Question 5 A geostationary satellite of mass 250 kg is orbiting around the earth. The earth has radius of 6.38 x106 m and mass of 5.98 x1024 kg. By using suitable diagram, determine:
a) the orbit of the satellite from the earth surface.
b) the linear velocity of the satellite.
c) the escape velocity of the satellite to escape the earth gravitational attraction.

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

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

What equation is used to calculate the weight of an object on a plant ?