Which unit of heat was originally defined in terms of the Fahrenheit temperature scale, not the Celsius scale?

British Thermal Unit

joule

kilocalorie

calorie

Convection currents are caused by differences in what two things?

A 3-phase motor is connected to a 440V line and draws a current of 5A. If the power factor of the motor is the highest two digits in your KSU in percent (e. g.

Which of the following is the most correct statement about a gas? A - a gas is not affected by changes in pressure B - a gas holds its shape C - a gas has very little thermal energy D - a gas takes the shape of its container

Is eating a sandwich 100% efficient

The temperature in degrees celsius can be converted to degrees celsius

A 50 kg man stands on the surface of a frozen pond. In order to get to the side of the pond he throws his 1 kg shoes at a speed of 10 m/s. After that what's the speed of the man? (neglect all frictions)

What is the definition of matter

Wavelength of a sound wave decreases so that it has a higher frequency. Which characteristics would you also expect to change? A) color B) volume C) pitch

Waves on a pond are an example of which kind of wave? a. sound b. surface c. deep water d. non-mechanical

What does a velocity vs time graph look like for constant velocity if the speed is 2m/s. And the time is not given.