a man stands on a platform scale in an elevator. the elevator moves upward, speeding up. what is the action-reaction force pair to the man’s weight?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

The least penetrating form of radiation is

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?