One type of ride falls straight down for 3 seconds. During this time, the ride accelerates from a speed of 0 m/s to a speed of 30 m/s. What is the average acceleration of the ride?

Initial speed =

Final speed =

Time =

Average acceleration =

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

What kind of simple machine is a catapult?