3 years ago

A 2.34 kg book is dropped from a height of +3.1 m. (a) What is its acceleration?

Physics

1 answer:

frosja888 [35]3 years ago

8 0

<span> 9.8 m/s^2 is the answer</span>

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g An astronaut must journey to a distant planet, which is 189 light-years from Earth. What speed will be necessary if the astron

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Answer:

The value is $v = 2.999 *10^{8} \ m/s$

Explanation:

From the question we are told that

The time taken to travel to the planet from earth is $t = 189 \ light-years$

The time to be spent on the ship is $t_{s} = 12 \ years$

Generally speed can be obtained using the mathematical relation represented below

$t_s = 2 * t * \sqrt{1 - \frac{v^2}{c^2 } }$

The 2 in the equation show that the trip is a round trip i.e going and coming back

=> $12 = 2 * 189 * \sqrt{1 - \frac{v^2}{(3.0*10^{8})^2 } }$

=> $v = 2.999 *10^{8} \ m/s$

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Describe how to measure the internal diameter of a beaker using a Vernier caliper?

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Answer:

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Explanation:

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PLEASE MARK ME AS BRAINLIEST

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The thymus gland plays an important role in the developing immune system of a child. It makes infection-fighting lymphocytes cal

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give brainliest please

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T- lymphocytes or T cells

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