Match the term to its definition. a. conduction heat flowing when a liquid or gas carries the heat b. convection heat flowing between two objects that are touching each other c. radiation heat flowing in waves

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.

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.