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Question: On a certain game show, contestants spin a wheel when it is their turn. One contestant gives the wheel an initial angular speed of 3.40 rad/s. The angular acceleration of the wheel is -0.736 rad/s2.Through what angle has the wheel turned when its angular speed is 2.55rad/s?
Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 18.0cm and carries a clockwise current of 14.0 A, as viewed from above, and the outer wire has a diameter of 38.0cm .
An AC generator supplies an RMS voltage of 220 V at 60.0 Hz. It is connected in series with a 0.520 H inductor, a 3.50 ?F capacitor and a 363 ? resistor. What is the impedance of the circuit?
The nucleus of the hydrogen atom has a radius of about 1.1 Ã- 10-15 m. find the volume of the nucleus
A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.60 cm. The hose ends with a nozzle of diameter 2.20 cm.
A helium nucleus (charge +2e) moves through a potential difference V = ?0.40 kV. Its initial kinetic energy is 3.40 10-16 J. What is its final kinetic energy
A 5 ohms resistor is in SERIES with a 25 ohms resistor, and the combination is connected to a 10V battery. What is the equivalent resistance of the series combination
A Carnot engine is operated between two heat reservoirs at temperatures of 300K and 400K.
A screen is placed 1.0 meter away from the slits. Initially, you measure the interference pattern from the 2 slits on the screen. You then place the guanine film directly behind one of the slits, Determine the thickness of the guanine film
Since Selma had so much fun, Arnold decides to take up sky diving as well. He falls out of the plane (with a parachute) and after a long time reaches a roughly constant speed of 55m/s. How far did he drop during that time
A vertical straight wire carrying a 9.0 A current exerts an attractive force per unit length of 7.0X10^-4 N/m on a second parallel wire 8.0 cm away
A ball rolls horizontally with a speed of 9.0m/s off the edge of a tall platform. what is the height of the platform
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the speed at which the rock is launched
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