A64.8 kg astronaut is on a space walk when the tether line to the shuttle breaks. the astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 10.3 m/s, propelling the astronaut back to the shuttle. assuming that the astronaut starts from rest, find the final speed of the astronaut after throwing the tank. answer in units of m/s.

Name the non metal condut electricity

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

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