Three ways we can use an electric current

A Carnot engine absorbs 1, 3 MJ of heat at 427 degree C and exhausts heat to a reservoir at 90 degree C. How much work does it do?

A force of 60 n stretches a spring 0.73 m from equilibrium. what is the value of the spring constant? a force of 60 n stretches a spring 0.73 m from equilibrium. what is the value of the spring constant? 82 n/m 44 n/m 92 n/m 67 n/m

Monochromatic light of 605 nm falls on a single slit, which is located 85 cm from a screen. The first dark band appears at 5.4 mm from the center. How wide is the slit? 0.001 mm 0.050 mm O 0.095 mm 1.50 mm

The amount of light entering the eye is regulated by the

A woman (m = 45kg) is kneeling on the shoulders of a man (m = 70kg) in pair figure-skating while both are traveling at 1.5 m/s. The man gracefully accelerates the woman forward into the air.

If you push against a stationary object for 10 seconds, you have performed an: a. eccentric exercise. b. isokinetic exercise. c. isometric exercise. d. isotonic exercise

Esulfur burns easily. Iron is attracted by magnets. the mineral made by sulfur and iron, but it does not burn and it is not attracted by magnets. is it a mixture? why? and why not?

What is most likely to be found in both a spinach cell and a muscle cell

Under what conditions might a stream's volume increase, and under what conditions might it decrease? How would the size of the sediment particles in the stream's load differ in the two situations?.

How does the electric force between two charged participles change if one particle's charge is reduced by a factor of 3?