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There is no difference between the static charges generated by rubbing rods with fur or silk and the charges that flow(from battery) through wires in an electric circuit. Why there is no difference?
A certain defibrillator sends 0.12 C of charge through the heart. How much energy is released when it discharges
A 22-L sample of air at 298K contains 0.10 grams of water vapor. What is the relative humidity of the air
A bullet of mass 0.0022 kg initially moving at 503 m/s embeds itself in a large fixed piece of wood and travels 0.71 m before coming to rest. Assume that the acceleration of the bullet is constant.
Show that the horizontal resultant of these two forces on the lamp is zero. Work out the weight of the lamp.
An unknown substance has a mass of 0.125 kg and an initial temperature of97.5°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at25.1°C. calculate the specific heat of the unknown substance
A person who weighs 715 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. find the area of contact between each tire and the ground
Suppose one gallon of gasoline produces 1.1 x 108 J of energy, and this energy is sufficient to operate a car for twenty miles. how many miles could the car go with that energy
An object moves with constant acceleration 5.00 m/s2 and over a time interval reaches a final velocity of 11.2 m/s. (a) If its initial velocity is 5.6 m/s, what is its displacement during the time interval?
An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in a time interval of length 4.00 s. Find the number of revolutions made by the motor in the time interval of length 4.00s
A 20.0-kg sled is being pulled across a horizontal surface at a constant velocity. Determine the coefficient of kinetic friction
What is relative velocity
Dimitri walks 27.66 m due north, 40.58 m due east, and then 17.98 m due south. What is the magnitude of his displacement
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