In order to increase the amount of work done, we need to: a. decrease the force applied to an object. b. decrease the time to do the work. c. increase the time to do the work. d. increase the force applied to the object. its from florida virtual school..

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.

Apropagating wave in space with electric and magnetic components. these components oscillate at right angles to each other. it may travel in a vacuum.

9) a laser pulse takes 2.56 seconds to travel from earth to the moon and back. given that the speed of light 300000 km per second, how far away is the moon? show your calculations 10) calculate the moon’s density, in g/cm^3 given the moon has a mass of 7.3 x 10^22 kg and has a radius of 1.7 x 10^6 m.