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1. If linear momentum is conserved when there is no external force applied, how is angular momentum conserved?
2. The change in angular momentum with the change in time is equal to what?
An unstretched elastic spring has a mass M = 3.75 kg and a length of l0 = 0.525 m. What is the elastic potential energy of the spring
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. How much total work is done on the object in 4.44 seconds
A point charge, q1 = +2C, is placed at the origin (0m,0m), a second point charge, q2 = -3C, is located at (2m, 0m), and a third point charge, q3 = -4C, is located at (0m, 3m)
An airplane is flying in a horizontal circle at the speed of 542 km/h. If the wings of the plane are tilted 33.0° to the horizontal, what is the radius of the circle in that the plane is flying? Suppose that the required force is provided entirely by..
define the rock's tangential deceleration. You want to visit your friend in Seattle during spring break. To save money, you decide to travel there by train. Unfortunately, your physics final exam took the full 3 hours.
You have a string with a mass of 14.1 g. You stretch the string with a force of 8.63 N, giving it a length of 1.93 m. Then you vibrate the string transversely at precisely the frequency that corresponds to its fourth normal mode, that is, at its f..
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
A disk has radius R = 1.20 cm. Its surface charge density is 1.70 x 10-6 C/m2 from r = 0 to r = R/2 and 9.10 x 10-7 C/m2 from r = R/2 to r = R, What is the total charge (in C) on the disk
The heating coil of a hot-water heater has a resistance of 20.0 and operates at 210 V. If electrical energy costs $0.080/kWh, what does it cost to raise 290 kg of water in the tank from 15 °C to 74° C.
A pitcher throws a baseball vertically upward with an initial speed of 15.0 m/s, releasing the ball when it is 2.00 above the ground, How long is the ball in the air
A simple harmonic oscillator takes 12.0 s to undergo six complete vibrations.
how to compute the fraction of silver in the crown.
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