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3 years ago

An apple and a stone dropped from certain height accelerates:Required to answer. Single choice.Immersive Reader

Physics

1 answer:

Vinvika [58]3 years ago

7 0

An apple and a stone dropped together from any height accelerate <em>equally.</em>

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13. Determine the kinetic energy of a 2000g roller coaster car that is moving with a speed of 2m/s.

zubka84 [21]

Answer:

4 Joules (if you mean 2000 grams)

4000 Joules (if you mean 2000 kilograms)

Explanation:

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>

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2 years ago

Bare free charges do not remain stationary when close together. To illustrate this, calculate the acceleration of two isolated p

Marta_Voda [28]

Answer:

Acceleration, $a=9.91\times 10^{15}\ m/s^2$

Explanation:

It is given that,

Separation between the protons, $r=3.73\ nm=3.73\times 10^{-9}\ m$

Charge on protons, $q=1.6\times 10^{-19}\ C$

Mass of protons, $m=1.67\times 10^{-27}\ kg$

We need to find the acceleration of two isolated protons. It can be calculated by equating electric force between protons and force due to motion as :

$ma=\dfrac{kq^2}{r^2}$

$a=\dfrac{kq^2}{mr^2}$

$a=\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{1.67\times 10^{-27}\times (3.73\times 10^{-9})^2}$

$a=9.91\times 10^{15}\ m/s^2$

So, the acceleration of two isolated protons is $9.91\times 10^{15}\ m/s^2$ . Hence, this is the required solution.

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3 years ago

What factor might be contributing to climate change

kirza4 [7]

Geological records stretching back millions of years indicate a number of large variations in Earth’s past climate. These have been caused by many natural factors, including changes in the sun, volcanoes, Earth’s orbit and CO2 levels.

However, comprehensive assessment by scientists shows that it is extremely likely that human activity has been the dominant cause of warming since the mid-20th Century.

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3 years ago

01:28:29

Novosadov [1.4K]

Answer:

an inverse relationship

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2 years ago

Calculate the G.P.E. in joules of a 675-newton climber at the top of a 3,050-meter mountain in Colorado.

almond37 [142]

Answer:2673

Explanation:

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2 years ago