Asailboat moves north for a distance of 10.00 km when blown by a wind 30° east of south with a force of 5.00 × 104 n. how much work was done by the wind?

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?

How many astronauts have walked on the moon?