What type of cooling would a scientist determine formed an igneous rock found with large crystals? slow cooling medium rate cooling quick cooling super-fast cooling

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.

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

If steel is more dense that lake water, why can a boat float