How does conserving and recycling paper manage energy resources?
a. paper that has been used can be burned to produce energy
b. making paper requires energy and uses up natural resources
c. recycling paper increases the amount of waste in landfills
d. using less paper means more trees can be used as an energy resources

If it takes 200 joules of energy to lift a bucket of water 3 meters in 2 seconds, how much power would be required to do the same amount of work in 5 seconds?

When a charged balloon sticks to a wall, the downward gravitational force is balanced by an upward static friction force. the normal force is provided by the electrical attraction between the charged balloon and the equal but oppositely charged polarization induced in the wall's molecules. if the mass of a balloon is 1.2 g, its coefficient of static friction with the wall is 0.71, and the average distance between the opposite charges is 0.80 mm, what minimum amount of charge must be placed on the balloon in order for it to stick to the wall? express your answer to two significant figures and include appropriate units.

Pearl labels a diagram of a charged capacitor as shown. which change would correct the error in the diagram? changing +2q to +q changing +2q to –2q reversing the direction of the arrows reversing the labels for conductors and insulator