Who was the first person to observe a sign of molecular motion?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

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

Five renewable energy resources are wind, sunlight, moving water and geothermal energy. question 2 options: true false