Physics: Aturnip is dropped from a height of 70 meters. how long does it take to hit the ground?

Aturnip is dropped from a height of 70 meters. how

Ответ:

Kimbeeeerly7631

12.03.2022

We have the equation of motion $s = ut + \frac{1}{2} at^2$ , where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.

Here displacement = 70 m, Initial velocity = 0 m/s, acceleration = 9.81 m/s^2

Substituting

$70 = 0*t+\frac{1}{2} *9.8*t^2\\ \\ 4.9t^2 =70\\ \\ t =3.78 seconds$

So a turnip is dropped from a height of 70 meters will take 3.78 seconds to reach the ground.

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Ответ:

ballerthesavage3287

16.04.2020

Physics

145 ° C

Explanation:

Using the expression

$V_{rms} = \sqrt{\frac{3RT}{M} }$

where T = 17 ° C = (273 + 17) K

= 290 K

$V_{rms} = 1.2$

So; At what temperature will its root-mean-square speed (thermal speed) be 1.2 times its value at 17.0 deg C?

What this implies is that:

$\sqrt{\frac{3RT}{M} }= 1.2 \sqrt{\frac{3*R*290}{M} }$ where R & M are constant

T = 144.6 ° C

T = 145 ° C

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Aturnip is dropped from a height of 70 meters. how long does it take to hit the ground?

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