Determine the energy conversions that take place in the following: light bulb, firework, flute, leaf, hair dryer.

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

How do the kidneys affect homeostasis

Frequency of electromagnetic waves that a radio station is assigned is called