rate of rotation

a diver can change her rate of rotation in the aair by "tucking" her head in and bending her knees. Let's assume that when she is stretched out straight she is rotating at 1 revolution per second. Now she goes into the "tuck and bend", effectively shortening the length of her body by half. What will her rate of rotation be now? ...continues

Gauss's Law

(See attachment for diagram and background) (a) What is the electric field inside the middle sheet? (b) What is the electric field between the left and middle sheets? (c) What is the electric field between the middle and right sheets? (d) What is the charge density on the surface of the middle sheet facing the lef ...continues

Gauss's Law

See attachment for diagram and extra info ... (a) What is the electric flux through the sphere? (Use r0 for r0, epsilon_0 for 0, and Q as necessary.) (b) What range of values does E have at the surface of the sphere?

Gauss's Law

A point charge produces an electric flux of +545 N · m^2/C through a gaussian sphere of radius 17.0 cm centered on the charge. (a) What is the flux through a gaussian sphere with a radius 34.0 cm? (b) What is the magnitude and sign of the charge?

Gauss's Law

A point charge produces an electric flux of +545 N · m^2/C through a gaussian sphere of radius 17.0 cm centered on the charge. (a) What is the flux through a gaussian sphere with a radius 34.0 cm? (b) What is the magnitude and sign of the charge?

Gauss's Law

A point charge of 3.40 nC is located at the origin and a second charge of -5.40 nC is located on the x axis at x = 1.50 m. Calculate the electric flux through a sphere centered at the origin with radius 1.00 m. Repeat the calculation for a sphere of radius 2.00 m.

Gauss's Law

See attachment for complete question ... For points far from the ends of the cylinders, determine the electric field at the following radial distances from the central axis. (a) r = 2.0 cm (b) r = 6.0 cm (c) r = 13 cm

Gauss's Law

See attachment for diagram etc for questions ... (a) Determine the total charge on the surface of the spherical cavity. (b) Determine the total charge on the outer surface of the cube.

what force must be applied

what force must be applied to a small cylinder piston with a diameter of .032m to lift a car weighing 12,000 N that is supported by the piston in a large cylinder that has a diameter of 1.4m? assume that there is an enclosed chamber in common between the two pistons and that the chamber is filled with hydraulic fluid. a.627 N ...continues

what is the height in cm

what is the height in cm of the column of mercury for a mercury barometer whan the atmospheric pressure at a certain location is 1.02 atm? The density of mercury is 13.55g/cu m. a.73.7 cm b.77.6 cm c.75.3 cm