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Two small silver spheres, each with a mass of 10.9 g, are separated by 1.11 m. Compute the fraction of the electrons in one sphere that should be transferred to the other to produce an attractive force of 1.07*104 N (about 1 ton) among the spheres. The number of electrons per atom of silver is 47. (The molar mass of silver is 107.87 g/mol.)
A syringe has an area of 0.7 cm2 at its barrel and then narrows down to an area of 0.14 mm2 at the needle end. If a force of 5.4 N is applied to the syringe, what is the force produced at the tip of the needle?
Suppose you carry a bag of groceries weighing 151 N from your car to your kitchen, a distance of 38 m, without raising or lowering the bag. What is the work done by the force you exert on the bag
Two coins, carrying identical charges, lie 1.5 m apart on a table and a coin experiences a force of 2.0 N, How large is the charge on each
One mole of gas obeys van der waal's equation of state and allowed to expand isothermally from v1 to v2. Derive equation for the change in Gibbs free energy for such expansion.
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = ?28.0 cm). How far is the object from the converging lens
A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, as the drawing illustrates. Find the translational speed at the top
A series LR circuit with L = 20 mH and R = 2.0 k? is connected to a potential source of amplitude 5.0 V and angular frequency 200 rad/s. find the voltage across the resistor and the inductor
a 10,000kg open rail car rolls under a hopper at 1m/s. the hopper dispenses grain into the moving rail car, how much grain was loaded into the car
Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable attached to the glider. Obtain what average power must the winch supply
a blue ball is thrown upward with an initial speed of 19.6 ms from a height of 0.7 meters above the ground. 2.4 seconds
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, What is the tire pressure in pascals
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). What is the speed at which the satellite travels
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