15. What is the temperature increase of 4.0 kg of water when it is heated by an 8.0 x 102W immersion heater for exactly 10.0 min? (Cp = 4186 J/kg•°C)

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain