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A light string can support a stationary hanging load of 24.6 kg before breaking. An object of mass m = 3.03 kg attached to the string rotates on a frictionless, horizontal table in a circle of radius r = 0.801 m, and the other end of the string is held fixed as in the figure below. What range of speeds can the object have before the string breaks?
A meter stick with a mass of 89.5 g is being supported at the 50 cm mark with a pivot that is 1.00 cm above the center of mass of the meter stick. The moment of inertia of stick about that point is 0.00746 kgm^2. What is the period of oscillation ..
q1. an object falls because of gravity at a rate of -9.80 ms2 - sign is indicative of a downward direction for 10.00
What is the radius of the curve?
A 25.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 20.00 m. When she is partway down the slide, Calculate the mechanical energy lost due to friction
Consult to explore a model for solving this problem. A person pushes on a 55-kg refrigerator with a horizontal force of -280 N; What is the magnitude of the largest pushing force
an ac power supply puts out a voltage V = 170sin(2n60t) and is connected to a resistor R = 20 ohm. what is the average power in W dissipated in the resistor
The refractive index n of glass depends on the color (wavelength) of the light passing through it. What is the angle between the blue beam and the red beam in the glass block
The magnitude of Adam's acceleration down the slide would be a = g sinθ
You go to the playground and slide down the slide, a 3.0 meter long ramp at an angle of 36 degrees with respect to horizontal. How long does it take you to reach the bottom of the slide
An undersea research chamber is spherical with an external diameter of 5.40 m. The mass of the chamber, when occupied, is 70400 kg. It is anchored to the sea bottom by a cable.
A 0.750 kg ball falls directly down onto concrete, hitting it with a speed of 12.0 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 210 mi/h in 3.00 s. Find the average acceleration of the plane
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