Sam was learning how to roller skate. He did not want to go fast. On which kind of floor surface would Sam move the slowest? A-concrete

B-carpet

C- tile

D-wood

One or more substances changing into one or more substances is an example of a

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?