Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

plz mark brainloest

4 0

3 years ago

The world record for pole vaulting is 6.15 m. If the pole vaulter’s gravitational potential is 4942 J, what is his mass?

N76 [4]

From the calculations, the mass of the pole is 82 Kg.

<h3>What is potential energy?</h3>

The term potential energy has to do with the energy that is possessed by a body by virtue of its position.

Given that;

height = 6.15 m

PE = 4942 J

mass = ??

g = 9.8 m/s^2

Now

PE = mgh

m = PE/gh

m = 4942 J/9.8 m/s^2 * 6.15 m

m = 82 Kg

Learn more about potential energy:brainly.com/question/24284560?

#SPJ1

8 0

2 years ago

Based on the diagram below, rank the three objects from least dense to most dense

Elodia [21]

I believe it is c because the least dense would be on top. so x is least dense, then y, and then z

6 0

3 years ago

How far from a -7.80 μC point charge must a 2.40 μC point charge be placed in order for the electric potential energy of the pai

Naddik [55]

Answer:

Distance between two point charges, r = 0.336 meters

Explanation:

Given that,

Charge 1, $q_1=-7.8\ \mu C=-7.8\times 10^{-6}\ C$

Charge 2, $q_2=2.4\ \mu C=2.4\times 10^{-6}\ C$

Electric potential energy, U = -0.5 J

The electric potential energy at a point r is given by :

$U=k\dfrac{q_1q_2}{r}$

$r=k\dfrac{q_1q_2}{U}$

$r=9\times 10^9\times \dfrac{-7.8\times 10^{-6}\times 2.4\times 10^{-6}}{-0.5}$

r = 0.336 meters

So, the distance between two point charges is 0.336 meters. Hence, this is the required solution.

8 0

3 years ago

Which is heavier, 1 m3 of steel or 1 m3 of aluminium?​

Which is heavier, 1 m3 of steel or 1 m3 of aluminium?