Agree or Disagree.

The ozone hole devoloped over Antartica because the ozone layer there is thinner the over other parts of the earth?

Give facts for your argument.

The shopping cart is moving forward. What force moves it forward? The force of the man pushing on the handle. The force of the wheels pushing on the floor. The force of the floor pushing on the wheels.

The weight of an objects can be calculated by multiplying mass by

if the distance of separation begin two objects is doubled, is the gravitational force between the objects increased or decreased? by what factor?

Which number should be placed in the blank to make the equation balanced N2 + 02<2NO2

An astronaut has two objects that are identical in all respects, except that one is painted black and the other is painted silver. Initially, they are at the same temperature.

A swimmer jumps from a waterfall thats is 8.5 m high from the lake below. How fast must he run horizontally to dive 2.5m away from the base of the waterfall?

What happens (as far as energy goes) when a molecule of gas strikes the wall of a container?

The boom of a fire truck raises a fireman (and his equipment - total weight 280 lbf) 60 ft into the air to fight a building fire.

Two masses are separated by 1 m. suppose the masses are moved so they are 2 m apart how will the gravitational force change

Bob rubs a piece of fur on a hand rubber rod, giving the rod a negative charge. what happens?