A 1.0 mass is attached to a horizontal spring which undergoes SHM. The graph of EPE as a function of position show above. The total energy of the oscillating system is 0.8 J. a. What is the maximum displacement of the oscillating mass?
b. What is the potential energy at the position of 2 cm?
c. What is the kinetic energy at the position of 2 cm?
d. What is the period of oscillations?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Which best describes the difference between internal and thermal energy?

The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz