Write a hypothesis about how the height of the cylinder affects the temperature of the water. use the "if . . then . . because . .” format and be sure to answer the lesson question: "how is potential energy converted to thermal energy in a system? ”

As the distance from a magnet increases, what happens to the magnet force?

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.