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dsp73
2 years ago
6

Explain what is happening when the girl is at each point. **The girl has started at 1 and goes to 4.

Physics
1 answer:
Shkiper50 [21]2 years ago
5 0
Gravity
Is happening
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Define heat capacity of a substance.<br>Write the S.I unit of heat capacity.​
creativ13 [48]

Define heat capacity of a substance:

  • The heat capacity of a substance can be defined as the amount of heat required to change its temperature by one degree.

Write the S.I unit of heat capacity:

  • Joule per Kelvin

\:  \:  \:

  • Joule per Celsius

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

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6 0
2 years ago
What is the acceleration of a 7 kg mass if the force of 70 N is used to move it toward the Earth?
Assoli18 [71]

Answer:

<h2>10 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

m is the mass

f is the force

From the question we have

a =  \frac{70}{7}  = 10 \\

We have the final answer as

<h3>10 m/s²</h3>

Hope this helps you

4 0
2 years ago
A freezer has a coefficient of performance of 4.1. You place 0.45 kg of water at 16°C in the freezer, which maintains its temper
velikii [3]
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5 0
2 years ago
Which feature of electromagnets makes them more useful than permanent
mezya [45]
I think it’s D................
4 0
3 years ago
If the frequency of the incoming light is increased, will the energy of the ejected electrons increase, decrease, or stay the sa
Arlecino [84]

Answer:

increase

Explanation:

According to Einstein's photoelectric equation; the energy of a photon striking a metal surface is related to the kinetic energy of the ejected photoelectron by the formula;

KE= hf - hfo

Where h is the planks constant, f and fo refer to the frequency of incident photon and the threshold frequency respectively.

Hence, we can clearly see from the foregoing that the kinetic energy of the ejected photoelectron is proportional to the frequency of the incident photon.

Hence, if the frequency of the incident photon is increased, the kinetic energy of the ejected photoelectron increases also.

3 0
2 years ago
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