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Circular Motion: A string under tension of 50.0 N is used to whirl a rock in a horizontal circle of radius 2.5 m at a speed of 20.4 m/s on a frictionless table. The string passes through a small hole in the table at the center of this circle. As the string is pulled in, the speed of the rock increases. When the string is 1.00 m long and the speed is 51.0 m/s, the string breaks. What is the breaking strength, in Newtons, of the string?
A railroad locomotive with a mass of can exert a force of. At what rate can it accelerate when pulling a train
What was the speed of the car when the brakes were applied.
A bar magnet is oriented with its magnetic dipole moment at 39.5° to the direction of a 0.0689-T magnetic field, causing a torque of 0.00351 N·m to act on it
You are given three capacitors, with capacitances 0.0075 µF, 12000 pF, and 0.029 µF, what is the maximum and the minimum voltage difference would they make when charged to 130 µC
A cyclist uses 27,000 joules per minute (this is about 385 food Calories per hour) to cycle at a constant pedaling rate of 450 radians per minute along a flat road using a gear ratio of 4
An AC source with Vrms = 15V is connected in series with resistor R = 15?, a capacitor C = 100?F, What is the average power dissipated from the source
A 87g arrow is fired from a bow whose string exerts an average force of 130N on the arrow over a distance of 80cm. Illustrate what is the speed of the arrow as it leaves the bow?
A charged particle of mass .0020kg is subjected to a 5.0T magnetic field that acts at a right angle to its motion. what is the magnitude of the charge on the particle
Three deer, A, B, and C, are grazing in a field. Deer B is located 64.2 m from deer A at an angle of 51.3 ° north of west. What is the distance between deers
A train is moving parallel and adjacent to a highway with a constant speed of 33 m/s. What is the speed of the car just as it passes the train
A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. What is the rate at which water flows out, in cubic meters per second
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 34.1 m/s in a time of 6.79 s
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