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a) Near the bottom of the spring, the spring only supports the mass of the mass hanger (50 g). Assuming its k value is 12 N/m, how much does it want to stretch? (Distance) b) Now, near the top, the spring has the mass hanger (50 g) plus its own weight (75 g). Now how much does it want to stretch?
An automobile with a mass of 940 kg goes around a curve with a radius of 64m.The coefficient of friction between the tires and the road is 0.700. Illustrate what is the maximum speed with which the car can go around the curve ?
The earth orbits the sun once a year (3.16X 107s) in a nearly circular orbit of radius 1.50X1011m. With respect to the sun, determine the tangential speed of the earth
A disk of radius R = 9 cm is pulled along a friction less surface with a force of F = 15 N by a string wrapped around the edge. At the instant when d = 28 cm of string has unwound off the disk, what is torque exerted about the center of the disk.
A 1kg block at the bottom of a ramp is on a compressed spring with the spring constant k=300N/m. what is the initial acceleration of the block up the ramp
An AC generator supplies an rms voltage of 120 V at 60.0 Hz. It is connected in series with a 0.350 H inductor, a 5.00 ?F capacitor, What is the peak voltage across the capacitor
An unstable particle at rest breaks up into two fragments ofunequal mass. what is the speed of the heavier fragment
a mass m of a liquid at a temperature t1 is mixed with an equal mass of the same liquid at a temperature of t2. the
An elevator has mass 740 kg, notincluding passengers. The elevator is designed to ascend, atconstant speed, a vertical distance of 20.0 m (five floors)in 15.0 s and it is driven by amotor that can provide up to 40 hp to the elevator.
An object of mass m = 5.45kg is suspended from the ceiling of an accelerating truck by a string. What is the magnitude of the tension in the string
A blob of iron sinks form the surface of earth to the center. Assume the blob does not transfer any energy to its surroundings. Assume the density of earth is uniform.
A step-down transformer has 30 turns of wire on one coil and 1200 turns on the other. what is the required rms input voltage
Two loudspeakers are placed at either end of a gymnasium, both pointing towards each other. The sound emitted by the speakers is in phase and are of frequency of 256 Hz.
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