Answer:
Acceleration is the change in velocity divided by time
Explanation:
This is the correct answer because distance divided by time is the position. Speed multiplied by time is the distance. And acceleration is not just velocity, but the change in velocity over time.
Answer:
Explanation:
In a conductor, electric current can flow freely, in an insulator it cannot.
Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.
Most atoms hold on to their electrons tightly and are insulators.
Answer:
second one is correct that is right
Explanation:
It s given that,
Mass of a planet,
Radius of a planet,
(1) We need to find the acceleration due to gravity for a person on the surface of the planet. Its formula is given by :
(2) The escape velocity is given by :
v = 7324.61 m/s
Hence, this is the required solution.