What best describes the energy of a sound wave as it travels through a medium

The mass of an object with 500j of kenetic energy moving with a velocity of 5 m/s is

In a "minute to win it" game, cards are placed between cups to stack them. The contestant then pulls the card out in hopes that they will end with a set of stacked cups. Why does this work? There is no friction between the card and the cup.

During each cycle, a heat engine ejects 75 J of thermal energy for every 115 J of input thermal energy. This engine is used to lift a 345-kg load a vertical distance of 27.0 m at a steady rate of 52.5 mm/s.

The possible presence of a supermassive black hole at the center of our galaxy has been deduced from

In one cycle, a freezer uses 792 J of electrical energy in order to remove 1765 J of heat from its freezer compartment at 10.0°F.

Digitized information can be used by computers true or false

Standing on a frictionless surface (like a sheet of ice), two boys, one strong and one weak, are attempting to break a string in half by pulling on its opposite ends.

Condition for the maximum, minimum and zeroelectric field

How does force do positive work on an object?

S-waves can travel through either rock or water. a. True b. False