What is the impulse of a 3kg object that speeds up from rest to 20 m/s

1. in which of the following cases is the wavelength of the emitted radiation greatest? electron jumps from third orbit to second orbit. electron jumps from third orbit to first orbit. electron jumps from fourth orbit to first orbit.

On an ice rink, Manuel pushes off the wall with 540 N of force. If his mass is 72.0kg, what is his acceleration on the skates (assume that the friction is essentially 0).

What kind of water temperature lowers the dissolved oxygen

A moterbike accelerates 8m/s. What is the final velocity of the bike after 3 s?

How do you calculate the effort of a pulley?

What is s the best description of the constructive interference of light? A. two waves have the same direction of displacement. B. two waves have displacement in opposite directions. C. a longitudinal wave meets a transverse light wave D.

1875 kg car is traveling at 22 m/s. It's momentum is?

Hot air balloon rises because a) molecules become lighter when heated b) molecules move faster and farther apart when heated c) molecules are less attracted by gravity when heated d) molecules become charged and repel each other when heated

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

A person who has dissociative identity disorder: O A. cannot remember who he or she is. O B. has panic attacks when confronted. C. has two or more distinct personalities OD hears voices