We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? (show you work)

A tank containing liquid butane and one containing liquid propane are sitting adjacent to one another. each tank is equipped with a regulator with a pressure gauge. classify these statements as true or false.

Which phenomenon would cease to exist in the absence of this axial tilt?

Quickly spinning the handle of a hand generator, Kevan is able to light three bulbs in a circuit. When he uses two batteries instead of the generator, the bulbs are very dim.

When a cyclist rides past you on the street, this is an example of

Which of the following is an example of an allocation decision?| O A. A hub-and-spoke network is used to ship packages. O B. A telephone factory is converted to make computers. O C. An assembly line is used to build cars. O D.

What two pieces of data indicates that uranus resides in the outer layer of the solar system.

What is acceleration? a. change in velocity/change in time b. change in distance/change in time c. change in mass/change in volume d. change in pressure/change in time

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is a vector quantity speed or velocity