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An 8-kg collar C can slide without friction on a horizontal rod between two identical springs A and B to which it is not attached. Each spring has a constant of 600 N/m. The collar is pushed to the left against spring A, compressing that spring 20 mm, and released in the position shown. It then slides along the rod to the right and hits spring B. After compressing that spring 20 mm, the collar slides to the left and hits spring A, which it compresses 20 mm. The cycle is then repeated. Determine
(a) the period of the motion of the collar,
(b) the position of the collar 1.5 s after it was pushed against spring A and released. (Note: This is a periodic motion, but not a simple harmonic motion.)
A 539 Hz sound wave travels through a substance. What is the speed of sound in the substance
A horizontal force of 822 N is needed to drag a crate across a horizontal floor with the constant speed. You drag the crate using a rope held at an angle of 34° (from the horizontal).
A sump pump is draining a flooded basement at the rate of 0.600 L/s, The water enters a hose with a 3.00 cm inside diameter and rises 2.50 m above the pump. What is its pressure at this point
A 150 N force pushes down perpendicular to the left end of a beam. A 15N force pushes down on the right end of a beam. Where does a pivot need to be placed under the beam to achieve rotational equilibrium?
q1. an ideal gas is expanded isothermally from 20 l to 30 l. throughout this process 6 j of energy is expended by the
A turntable is a uniform disc of mass 1.2 kg and radius1.3 *10^-1 m . The turntable is spinning at a constant rate of f0 = 0.5 Hz. What is the magnitude of the frictional torque
A parallel- plate capacitor has plates of area .035 m^2 with a separation of 2.0 mm. The space between the plates is filled with a dielectric with k=4.5, What is maximum energy can be stored in the capacitor
The hot-water needs of a household are met by a 75-L electric water heater whose heaters are rated at 1.6 KW. The hot water tank is initially full with cold water at 20C at a rate of .078kg/s. After a shower period of 12 min, the water temperature..
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
A 250 - ? resistor is connected in series with a 4.80 - ?Fcapacitor. The voltage across the capacitor is vC=(7.60V)?sin[(120rad/s) t ]. Derive an expression for the voltage VR across the resistor
jupiter has a mass that is roughly 320 times that of the earth and a radius equal to 11 times that of the earth. What is the acceleration due to gravity on the surface of jupiter
If the end of the crutch is a circle of radius 1.0 cm without the tip, and the tip is a circle of radius 2.5 cm, by what factor does the tip reduce the pressure
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