A cupboard is placed in front of a heater. Air can move through a gap under the cupboard. Which row describes the temperature, and the direction of movement, of the air in the gap?
air temperature
air direction
A
cool
away from the heater
B
cool
towards the heater
C
warm
away from the heater
D
warm
towards the heater

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.