A10 m long clothesline is strung so that it is perfectly horizontal. when a shirt is hung in the exact center the line sags to create an angle that is 1 degree below the horizontal on each end. how far below the original height of the line is the center of the clothesline

Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

What is a subatomic particle with a negative charge and very little mass?