If we mechanically expand a gas into a larger volume, while keeping the temperature constant, what happens to the pressure? a. the pressure increases, and we can precisely predict by how much. b. the pressure remains unchanged. c. the pressure decreases, and we can precisely predict by how much.

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Which property of fossils allow scientists to determine the relative rock ages..

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?