Aspring has a spring constant k of 88.0 n/m. how much must this spring be compressed to store 45.0 j of potential energy

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)