A 2 kg block of metal with a specific heat of 100 J/kgºC is dropped from rest at a height of 100 m above the ground. If half of the initial potential energy of the block is converted to heat energy in the block as it falls, what is the temperature change of the block?

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.

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Diverging mirrors and lenses always produce images