Car has mass 2000 kg goes on the inside of a vertical loop with height 20 m. if the car survives the loop, then what is the minimum speed needed at the top of the loop?

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

The two required components for a generator

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque