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A spring that is hung from the ceiling stretches 0.495 m when a 0.188 kg mass is hung from it. the spring is taken down and laid horizontal on a table and attached by its free end to a rigid wall. With the same mass attached, the spring is then compressed by 0.695 m from its rest length and released. Determine the maximum velocity of the mass in this horizontal configuration.
What is the rate of work output of a press that delivers 120 strokes per minute, each stroke providing a force of 8000 N throughout a distance of 18 mm? If the press efficiency is 90%, what average torque must be provided by a 1750-rpm driving mo..
a runner of mass m=37kg and running 2.8 m/s runs and jumps on the rim of a playground merry go round which has a moment of inertia of 383 kg.m2 and a radius of 2 meters. what is its final angular velocity
In a certain particle accelerator, a current of 0.5 mA is carried by a 5 MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
A 20 kg block is stacked on top of the 20 kg block. Both blocks are glued together. What is the magnitude F of force, acting horizontally on the two blocks, that is required to make the two blocks start to move.
A 4mC charge passes through the point (3m, 4m) at a speed of 100m/s. Find the components of the magnetic force felt by the charge
What is the magnitude of the current in the wire as a function of time?
The center fielder for the school's baseball team throws a 0.150-kg baseball towards home plate at a speed of 26.0 m/s, What is the kinetic energy of the baseball
A proton (charge = 1.6x10-19) travels through a magnetic field of 1.78T with a velocity of 2.3x105 m/sec. What is the magnitude of force experienced by the proton
A closed box is filled with dry ice at a temperature of -88.7 oC, while the outside temperature is 24.4 oC. Find the thermal conductivity of the material from which the box is made
Calculate the pressure drop for water at 100°F and 1 atm flowing at 500 lbh through a bed of 1/2-in. spheres. The bed is 4 in. in diameter and 8 in. high.
A series circuit consists of an ac source of variable frequency, a 115 ohm resistor, a 1.25 microfarad capacitor, Find the impedance of this circuit when the angular frequency of the ac source is adjusted to the resonance angular frequency
An automobile's wheels are locked as it slides to a stop from 38.6 m/s. IF the coefficient of kinetic friction is .206 and the road is horizontal
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