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A) The dielectric strength of air, E = 3 x 106 V/m, is the maximum field that air can withstand before it breaks down and becomes conducting. Find how much charge can be located on a spherical conductor with a 9 centimeter radius before the field at its surface exceeds the breakdown strength of the air?
B) Find what would be the electric potential at the surface of this conductor?
A fire hose ejects a stream of water at an angle of 31.20° above the horizontal. The water leaves the nozzle with a speed of 24.50 m/s. assume that the water behaves like a projectile, how far from a building should the fire hose be located to hit..
The force involved in a collision is 1.0 × 10^2 newtons. What is the value of the change in momentum
The bones of a saber-toothed tiger are found to have an activity per gram of carbon that is 14.70 of what would be found in a similar live animal. How old are these bones.
Calculate the firm's earnings per share (EPS). Explain how large a per-share cash dividend did the firm pay on common stock during 2011?
a student builds and calibrates an accelerometer, which she uses to determine the speed of her car around a certain unbanked highway curve. what is the radius of the curve
A small rigid cylindrical vessel contains 1 kg of humid air at 80oC under a total pressure of 1 bar. The humid air inside the vessel contains 0.150 kg of water vapor. Determine the relative humidity of the air in the container.
An object of mass = 2 kg is pulled by a constant force F = 5 N oriented at an angle of 30° with respect to the horizontal, for a horizontal distance of 2 m. What is the work done by force F? Do not consider friction.
Water flows through a horizontal tube of diameter 3.0 m that is joined to a second horizontal tube of diameter 2.2 . The pressure difference between the tubes is 8.0 kpa . Find out the speed of flow in the first tube.
An airplane must reach a speed of 186mi/h to take off. If the runway is 488m long, what is the minimum value of acceleration that will allow the airplane to take off successfully.
A penny is placed at the outer edge of a disk (radius is 0.147 m) that rotates about an axis perpendicular to the plane of the disk at its center. Evaluate the minimum coefficient of friction necessary to allow the penny to rotate
Weather surveillance satellite is launched into orbit with a period of 1.8 h mass of earth is 5.98 x 10^2 second the radius of earth is 6.37 x 10^3. Find the altitude of orbit
A 30 kg girl, skating at 6 m/s, collides with her 80 kg father who is initially standing still. What is their speed after the collision
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