Answer : The rocks and debris would never accrete into a planet.
Explanation : Gravity is an attraction force and dependents on the mass of the objects but in the absence of the force the rocks and debris would not come together to form a clump.
So, we can say that in the absence of gravity, the rock and debris would never accrete into a planet.
Answer:
(a) Relative speed of Sam = -7 mph
(b) Relative speed of George = 7 mph
Explanation:
We have given speed of Sam 65 mph in north direction.
And speed of George is 72 mph also in north direction
We have find the relative velocity of both Sam and George
(a) Speed of Sam relative to George = speed of Sam - speed of George = 65 -72 = -7 mph
(b) Speed of George with respect to Sam = speed of George - speed of Sam = 72-65 = 7 mph
Answer:
D. Stored Energy
Explanation:
Think of it this way, potential energy is the energy dependant on the<em> </em>objects<em> </em><em>position </em>(PE=mgh). Say you are on a diving board (my fave example), when you are standing on the edge about to jump you have the potential to fall or move because you can go from a) the top to b) the pool. When you are in the pool you're already there, so there is no more potential. Remember that, once you jump, you have kinetic energy (KE=1/2mv^2), or the energy of motion and no longer PE.
Answer:
he string has POTENTIAL ELASTIC energy
Explanation:
he catapult is a very good example of energy transformations.
Initially when the string is taut it has an elastic potential energy, when releasing the lever it is transformed into cinetic energy in the ball until it shoots out.
Consequently the string has POTENTIAL ELASTIC energy
Answer:
The volume of 3200 kg of petrol is 4 m^3.