What force must the people overcome in order to lift the rock? (rock on one end and two guys on the other end)

What do refrigerators and air conditioners use to move heat?

Which statement correctly describes gravity?

How much work is needed to lift a barbell that has a weight of 445 N a total of 2 meters off ground

Why the distance between two loudspeakers have to be large?

A woman exerts a constant horizontal force on a large box. as a result, the box moves across a horizontal floor at a constant speed "vo". if the woman suddenly stops applying a horizontal force to the block, then the block will

In 2016, the city of Rio de Janeiro had a population density of 5377 people/km2. What was the population density of Rio in people per square meter?

Which kingdom consists only of complex multicellular, eukaryotic organisms which must consume or ingest other organisms for nutrition?

A boy throws a ball straight up in the air with an initial velocity of V+3 mls. The ball reaches a maximum height and starts towards earth. The boy catches the ball at the same height that it left his hand. How long is the ball in the air? 6. a.

Which of the following is a complex machine? 1) piano 2) bottle opener 3) shoehorn 4) doorknob

Which process can be used to power your Home? A solar thermal energy B solar electric energy C both solar thermal energy and solar electric energy D neither solar thermal energy not solar electric energy