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Mnenie [13.5K]
3 years ago
15

How does adding energy to matter by heating it affect the energy of its particles

Physics
1 answer:
a_sh-v [17]3 years ago
6 0
When heat is added to a substance the molecules and atoms vibrate faster. As atoms vibrate faster , the space between atoms increases. The motion and spaceing of the particles determines the state of matter of the substance.
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The average radial velocity of galaxies in the Hercules cluster is 10,800 km/s. (a) using H0 = 73 km/s/Mpc, find the distance to
ArbitrLikvidat [17]

Answer:

a) 147.95 Mpc

Explanation:

Using Hubble's formula

v = H_od

where;

v = radical velocity

H_o = Hubble's constant

d = distance

Given that:

The average radial velocity of galaxies in the Hercules cluster v =  10,800 km/s

Also using H_o = 73 km/s/ Mpc ; we  make distance d the subject of the formula:

Then distance d can be written as:

d = \frac{v}{H_o}

d = \frac{10,800  \ km/s}{73 \ km/s/Mpc}

d = 147.95 Mpc

b)

Now, if the Hubble constant had a smaller value, then for a  given velocity the distance to the galaxy will increase because distance d is inversely proportional to H_o

i.e  

d  ∝ \frac{1}{H_0}

4 0
3 years ago
Two girl scouts are sitting in a large canoe on a still lake while at summer camp. the canoe happens to be oriented with the fro
MrRissso [65]
That it's more puashe on the back of the canoe and that effects the back of the canoe to fall back
7 0
3 years ago
The Earth's electric field creates a potential that increases 100 V for every meter of altitude. If an object of charge 4.5 mC a
castortr0y [4]

Answer:

The final kinetic energy is  K =  1.1 \ J

Explanation:

From the question we are told that

    The electric field is  E =  100 \ V/m

    The charge on the object is  q =  4.5 mC  =  4.5 *10^{-3} \ C

    The mass of the object is  m_o  =  68 \ g  = 0.68 \ kg

     The distance moved by the object is d =  1.0 \ m

The workdone on the object by the fields  is  mathematically represented as

   W =  [qE + mg]d

Now this workdone is equivalent to the final kinetic energy so  

      K = W =  [qE + mg]d

substituting values

        K = W =  [4.5*10^{-3  } *100  + 0.68 * 9.8]* 1

        K =  1.1 \ J

8 0
2 years ago
Which of Newton's motion laws BEST explains WHY a rock falls when it is dropped from a bridge?
erma4kov [3.2K]
It’s A because it stays in motion whenever you drop it
4 0
3 years ago
Read 2 more answers
Light does not pass through some materials. What do you think happens
Hatshy [7]

Answer:

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon)

A photon is a quantum of EM radiation. Its energy is given by E = hf and is related to the frequency f and wavelength λ of the radiation by. E=hf=hcλ(energy of a photon) E = h f = h c λ (energy of a photon) , where E is the energy of a single photon and c is the speed of light.

7 0
1 year ago
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