A. Six electrons
B. six protons
C. they are composed of two up quarks and one down quark.
Answer:
The ball rolled a distance of 54 m.
Explanation:
Given:
Initial velocity of the ball is, 
Final velocity of the ball is, 
Time for rolling is, 
The distance of rolling is, 
First, let us find the acceleration of the ball using Newton's equation of motion as:
Now, displacement of the ball can be determined using the following equation of motion:
Rewriting the above in terms of 'S', we get
Plug in the known values and solve for 'S'. This gives,
Therefore, the ball rolled a distance of 54 m.
Energy refers to the speed.So u use the formula speed=wavelength×frequency
-- There's no limit to the distance of gravitational forces.
There's gravitational force between Pluto and the lint in your
pocket ... not much, but it's there, and it can be calculated.
So there's ALWAYS gravitational force between the Earth and the
spaceship, AND ALSO between the Moon and the spaceship.
Even before it's ever launched !
-- The Earth has about 80 times as much mass as the Moon has,
so you have to be much closer to the Moon before the gravitational
forces in each direction are equal.
The free body diagram of the rock comprises the tension on the rope acting upwards and the weight of the rock acting downwards.
The tension on the supporting rope is 735 N.
The given parameters;
- <em>mass of the rock, m = 75 kg</em>
(a) The free body diagram of the rock is presented as follows;
↑ T
Ο
↓ W
Where;
<em>T is the tension on the supporting rope</em>
<em>W is the weight of the rock</em>
(b) The tension on the rope is calculated as follows;
T = W
T = mg
T = 75 x 9.8
T = 735 N
Thus, the free body diagram of the rock comprises the tension on the rope acting upwards and the weight of the rock acting downwards. The tension on the supporting rope is 735 N.
Learn more here: brainly.com/question/11599933
