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A spring is hung vertically from a fixed support. When an object of mass m is attached to the end of the spring, it stretches by a distance y. When an object of mass of 2m is hung from the spring, it stretches by a distance 2y. The same spring is then set up in a pulley system as shown in the drawing. Here an object of mass m is suspended from a light rope that passes over each pulley and connects to the two ends of the spring. By what distance is the spring stretched in this configuration? Express your answer in terms of the original stretch distance y.
A person's eyeball has a diameter D (measured from lens to retina). find Where is this person's near point and far point
Suppose your favorite FM radio station broadcasts at a frequency of 107.3 MHz. Estimate What is the wavelength of this signal
A counterweight of mass m = 3.80 kg is attached to a light cord that is wound around a pulley, What is the net torque on the system about the axle of the pulley
What is the total translational kinetic energy in a test chamber filled with nitrogen (N2) at 2.22×105 Pa and 20.7°C? The dimensions of the chamber are 1.00 m × 4.30 m × 6.50 m. The ATOMIC weight of nitrogen is 28.0 g/mol, Avogadro's number is 6.022 ..
Using the equation F=m v^2/r for a force an object in circular motion. Find the radius r of motion of a m=1.6 kg ball travelling in a circular path acted upon by a centripetal force F=7N.
The wheel rotates freely about its axis and the string wraps around its circumference without slipping. Initially the wheel rotates with an angular speed w causing the block to rise in with a linear speed v. To what height does the block rise befo..
Suppose a wave of wavelength λ travels in some medium. (a) If the period of the wave is T, how far does the wave travel in a time 10T? (Give your answer in units of λ.) (b) If the wave enters a different medium, where the wave speed is twice what it ..
Assuming the Congress passes the Paycheck Fairness Act, and please list influences or consequences that the Act can bring to our country. ?short answer (In Your own Words)
It takes four hydrogen nuclei to create one helium nucleus in the proton-proton chain, How much mass is converted into energy to create four helium nuclei
a block of mass 5.0 kg is pulled across a horizontal surface at a constant speed by a force 14 n directed at 35 degrees
A particle has a charge of q = +5.9 μC and is located atthe orgin. As the drawing shows, an electric field of E x = +233N/C exists along the x axis. A mangnetic field also exists, andIt's x and y components are Bx = +1.5 T and By = +1.3 T.
Alpha decay is nuclear decay in which a helium nucleus is emitted. If the helium nucleus has a mass of 6.646 x 10-27 kg and is given 3.00 MeV of kinetic energy, what is its velocity
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