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3 years ago

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a meteor Falls towards Earth's surface given that the acceleration due to gravity is 9.8 m/s^2 what is the meteors potential ene

rgy if it has a mass of 20kg at an altitude of 500

1 answer:

ser-zykov [4K]3 years ago

5 0

Answer: It’s 98,000

Explanation: Just did it on apex

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The period of a pendulum may be decreased by

jok3333 [9.3K]

Answer:

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Find the gravitational force between Earth (5.97 x 1024 kg) and the Sun (1.99 x 1030 kg) knowing they are 1.48 x 1011 m apart.

guapka [62]

Using the gravitational force of F= G(m1*m2/r^2)

m1= 5.97 x 10^24 kg (Earth)

m2= 1.99 x 10^30 kg (Sun)

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G is a known value, it is 6.672 x 10^-11

All units are proper. Therefore plug in the values and you get 3.16 x 10^22 N.

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4 years ago

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3 years ago

A ski jumper starts from rest from point A at the top of a hill that is a height h1 above point B at the bottom of the hill. The

Illusion [34]

Answer:

$v_i = 44.3 m/s$

Explanation:

As we know that here no friction force is present on the skier so we can say that total mechanical energy is conserved here

so we will have

$\frac{1}{2}mv_i^2 + mgh_1 = \frac{1}{2}mv_f^2 + mgh_2$

now we will have

$h_1 = 0$

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$h_2 = 10 m$

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3 years ago