In this video, the puck sits on a room-temperature aluminum ramp. warmed by the ramp, the dry ice sublimates off the bottom of the puck and forms a thin layer of co2 gas that levitates the puck, allowing it to slide down the ramp with very low friction. this process also creates a cool and mysterious smoky appearance of the puck, perhaps contributing to einstein's excitement.

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth