A constant force acts for a time Δt on a block that is initially at rest on a frictionless surface, resulting in a final velocity V. 1)Suppose the experiment is repeated on a block with twice the mass using a force that’s half as big. For how long would the force have to act to result in the same final velocity?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Describe the path of the electric current through a circuit?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?