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A 7.0-mm diameter hole is 1.0m m below the surface of a 2.0m diameter tank of water. What is the rate, in mm/min, at which the water level will initially drop if the water is not replenished?
How much work is done by an applied force that moves two charges of +6.8 µC that are initially very far apart to a distance of 5.3 cm apart?
A 1.5-H inductor is connected in series with a 200-Ω resistor through a 15-V dc power supply and a switch, what is the maximum energy stored by the inductor
A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 590 N. Determine the magnitude of acceleration of the elevator
a square loop of wire of side L = 0.25m and resistance R = 0.2 ohms. A constant magnetic field B1 points through the left half of the loop in the negative z direction, What is rate of change in flux through the loop
A mass m is attached to an ideal cord of length L (figure at left). What is the tension in the cord at that moment
A major motor company displays a die-cast model of its first automobile, made from 5.60 kg of iron. To celebrate its hundredth year in business.
A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 3.00 10-23 kg·m/s from 1.30 10-23 kg·m/s in a time of 6.80 10-6 s. What is the magnitude of the electric field?
A portable 3.5 kw wate heater is immersed for 3 minutes in a plastic filled with 20 kg of water at 20C. what will be the final temperature of the mixture given specific heat of water at 4186 j/gkC.
An ideal gas is taken through a quasi-static process described by P = alphaV2, How much work is done on the expanding gas in this process
A metal rod is 40.127cm long at 20.3 oC and 40.149cm long at 45.0 oC. Calculate the average coefficient of linear expansion of the rod's
An archer fires an arrow horizontally by pulling the bow string back a distance of 0.47 m before releasing the arrow which has a mass of 0.030 kg, how much work does the archer do on the system
A human-sized version of the popular "hamster wheel" is shaped like a cylindrical shell and has a radius of 2.25 m. A person running on the wheel applies a horizontal force of 148 N to the bottom of the wheel. What torque does he supply
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