North america experienced all of the following during the last glacial period except alpine glaciers covered the rocky and cascade mountains. sea level was at least 100 m lower than it is today. coastlines were extended. the hudson bay was covered with alpine glaciers.

Jason and alejandro lift a chair 2 meters into the moving truck using 150 newtons of force. it takes them 3 seconds to lift the chair how much power did they use

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c