Suppose an airplane traveling in a circle at 135 m/s can turn in a circle with as much as 58.8 m/s² of centripetal acceleration. How big will the radius of this circle be? A-7909
B-2.29
C-308m
D-1060000

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?