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Questions in physics

[Answered] What is the unit and tool used to measure the volume of a plastic block?

[Answered] The common name for the reflection of a sound wave is an echo.

[Answered] Barry used a ramp to transport a load to a loading truck. The ramp made the work easier by... A. increasing the size of the input force. B. reducing the input force to zero. C. changing the distance over which the input force was exerted. D. reducing the output force to zero.

[Answered] What two factors determine gravitational potential energy?

[Answered] If an object of 0.550 kg is lifted from the floor to a height of 3.50 m, how much work is done by the lifting force? What is the kinetic energy? What is the velocity?

[Answered] Is this true or false? The kinetic energy of a freely falling object decreases as it begins to fall.

[Answered] A person jogs eight complete laps around a 400 m track in a total time of 14.9 minutes. Calculate the average speed in m/s and the average velocity in m/s.

[Answered] A toy car has a mass of 1500 g. If a 3 N force is applied to the car, what will its acceleration be?

[Answered] If you free fall for 2.6 seconds, what will be your final velocity, and how far will you fall?

[Answered] A _______ is a rhythmic movement that carries energy through space or matter.