Which of the following is not a reason fluorescent lamps are advantageous over incandescent lamps? a. fluorescent lamps operate at a higher temperature than incandescent lamps. b. fluorescent lamps are more efficient than incandescent lamps. c. fluorescent lamps produce light with less glare than incandescent lamps. d. fluorescent lamps dissipate more energy as light instead of heat than incandescent lamps. ( penn foster exam )

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Ways that industry and agriculture use physical properties to separate substances

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.