Which planet was almost massive enough to have become a star?

Explain using examples, what is simple harmonic motion and why it is an important area of study in physics.

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

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.