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A 100.-g block hangs from a spring with k = 5.00 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 200. cm/s. What is the block's speed when the displacement from equilibrium is 30.0 cm?
Wool is rubbed against a plastic ruler. how many electrons have been transferred to the ruler
A 5.00 kg block is sliding along a flat surface when it runs into an uncompressed spring with spring constant 352 N/m. The block compresses the spring by 0.185 m before stopping. If the coefficient of kinetic friction between the block and floor is 0..
The four tires on the author's car are inflated to an absolute pressure of 2.7x10^5 Pa. obtain the contact area between each tire and the ground
The piezoelectric transducers of the ultrasound machine generatefrequencies of 7.4 MHz and 10.5 MHz. Assuming that one wavelength is the size of the smallest object that can be imaged,
The voltage from a wall plug can be described by the equation V(t)=170sin[2π(60Hz)t] V. What would you read on a DMM reading AC voltage??
An aluminum ring needs to be placed over a cylinder steel bar. At 10.00 degrees C, Find the temperature of the ring at which it fits over the bar
A 0.250 mm thick strip of calcium metal is placed in a perpendicular magnetic field of 5.00T. how many free electrons per calcium atom are there
In an L-C circuit, C=3.21*10^-6 F and L=86.0mH. What is the magnitude of the charge on the capacitor at an instant when the current in the inductor has a magnitude of .501mA
A solid spherical ball rolls 7.0 meters without slipping along a ramp inclined at 35 degrees to the horizontal
Two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by y(x, t) = 0.01 sin(44x)cos(1090t). The string has a linear mass density of 0.01 kg/m, and the tension in the string is supplied by a m..
A speeding motorist traveling with velocity Vm is spotted by a police car.find The velocity of the police car when it catches up to the motorist
He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters.
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