What is the momentum of a 2000 kg mass moving at 3 meters per second

Which statement correctly describes the relationship between frequency and wavelength?

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.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up