Physics, 23.07.2019 21:30, hd14yarnell

Apuck slides along an icy surface. what makes it slow down?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 04:00, idontknow11223344

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Answers: 3

continue

Physics, 22.06.2019 11:00, Arielledt10

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?

Answers: 1

continue

Physics, 22.06.2019 11:30, alexandroperez13

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

Answers: 1

continue

Physics, 22.06.2019 23:40, itzdulce

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.