Which of these waves has a disturbance that is only parallel to the wave motion?

traverse, longitudinal, and surface waves

surface waves

transverse waves

longitudinal waves

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.