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The small piston of a hydraulic lift has a raduis of 1 in and the large piston has a radius of 5 in. compressed air is available at 80lbs/in^2 about atmospheric pressure. What is the weight of the heaviest vechicle that can be lifted?
Water has a specific heat capacity of 4186 J/kg C. A tank contains 500 kg of water at 10 C. what is the cost of heating the water
two identical charged objectsare hanging from 26.8 cm threads from the same point on the cieling. what is the charge on each object
A model rocket launches with an initial velocity of 6 m/s, at an angle of 88 degrees (with respect to the horizon). What is the maximum height attained by the rocket
How to calculate the efficient canyon albedo
An electron is accelerated from rest through a potential difference that has a magnitude of 3.00x10^7 V. What is the relativistic kinetic energy (in joules) of the electron
Over a certain region of space, the electric potential is given by: V = 3x^2 - 2xy + xyz, Find the expressions for the x, y, and z components of the electric field over this region
A loaded ore car has a mass of 935 kg and rolls on rails with negligible friction. What maximum power must the winch motor provide
The gravitational force between two electrons that are 0.97 m apart is 5.76 multiplied by 10-71 N. Find out the mass of an electron. (Use G = 6.67 10-11 N · m2/kg2.)
A sodium atom (Z = 11) contains 11 protons in its nucleus. Strictly speaking, the Bohr model does not apply, determine the corresponding radius r of the outermost Bohr orbit
The plates of a parallel-plate capacitor are 3.00mm apart, and each carries a charge of magnitude 77.0nC. The plates are in vacuum. What is the area of each plate
A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 10.0 m/s, How long is he in the air
His arm is 70 cm long and has a mass of 4.0 kg. Evaluate the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor?
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