Acar's engine stalls going up a hill and slows down as a result. which statement describes the energies of the car? a) the kinetic energy increases and the gravitational potential energy remains the same. c) the kinetic energy decreases and the gravitational potential energy remains the same. b) the kinetic energy increases and the gravitational potential energy decreases. d) the kinetic energy decreases and the gravitational potential energy increases.

Which statement best describes how private industry decides where to spend the money on research and development

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?