Aheavy flywheel rotating on its central axis is slowing down because of friction in its bearings. at the end of the first minute of slowing, its rotational speed is 0.90 of its initial rotational speed of 325 rev/min. assuming a constant rotational acceleration, find its rotational speed at the end of the second minute.

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?

At what time will the interfering waves have an amplitudeof zero?