When riding a roller coaster, you go up and down many hills. When do you have the least amount of kinetic energy?

A small immersion heater can be used in a car to heat a cup of water for coffee or tea. If the heater can heat 120 mL of water from 25 ∘C to 95 ∘C in 7.5 min. Assume the manufacturer's claim of 45 % efficiency.

What is the median of the following numbers: 2, 5, 1, 1, 9, 1, 2

What are discretionary calories?

What is gravitational potential of a motionless 20kg rock that is 100m above the surface of the earth

The ability of a singer to shatter glass is due to: bending of a wave around an obstacle

The coefficient of performance of a refrigerator is 6.0. The refrigerator's compressor uses 115 W of electric power and is 95% efficient at converting electric power into work.

How high does the atmosphere extend from the earth

What is the equivalent resistance of a circuit that contains four 75.0 resistors connected in series to a 100.0 V battery?

Amplitude means that a note has a high pitch. true or false

3. As part of an engineering team at Space-X designing microcircuitry to control rocket launch angle, you must assess the power budget needed to operate 4 fin-control systems. Each system requires 0.16 micro Amperes for circuits with 3.