Astate patrol officer saw a car start from rest at a highway on-ramp. she radioed ahead to another officer 30 mi along the highway. when the car reached the location of the second officer 26 min later, it was clocked going 60 mi/hr. the driver of the car was given a ticket for exceeding the 60/mi/hr speed limit. why can the officer conclude that the drive exceeded the speed limit?

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

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.