You will have to lift a heavy box. the force of gravity pulls it downwards with a force of 500 n .your father applies an upward force of 220 n how much force you will have to apply to lift it up

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank