Spaceship alpha moves at a velocity of 0.80c in the y direction. spaceship boom moves in the -x direction at a speed of 0.60c. both relative to the earth. let the earth be stationary frame k. let spaceship boom be the moving frame k'. part a) what are v, ux, and uy? part b) calculate ux' and uy' which are components of spaceship alpha's velocity in the k' frame.

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

What are similarities and differences between refraction, reflection, diffraction and absorption?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?