A spring with spring constant of 33 N/m is stretched 0.15 m from its equilibrium position. How much work must be done to stretch it an additional 0.072 m? 1. 0.420 J 2. 0.486 J 3. 0.552 J 4. 0.398 J 5. 0.376 J 6. 0.464 J 7. 0.574 J

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

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.