Q1a. The nuclei of some isotopes are radioactive. Which of the following statements could apply to a radioactive nucleus? Tick one box.*
1 point
The nucleus will emit an atom.
The nucleus will emit light.
The nucleus will emit a neutron.
The nucleus will emit sound.

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