What is the energy in a moving vehicle of mass 1500 kg at 60km hr?

So our solar is honestly a median star, so it is now no longer mainly big or very small at all.

So common stars do not have sufficient mass to blow up on the quit in their lives neutron stars, the pressure of gravity has beaten the resistance of electrons to compression and has compelled them to mix with protons to shape neutrons. Even the nuclei of atoms are obliterated on this process, and subsequently the collective resistance of neutrons to compression halts the collapse.

Large stars can explode as they end burning their nuclear fuel, inflicting a supernova. The explosion blows away the outer layers of the star. According to Newton's 1/3 law, the forces that push the outer layers away have response forces which can be inwardly directed at the center of the star.

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A capacitor can only be fully charged or discharged after five time constants. It is accurate to say this.

Let Q0 represent the maximum charge.

where t is the length of time, and is the speed of time.

The sum of the equal resistance R and capacitance comparable C is used to indicate the time constant for the RC circuit.

(τ=RC)

Q=Q0(1−e−t/τ)

Q=Q0(1−e−t/RC)

In the exact similar RC circuit, a capacitor's discharge equation can be obtained as

Q= Q0e−t/τ

Q=Q0e−t/RC

Both expressions make it obvious that the exact same time constant is employed for the capacitor's charging and discharging processes.

Consequently, the assertion is accurate.

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The other 3000J of energy was lost as heat to the surroundings.

We know from the first law of thermodynamics that energy can neither be created nor destroyed but it can be converted from one form to the other. Thus the we are told in the question that a stove burner applies 9000J of thermal energy to a system causing an increase of 6000J.

The other 3000 J of energy could not have disappeared into thin air because in that case there would be a violation of the first law of thermodynamics as energy is destroyed.

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The aspect of using double-sided printing was discussed in class as the most significant benefit of using only one sheet of pаper, insteаd of using two.

Printing single-sided used to be very common, but these dаys duplex printing is becoming more populаr. Double-sided printing is eco-friendly аnd cаn help you sаve money. Аrizonа Stаte University sаved over 700 trees аfter they switched to double-sided printing. In estimаtion, double-sided printing cаn sаve your business аbout hаlf of the cost of printing single-sided pаges.

Since duplex printing uses hаlf the pаper thаt one-sided printing uses, businesses cаn reduce their mаteriаls costs. Not only аre you sаving our plаnet’s trees, but you аre sаving your business money.

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The radius of the event horizon (proportional to the mass) is very small, only 30 kilometers for a non-spinning black hole with the mass of 10 Suns.

The Schwarzschild Radius, which honors Karl Schwarzschild, is the more accurate designation for the event horizon. The Schwarzschild Radius has the formula Rs = 2GM/c2. "M" stands for the black hole's mass, "c" for the speed of light, and "G" stands for the gravitational constant (6.67 x 10-11 m3/(kg x s2)). The supermassive black hole at the Milky Way's Galactic Center has a Schwarzschild radius of roughly 12 million kilometers. It has a mass of roughly 4.1 million M. The physical quantity known as the Schwarzschild radius, also known as the gravitational radius, is used to define the Schwarzschild black hole's event horizon in the Schwarzschild solution to Einstein's field equations. It is a characteristic radius associated with any quantity of mass.

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The momentum of system is zero because velocities of the bodies may be equal to zero or may be be equal in magnitude but opposite in direction.

We know very well that momentum of body is given by the product of mass of that body with the velocity of that body, or in other words

Momentum=mass × velocity

=>p=m × v

Since, we are given that total momentum of the system is zero. In this universe every object has some mass ,so mass never be zero and never be negative. Now, talking about the velocity of the body. If velocity of all bodies is zero, in that total momentum of the system remains zero. So, this will be possible.

Now, there is one more possibility in the system two bodies have same velocity in magnitude but their direction of propagation is opposite to each other. In that case also their velocity cancel each other, due to that momentum remain as it is zero. So, this is one of possibility.

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The gravitational field on planet y is one-third that on planet x.

A gravitational field is athe rgion around a mass where the effect of its gravitational force is felt.

Since planet x has a mass of m and a radius of r. planet y has a mass of 3m and a radius of 3r. identical satellites orbit both planets at a distance r above their surfaces. To find how their gravitational fields compare, we find the magnitude of their gravitational acceleration g

The gravitational acceleration is given by g = GM/R² where

For planet x, we have that

So, substituting the values of the variables into the equation, its gravitational acceleration is gx = GM/R²

gx = Gm/r²

For planet y, we have that

So, substituting the values of the variables into the equation, its gravitational acceleration is g = GM/R²

= G(3m)/(3r)²

= 3Gm/9r²

= Gm/3r²

Since gx = Gm/r², we have that

gy = Gm/3r²

= (Gm/r²)/3

= gx/3

So, the gravitational field on planet y is one-third that on planet x.

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The warm water of the lake transfers heat to the alligator through conduction.

Ectothermic animals like alligators depend on outside heat sources to maintain body temperature. By taking a sunbath or relocating to places with warmer or colder air or water temperatures, alligators may regulate their body temperature. Ectothermic, or cold-blooded, alligators experience temperature changes in response to their surroundings. Alligators are forced to actively regulate their body temperature as a result, searching out locations that are both warm and cool enough for them. Alligators may lay in the sun with their jaws open to allow heat to escape while they enjoy the Florida sunshine as it becomes too hot over 92°. Alligators will move very little during the day and become more active at night if the temperature is too high.

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The gravity on this alien planet is 3.8 m/s².

The gravity on this alien planet is calculated by applying Newton's second law of motion.

F = mg

where;

The mass of the skydiver is calculated from his weight on Earth

m = ( 1470 N ) / (9.8 m/s²)

m = 150 kg

The weight of the skydiver on the alien planet is calculated as follows;

W = 1470 N - (600 N + 300 N)

W = 570 N

The acceleration due to gravity on the alien plane is calculated as follows;

g = 570 N / 150 kg

g = 3.8 m/s²

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The refraction of the sound waves caused the echo to occur.

Walls and other solid objects, such as mountains and privacy fences, reflect acoustic waves. A break in the propagation medium can be used to explain why reflection occurs. When the reflection returns with enough magnitude and lag to be audible, this can be heard. Reverberation is the term used to describe an echo that has received several reflections from different surfaces.

If the delay is smaller than 1/10 of a second, the human ear cannot tell the difference between the echo and the original direct sound.

At a temperature of 25 °C, the sound speed in dry air is roughly 343 m/s.

As a result, for an echo to be audible to someone standing near the sound source, the reflecting object needs to be farther away than 17.2 meters. When two seconds pass between a sound and an echo, the reflecting item is 343 meters away. The most frequent natural locations for hearing echoes in nature are canyon walls or rock cliffs that face water. In comparison to the directly transmitted wave, the sound pressure level (SPL) of the echo is often measured in decibels (dB). Echoes may be advantageous (like sonar) or detrimental (as in telephone systems).

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The arrival of box and ball at the bottom will depend on the mass of the box as mass of box may be larger than mass of ball.

This is on the grounds that the impact that the frictional force have relies upon the mass, the point likewise have an extraordinary impact in the response, however it appears it's anything but a choice, merits seeing that the mass doesn't have impact in the ball moving given that the erosion is just mindful of the rolling.

The force which becomes possibly the most important factor at whatever point two articles come in touch and slide over one another is known as the frictional force. In easier words, the force which discourages movement while interacting with one more item is known as Rubbing or Frictional force. This force. extraordinarily fluctuates according to the surface of the surface which is in touch.

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Answer:

true

Explanation:

basic sports knowlegde

The magnetic field was a phenomenon that the Galileo orbiter noticed when it sailed near Europa.

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The final volume after the isobaric expansion is V2=4.29 L.

Calculation :

Let V1 be the initial volume of the gas. Considering nitrogen as an ideal gas, use the ideal gas equation to find the initial volume as,

P1V1=nRT1...............(1)

Consider the value of universal gas constant as,

R=0.0821L⋅atm⋅mol⁻¹⋅K⁻¹.

Convert temperature to Kelvin,

T1=(20+273)K=293K

Consider the molar weight of nitrogen gas as, mm=28g/mole.

The number of moles in 5g of nitrogen gas is,

n=m/mm

Substitute the known values,

n=5g/(28g/mole)

=0.179mol

Substitute all the known and calculated values in equation (1),

V1=0.179mol×0.0821L⋅atm⋅mol−1⋅K−1×293K3atm/3 atm

=1.43L

B. The final temperature after the expansion is, T2=879K.

The temperature after the expansion is evaluated using the formula,

V1/T1=V2/T2

T2=V2T1/V1

Substitute the known values,

T2=4.29L×293K/1.43L

=879K

C . The gas pressure after the decrease is P2=1atm.

Using relation,

PV/T=constant

Since volume is kept constant,

P1/T2=P2/T3

P2=P1T3/T2

Substitute the known values,

P2=3atm×293K/879K

=1atm

D. The final gas pressure is P3=3atm

Given data:

Gas is isothermally compressed to regain the initial volume, that is,

V3=1.43L .

Using relation,

PV/T=constant

Since temperature is kept constant,

P2/V2=P3/V3

P3=P2V2/V3

Substitute the known values,

P2=1atm×4.29L/1.43L

=3atm

The final gas pressure is P3=3atm

Pressure (symbol: p or P) is the force normal to the surface of an object per unit area over which that force is distributed.

Various units are used to express pressure. Some of these are units of force divided by units of area. For example, the SI unit of pressure, Pascal (Pa), is 1 Newton per square meter (N/m2). Similarly, pound-force per square inch (psi) is the traditional unit of pressure in imperial and US systems. Pressure can also be expressed as standard atmospheric pressure. Atmospheric pressure (atm) is equal to this pressure and torr is defined as 1/760 of this. Manometric units such as centimeters of water, millimeters of mercury, and inches of mercury are used to express pressure as the height of a particular liquid column within a manometer.

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Using Conservation of energy property

The equilibrium temperature reached is T = 33.8 C

According to the rule of conservation of energy, the overall energy of an isolated system stays constant over time. According to this law, which  first suggested and tested, energy can only be changed or moved from one form to another and cannot be generated or destroyed. For instance, when a stick of dynamite explodes, chemical energy is transformed into kinetic energy. One can calculate the precise reduction in chemical energy in the dynamite's combustion by adding up all the energies released during the explosion, including the kinetic and potential energy of the fragments, heat, and sound.

Heat given off by steam = Heat absorbed by ice

Qs = Qi

[tex]Qs = 0.0075(22.6\ X\ 10^5) + 0.0075(4186)(100-T)\\Qi = 0.040(3.34\ X\ 10^5) + 0.040(4186)(T-0)[/tex]

where

T = equilibrium temperature of the system

Since Qs = Qi,

[tex]0.0075(22.6\ X\ 10^5) + 0.0075(4186)(100 - T) = 0.040(3.34\ X\ 10^5) + 0.040(4186)(T - 0)[/tex]

[tex]0.1695\ X\ 10^5 + 31.395(100 - T) = 0.1336\ X\ 10^5 + 167.44(T)[/tex]

Simplifying,

[tex]0.1695\ X\ 10^5 + 3139.5 - 31.395T = 0.1336\ X\ 10^5 + 167.44T[/tex]

Combining terms,

[tex]167.44T + 31.395T = 0.1695\ X\ 10^5 - 0.1336\ X\ 10^5 + 0.031395\ X\ 10^5[/tex]

and solving for T,

T = 33.8 C

Using Conservation of energy property

The equilibrium temperature reached is T = 33.8 C

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The spring constant needed to produce a period of 0.5 s for a 0.015 kg is 2.37 N/m.

The period of spring-mass system is proportional to the square root of mass and inversely proportional to the spring constant.

We know the equation for time period as, T = 2π √(m/k)

where, T is the time period in sec

m is the mass in kg

k is the spring constant

Let us make k as the subject from the above formula,

Spring constant k = (4π² * m)/ T²

⇒ 4* (3.14)² * 0.015/ (0.5)² = 2.37 N/m

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Answer:

outer layer

Explanation:

a) The block is acted on by the force of gravity directed downward and the normal force due to the inclined plane directed perpendicular to the inclined surface.

(b) The block's acceleration as it slides down the inclined plane is 5.6 m/s².

(c) The block's speed when it reaches the bottom of the incline is 9.7 m/s.

(d) The block to reach the bottom of the inclined plane is 1.7 s.

In physics, gravity is an essential interaction that reasons mutual enchantment among all things with mass or energy. Gravity is, by a long way, the weakest of the 4 fundamental interactions, approximately 1038 times weaker than the sturdy interplay, 1036 times weaker than the electromagnetic pressure, and 1029 times weaker than the vulnerable interplay. As a result, it has no giant effect on the extent of subatomic debris. but, gravity is the maximum extensive interplay among items on the macroscopic scale, and it determines the movement of planets, stars, galaxies, and even mild.

Gravity additionally has many critical organic capabilities, supporting manual the growth of plants through the technique of gravitropism and influencing the circulation of fluids in multicellular organisms. research into the results of weightlessness has proven that gravity might also play a function in immune machine characteristics and cell differentiation in the human frame.

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According to conductive heat loss views, the adaptations would be beneficial to animals is a)Thin skinlots of tissues, like muscle, with high thermal conductivity. So,correct option is a.

Conductive heat loss is the exchange of intensity through a film. For application in spaces, for example, nurseries, the exchange of concern is ordinarily warmth from inside the nursery that is lost through the skin of the nursery into the external climate. In thermodynamics, heat is characterized as the type of energy crossing the limit of a thermodynamic framework by excellence of a temperature distinction across the limit.

The absolute intensity loss of the article includes loss happening by radiation, convection, and conduction. Heat loss is estimated by the units called Watts. Heat loss equation is communicated by, q = (U × A) ×δt Where, q = all out heat misfortune through the structure in Btu/hr,

Hence, correct option is a.

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(Complete question) is:

From the point of view of conductive heat loss, which adaptations would be beneficial to animals living in extremely cold climates?Group of answer choices

a)Thin skinLots of tissues, like muscle, with high thermal conductivity

b)As small a surface area as possible given the volume of the animal.

c)Lots of tissues, like fat, with low thermal conductivityThick skin

d)As large a surface area as possible given the volume of the animal.

Pulsing stars were discovered in the 1960s and are called pulsars:

From the conservation of angualr  momentum :

   Li = Lf

I_i w_i = i_f w_f

( 2/5 m R_i^2 ) w_i = ( 2/5 m R_f^2) wf

R_f = R_i sqrt w_i/ w_f

     =2.82 * 10^6 m/s

Momentum is fabricated from the mass of a particle and its velocity. Momentum is a vector amount; i.e., it has both significance and course. Isaac Newton's second regulation of motion states that the time rate of exchange of momentum is equal to the force appearing on the particle.

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The magnetic field strength required for electrons to pass through without being deflected is zero.

Assuming that the magnetic field is confined to the region between the electrodes, the magnetic field strength necessary to allow the electrons to pass through without being deflected depends on the velocity of the electrons. The higher the velocity of the electrons, the higher the strength of the magnetic field is required to deflect them. For example, if the electrons are moving at a velocity of 10,000 meters per second, then the magnetic field strength needed to deflect them would be approximately 0.05 Tesla.

The strength of the magnetic field is also affected by the distance between the electrodes. The greater the distance between the electrodes, the higher the field strength is necessary to deflect the electrons. For example, if the distance between the electrodes is increased from 1 cm to 10 cm, then the magnetic field strength needed to deflect the electrons would increase from 0.05 Tesla to 0.5 Tesla.

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A muon takes to decay in the observer's rest frame is 3.08 μs.

A muon is an unstable subatomic particle that decays into other particles with a mean lifetime of 2.20 μs. This is in the muon reference frame.

The formula for the relativistic factor

[tex]\gamma \:=\: \frac{1}{\sqrt{1 \:-\: (\frac{v}{c})^2}}[/tex]

[tex]\gamma \:=\: \frac{1}{\sqrt{1 \:-\: (\frac{0.7c}{c})^2}}[/tex]

[tex]\gamma \:=\: \frac{1}{\sqrt{1 \:-\: 0.7^2}}[/tex]

[tex]\gamma \:=\: \frac{1}{\sqrt{1 \:-\: 0.49}}[/tex]

[tex]\gamma \:=\: \frac{1}{\sqrt{0.51}}[/tex]

[tex]\gamma \:=\: \frac{1}{\sqrt{1 \:-\: 0.7^2}}[/tex]

[tex]\gamma \:=\: \frac{1}{0.714}[/tex]

γ = 1.4

Relativistic time interval formula

t = γ t₀

t = 1.4 × 2.2

t = 3.08 μs

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Based on the wavelength of the light, the energy of the photons emitted by a sodium lamp is 17.74 X 10² kJ/mol.

The energy is given by the formula;

E = hv

where,

h is Planck's constant = 6.63 X 10⁻³⁴ Js

f is frequency of light

Also, f = c/λ

where,

c is velocity of light = 3.0 X 10⁸ m/s

λ is wavelength of light = 589 nm = 6.75 X 10⁻⁷ m

1 mole of sodium atom will emit 6.02 X 10²³ photons,

N = 6.02 X 10²³ photons,

Thus,

= E = Nhc/λ

= E = (6.02 X 10²³ X 6.63 X 10⁻³⁴ J.s X 3.0 X 10⁸ m/s)/6.75 X 10⁻⁷ m

= E = 119.74 X 10⁻³ / 6.75 X 10⁻⁷

= E = 17.74 X 10⁵ J/mol

= E = 17.74 X 10² kJ/mol

Therefore, the energy of the photons emitted by a sodium lamp is 17.74 X 10² kJ/mol.

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His run covered a distance of 6 meters more than his displacement. Only the terminal points determine displacement. Displacement is unrelated to the path travelled.

Let the distance to the first base be x m.

Given: x m is the distance to the first base.

Thus, distance, after overrun, equals x + 3 m.

Distance after returning is therefore equal to

x + 3 + 3 = x + 6 m.

Displacement is now equal to

x + 3 - 3 (going back) = x m.

Because x + 6 > x, displacement equals distance.

the magnitude of the player's total displacement from the batter's box is

6 meters.

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If the path is frictionless than doubling the mass of the crate and keeping the initial velocity and changed will not change the distance of stopping of the crate.

The stopping distance of anybody sliding on a frictionless path is given by the relation,

D = U²/2a

Where,

D is the stopping distance,

U is the initial velocity and,

a is the acceleration of the body.

As we can see from the above relation that the mass of the body does not alters the stopping distance of the body.

So, here we can conclude that if if mass of the crate is doubled but the initial velocity is not changed, then the distance of stopping of the create will not change.

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A hydraulic lift is being used to elevate a car. The left side of the lift has higher pressure.

We know that, Pressure = Force/ Area

Pressure and area are inversely proportional to each other.

We need to find out the relation between pressures and areas of the two pistons.

So, P₁ A₁ = P₂ A₂

Let the right side of the lift that has larger area is A₂.

Hence, A₂ > A₁

As pressure and area are inversely proportional to each other, to balance the equation, P₂ should have lesser pressure as A₁ is less than A₂.

Thus, P₁ is greater than P₂ and the left side of the lift has greater pressure.

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Photon energy is denoted by hc/lamda. If we consider that an electron's total energy e is much more than its rest energy. Additionally, the de Broglie wavelength of an electron.

Is the same as the wavelength of a photon. One photon's energy is referred to as photon energy. Energy is inversely proportional to wavelength and directly proportional to the electromagnetic frequency of the photon. The frequency of a photon determines its energy. The energy of a photon decreases according to its wavelength. In physics, the wavelength is the length over which a periodic wave repeats, or its spatial period. It is the separation between adjacent spots on a wave that correspond to the same phase.

Photon energy is denoted by hc/lamda.

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The majority of the sky is black because of light pollution, which also occasionally makes the sky seem lighter than it ought to be and has numerous other detrimental consequences on the environment. Light pollution also obscures the stars.

A galaxy is a collection of stars, stellar debris, intergalactic gas, dust, and gravitational waves that are gravitationally bonded together.

The phrase comes from the Greek word galaxies, which literally translates to mean "milky" and refers to the Galaxy, which houses the Solar System. Galaxies vary in size from dwarf with fewer than 100 million stars to the largest known galaxies, red giants with the one hundred times stars around their galaxy's mass center.

Galaxies are thought to have an average of 100 million stars.

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The magnitude of the velocity change increases with lengthier acceleration. When acceleration is constant, the change in velocity is directly proportional to time.

The rate at which the velocity of any moving object changes is measured by acceleration. The velocity change divided by the time represents the acceleration. Both the magnitude and the direction of acceleration are present.

Therefore, An object's motion can be depicted by a velocity-time (or speed-time) graph if it moves in a straight line. The line's gradient is equal to the object's acceleration.

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