A permanent magnet is pushed into a coil of wire, left there for a while, and
then pulled out. When does a current run through the wire?
OA. As the magnet moves into and out of the coil
OB. Only when the magnet is first being pushed into the coil
OC. While the magnet remains within the coil
OD. From the time that the magnet is pushed in to the time it is pulled
out

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.

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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Answer:

1000

Explanation:

25x40=1000

Answer:

If you drive west at 40 miles per hour for 25 hours, you would travel 1000 miles.

Explanation:

This is determined by multiplying the speed you are traveling (40 miles per hour) by the amount of time you are traveling (25 hours), which gives you 1000 miles. It's important to note that this is only an estimate, as various factors such as traffic and road conditions can affect your actual travel distance. Additionally, driving for extended periods of time can be dangerous, so it's important to take regular breaks and make sure you're well rested before getting behind the wheel.

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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Answer:

what the question?

Explanation:

The abnormalities in the genetic code must be found and corrected on time as it could lead to inherited disorders which could be life-threatening.

Genetic abnormalities are the conditions which are caused by changes to the genes or chromosomes. Genetic disorders are also known as inherited disorders which are caused by mutations in the genetic code. Genetic disorders include disorders such as cystic fibrosis, sickle cell disease, and Tay-Sachs disease.

Cells become diseased because certain genes work incorrectly or does not work at all. Replacing the defective genes in the diseased organisms may help treat certain diseases. For instance, a gene called p53 prevents tumor growth. Several types of cancer which have been linked to problems with the p53 gene.

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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

The voltage of a toaster oven is  463.05  volt.

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 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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The acceleration of the car moving with a velocity of 23 m/s is 25.13 m/s².

Acceleration is the rate of change of velocity.

To calculate the acceleration of the car, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the acceleration of the car is 25.13 m/s².

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The tangential speed of the moon as it leaves the orbit of the earth to the nearest whole number is 9 * 10^7 m/s.

We know that the tangential velocity has to do with the velocity of the moon when it leaves the circular orbit of the earth. For this we have to call to mind some of the basics of the circular motion. We have to use the formula that says;

V = 2πr/T

We now have to define each and every one of the terms that we have in the equation so that we can be able to apply them to be able to solve the problem meaningfully and we have;

V = velocity

r = Distance covered

T = Period

Where we have from the question;

V = ?

r = 3.84 x 10^8 m

T =  27 days

V = 2 * 3.142 * 3.84 x 10^8/27

V = 8.9 * 10^7 m/s

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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

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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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                        

The true choice is C

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The period of oscillation is 4.44 s

The period of oscillation is the time it takes the spring to complete one cycle of motion.

Using the law of conservation of energy, the total mechanical energy at the origin (x = 0) equals the total mechanical energy at maximum displacement (x = A).

Since

So, U₁ + K₁ = U₂ + K₂ where

So, substituting the values of the variables into the equation, we have

U₁ + K₁ = U₂ + K₂

0  + 2m(π/T)²A² = kA⁴ + 0

2m(π/T)²A² = kA⁴

2m(π/T)² = kA²

Making T subject of the formula, we have

T² = 2mπ²/kA²

T = π/A√(2m/k)

Since m = k = A = 1, we have that the period of oscillation is

T = π/A√(2m/k)

T = π/1√(2 × 1/1)

T = π√2

T = 1.4142π

T = 4.443 s

T ≅ 4.44 s

So, the period is 4.44 s

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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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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

Answer:

Biology, Geology, Geography, chemistry, etc.

Explanation:

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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B. More of the salt dissolves because the additional water can hold more salt ions

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

Physical adaptation increases an organism's chances of finding a mate such as the quills of a porcupine. Thus, the correct option is C.

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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Mass is always the same. The magnitude of weight on the surface of Jupiter is 2605.3 N

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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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.

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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The magnitude of your weight on the surface of Jupiter is determined as 2,605.2 N.

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 = 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;

W = 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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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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Sure I'll do that!

:D

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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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.

Answer:

increase

Explanation:

The potential energy of the object at a certain height converts to kinetic energy as the object falls.  Objects in free fall are accelerating, so the velocity is increasing every second that the object is falling.  KE = 1/2mv², so the greater the v, the greater the KE.