When a passenger in train A looks at a passenger directly across in train B it appears that train B is not moving even though both trains are moving. How does the speed od train A compare to train B

At most crime scenes, investigators will only be able to recover partial fingerprints

What is the primary cause for the change in seasons?

According to Einstein's theory, how does an increase in the number of photons affect a beam of light? The wavelength of the beam of light increases. The speed of the beam of light increases. The brightness of the beam of light increases.

Which device converts kinetic energy into electrical energy? an electric generator an electric motor a step-down transformer a step-up transformer

Let's say you place a metal tray of foam pieces on top of a Van de Graaff generator. You turn it on and nothing happens right away but in a few seconds the foam pieces begin flying out of the pan. Why does this happen? A.

A football quarterback is moving straight backward at a speed of 3.00 m/s when he throws a pass to a player 20.0 m straight downfield. (a) if the ball is thrown at an angle of 25.

Simone is walking her dog on a leash. The dog is pulling with force of 34 N to the right and simone is pulling backward with a force of 16 N

An object moves with velocity v (t) = t^2-8t+7 a) write a polynomial expression for the position of the particle at any time t greater or equal to zero.

Is a lack of thorns a mutation? (on a plant)

Why is the motion of an athlete moving along the circular path with Constant speed considered to be an accelerated motion?