A heat engine has a thermal efficiency of 45%. how much power does the engine produce when heat is transferred into it at a rate of 109 kj/hr?

A ball is lodged in a hole in the floor near the outside edge of a merry-go-round that is turning at constant speed.

the gravitational force that earth exerts on the moon equals 2.03 x 10^20N. The moons mass is 7.35 x 10^22kg. What is the acceleration of the moon due to earth's gravitational pull?

A real flowing fluid A. does not experience turbulence B. has a constant density C. has a constant velocity at a given location in the flow D. exhibits viscosity

3. View the topographic map of Antarctica. Use latitude and longitude to tell the location of the following sites to the nearest 5 degrees. (Lesson 4)

A bicycle pump contains 20cm3 of air at a pressure of 100kpa the air is then pumped in a single stroke through a valve into a tyre if volume 100cm3 whihc contains air at the same pressure.

Explain the process of synaptic transmission, beginning with the neurotransmitters at the axon terminal of the presynaptic cell and ending with the impulse being sent down the postsynaptic cell.

Which of the following is a false statement about dispersion forces? View Available Hint (s) Which of the following is a false statement about dispersion forces?

Which choice defines AC and DC correctly? In AC, electrons moving in one direction. In DC, they move in one direction and then in the other direction. In DC, electrons move in only one direction.

Why a c is advantageable than dc

Which is the larger change in temperature 1 Kelvin or 1 degree Celsius