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Levart [38]
2 years ago
6

Which of the following has kinetic energy?

Physics
1 answer:
Sergeu [11.5K]2 years ago
8 0

<u>ANSWER</u>

I think the answer is B(a girl sprinting) because for the girl to sprint, she should be in motion

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Two identical small charged spheres are a certain distance apart, and each initially experiences an electrostatic force of magni
Rom4ik [11]

Answer:

New force, F'=\dfrac{1}{4}F

Explanation:

The electrostatic force between two spheres is given by :

F=\dfrac{kq_1q_2}{r^2}

According to given condition, each of the spheres has lost half its initial charge, new force is given by :

F'=\dfrac{kq_1/2q_2/2}{r^2}

F'=\dfrac{1}{4}\times \dfrac{kq_1q_2}{r^2}

F'=\dfrac{1}{4}F

So, the new force becomes (1/4)th of the initial force. Hence, the correct option is (d).                  

4 0
3 years ago
A cheetah can go from a state of resting to running at 20 m/s in just 2 seconds.
Andreyy89
10 m/s2 for a distance of 65.2 ft
5 0
3 years ago
What cultular value does this melodic line portray?<br>a.jubilant<br>b.reserved<br>c.rich<br>d.poor​
SOVA2 [1]

<em>What cultular value does this melodic line portray?</em>

<em>answer</em><em> </em><em>:</em><em> </em><em>reserved</em><em>.</em><em>.</em><em>.</em>

6 0
3 years ago
I NEED HELP :) ty.............
Black_prince [1.1K]

Answer:

The answer to your question is given below

Explanation:

From the question given above, we can see that the wave with a higher frequency has a shorter wavelength while that with a lower frequency has a longer wavelength. This is so because the frequency and wavelength of a wave has inverse relationship. This can further be explained by using the following formula:

Velocity = wavelength x frequency

Divide both side by wavelength

Frequency = Velocity /wavelength

Keeping the velocity constant, we have:

Frequency ∝ 1 / wavelength

From the above illustration, we can see clearly that the frequency and wavelength are in inverse relationship. This implies that the higher the frequency, the shorter the wavelength and the shorter the frequency, the higher the wavelength.

7 0
2 years ago
Explain how fossil fuel use in the US makes us vulnerable to the demands of foreign countries.
daser333 [38]

Well the US doesn't naturally have a lot of fossil fuels so we rely on other countries who do have fossil fuels. So if we aren't that friendly with Saudia Arabia (they have a bunch of oil) then they can hike up the prices or cut us off from their oil supply completely which would cripple the US severly. So with that being said, we NEED other countries, and the big question is when will they not NEED us. At any point in which they feel that they don't need us they can just cut us off, which would be bad.

Hope that helps :)

4 0
3 years ago
Read 2 more answers
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