A 4-N object is attached to a vertical spring and lowered slowly, the spring stretches 15cm. The original object is replaced with a new mass of 0.3-kg, and undergoes S. H.M. What is the
period of oscillation?
(Urgent taking a quiz rn)

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!