What variables should you keep constant in initial speed

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer