/s^2 on Jupiter's surface
mass of the Earth is 6 x 1024 kg
mass of Jupiter is 1.9 x 1027 kg
radius of Earth is 6.4 x 106 m
radius of Jupiter is 7 x 107 m
Round your answer to the nearest whole number.
(ANSWER IS 2605 BUT I NEED TO KNOW HOW TO GET THE ANSWER)
The magnitude of your weight on the surface of Jupiter is determined as 2,605.2 N.
What is your mass?The magnitude of your mass which does not change on both Earth and Jupiter is calculated from your weight on Earth by applying Newton's second law of motion as follows;
W = mg
where;
m is your massg is acceleration due to gravity on Earthm = W / g
m = 982 N / ( 9.8 m/s²)
m = 100.2 kg
The magnitude of your weight on the surface of Jupiter is calculated as follows;
W = mg
where;
m is your massg is acceleration due to gravity on JupiterW = 100.2 kg x 26 m/s²
W = 2,605.2 N
Thus, the weight of objects or individual changes with direction due to variation in acceleration due to gravity while the mass of objects or individuals remains constant.
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Magnetic field lines about a current-carrying wire Answer extend radially from the wire. circle the wire in closed loops. choices A and B are both correct. none of the above choices are correct
Magnetic field lines about a current-carrying wire circle the wire in closed loops.
What is a magnetic field?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.
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Read the following scenario and answer the question(s) below. A military base a few miles from a medium-sized city is being decommissioned. The base is a large one, sited along a coastline, and include some small is, pristine woodlands and wetlands, streams, a river, and a small lake. There is a railroad spur that connects the base with the nearby city, as well as a four-lane highway. The base contains housing schools, a hospital, shops, and recreational areas for a population of 10.000. The city's options for using, selling or leasing the land are numerous, and many groups come forward with proposals As an ecological resource manager, your preliminary environmental studies should include inquiry into whether a new housing development just outside the city limits may increase traffic on the connecting highway the city needs to obtain a great deal of revenue from the final choice the wetlands include oyster beds and shallow ostuaries that are habitats for shrimp, crabs, and fish which are supporting many local industries the lake should be provided with docks and a marina for sport fishermen the financial situation of some potential investors is shaky
As an ecological resource manager, your initial environmental studies should include investigating whether wetlands include oyster beds and shallow estuaries which are habitats for shrimp, crabs, and fish that support many local industries.
When viewed from an ecological perspective, the main factors to consider are the state of the environment and the living things that live in it.
The relationship between the environment and sustainable development is one indicator of sustainable development which is to minimize environmental damage as a result of development.
Environmentally sound development is a conscious and planned effort to use and manage resources wisely in planned and irrational development to improve the quality of human life.
This question is not written neatly, and this question is a multiple choice
As an ecological resource manager, your preliminary environmental studies should include inquiry into whether
a) a new housing development just outside the city limits may increase traffic on the connecting highway b) the city needs to obtain a great deal of revenue from the final choice c) the wetlands include oyster beds and shallow ostuaries that are habitats for shrimp, crabs, and fish which are supporting many local industries d) the lake should be provided with docks and a marina for sport fishermen e) the financial situation of some potential investors is shakyThe true choice is C
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Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of what?
A) scientific hypothesis
B)technology
C)deductive reasoning
D) scientific method
A scale measures the weight of a light object to be 11.000lbs +- 0.034 lbs. What is the uncertainty if this same scale is used to measure an object that weighs 78.000 lbs? Assume that the percent uncertainty of the scale remains constant.
A)0.034 lbs
B)0.044 lbs
C)0.240 lbs
D)0.310 lbs
Answer: 1)Scientists seek to acquire: scientific hypothesis
2)A scale measures the weight of a light object: 0.240 lbs
3)What does the process of scientific inquiry: It starts with a problem to solve or a question to answer
4)A mouse in a maze scurries 41 cm south: 76 cm southwest
5)When might an object's average velocity be equal to its average speed in two dimensions:
If the object moves in a straight line in one direction represented as positive, then the magnitude of average velocity will be equal to the average speed.
6)Using the velocity versus time graph, calculate the acceleration of Object A: 3 m/s^2
7)What is the range of a bullet fired horizontally at a height of 1.5m: 66.4m
8)What two vertical forces act on a falling leaf: weight, friction
9)What is equal and opposite to the applied force: spring force
10)Using the free-body diagram, calculate the net force: 12N, right
11)How does the force of impact during a collision change: it increases
12)The threads of a screw used to fasten two pieces of wood: by increasing the normal force exerted by the wood on the screw thread
13)A 60 kg skier with an initial velocity of 12 m/s coasts up a hill: 2.5m
14)A 1,500 kg car’s speed changes from 30 m/s to 15 m/s: -506,250 (negative 506,250| NOT POSITIVE)
15)What is true about weather: The weather depends on so many conditions that it is not possible to account for them all in any model.
16)A student records the mass of objects A, B, C, and D: A
17)Newton’s cradle is a contraption where metal balls: friction force
18)In a closed system, an object with a mass of 10 kg: 12kgm/s
19)Given the data, what is the kinetic energy of the: 3J
20)A wedge is a simple machine that is essentially two: A length of 12 in. and a thickness of 2 in.
21)Object A and Object B are at equal distances on opposite: 3/4
22)A geosynchronous satellite has an orbital period of 24: 35,900 km
23)Calculate the eccentricity for the planet if the: 0.0167
24)A planet travels in its orbit close to apogee : the same amount of time
25)If astronomers discovered a new planet and found its: 22.3 AU
Explanation:
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An airplane is flying 340 km/hr north. The wind is blowing 40 km/hr south. What is the plane's actual
velocity?
Answer:
magnitude and direction of a plane's speed. There is a wind of 35 MPH in the direction of 260 if it is flying with .
Answer:
Explanation:
Since the speed of the aircraft and the wind speed are directed in the same direction, the actual speed of the aircraft:
V = 340 + 40 = 380 km/h
a perfectly circular mirror in radius is placed in the path of a plane electromagnetic wave with an intensity of g
Answer:
what the question?
Explanation:
What happens to the salt crystals in the bottom of the tank
B. More of the salt dissolves because the additional water can hold more salt ions
A 60.0 kg student is riding in an elevator when it starts accelerating upward at 3.0 m/s2. What is the apparent weight the student feels?
Answer:
768 N
Explanation:
Apparent weight is the Normal force (N) acting on the student by the elevator floor.
N = mg + ma = (60 kg)(9.8 m/s2) + (60 kg)(3.0mm/s2) = 768 N
This is why you feel heavier when you are accelerating UP in an elevator. Try jumping in an elevator accelerating up. It's hard!
which statement is true of the temperature of the two substances when they reach thermal equilibrium? (assume no heat loss other than the thermal transfer between the substances.)
The final temperature of both substances is closer to the intital temperature of substance A than the initial temperature of substance B.
What is specific heat capacity?
In thermodynamics, the specific heat capacity of a substance is the heat capacity of a sample of the substance divided by the mass of the sample, also sometimes referred to as massic heat capacity.
Specific Heat Capacity, in physics, is the quantity of heat necessary to increase 1 Kelvin per 1 kilogram of substance, i.e., each substance has its own specific heat capacity.
Substances with different temperatures when in contact with each other reach the same final temperature.
A's specific heat capacity is twice as big as B's specific capacity. This means it is necessary twice as much heat for B to reach its final temperature. Therefore, the final temperature is closer to the initial temperature of substance A.
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hillyard's classic study of auditory attention found that erps for attended stimuli are group of answer choices
Overt attention is attention in which the emphasis aligns with the individual's sensory orientation.
What kinds of stimuli are there?
Chemoreceptors detect chemical presence.
Thermoreceptors sense temperature variations.
Mechanical forces are detected by mechanoreceptors.
During vision, photoreceptors sense light.
Sensory receptors include baroreceptors, propioceptors, hygroreceptors, and osmoreceptors.
Stimuli are changes in the environment (external or internal) to which the organism responds and reacts. It is something that motivates or accelerates action, feeling, or thought.
In this example, you will learn about four main forms of visual stimuli: bitmap: These are photographs (like photos or cartoons or little icons). rectangle: A square stimulus having a specific width, height, and colour. A circle is a circular stimulus with a certain diameter and colour.
Overt attention is attention in which the emphasis aligns with the individual's sensory orientation.
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a lens which is thicker in the middle than at the edges is a group of answer choices diverging lens. achromatic lens. antireflection lens. converging lens.
A converging lens is one that is thicker in the centre than it is at the edges.
Converging Lens
Light is directed to a point at the optical centre or axis of a convergent lens. a lens that creates a true image by converting parallel light beams to convergent light rays. The image is actual and inverted as long as the object is outside of the focal point. The image becomes virtual and upright when the object is inside the focal point. A lens is a transmissive optical tool that refracts light to change how sharply it focuses. The lens in this instance is referred to as a positive or converging lens.
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which of the following is a consequence of the discovery of hot jupiters for understanding our own solar system?
Answer:
The explanation is given below:
Explanation:
It shows that we do not fully understand the formation of our Solar System.
It has been modified to allow for planets to migrate inwards or outwards due to gravitational interactions.
the grounding electrode(s) is connected to the equipment ground conductor at the service or separately derived system with the
It is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
What is ground conductor ?
One who intentionally connects a wire or conductor to the earth is said to be a grounding conductor. The term "ground conductor" or "case ground" are terms used to describe the grounding conductor. The ground wire is typically attached to an appliance, tool, or case that is part of the electrical box or its exterior.
What is grounding electrode ?
A conductive object known as a grounding electrode creates a direct connection to the earth or ground. A grounding electrode must make direct contact with the ground; this is crucial. Although there are many conductive items in a structure, not all of them directly link to ground.
A grounding electrode conductor must be sized in line with 250.66 for the derived ungrounded conductors for each individually deriving system. It is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
Therefore, it is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
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