A 6.0-kilogram mass is moving with a speed of 2.0 m/s. What is the kinetic energy of the mass?

What is the relationship between the wavelength of a wave and it's energy?

Which feature indicates that mars resides in the inner region of the solar system

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.