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The flywheel of an automobile engine is a solid disk with a mass of 8.6 kilogram and a radius of 20 centimeter and is rotating at 3850 rpm. If the entire rotational kinetic energy of the flywheel were converted to gravitational potential energy, determine to what height would the flywheel be lifted? Suppose the flywheel is a uniform disk. m
A person swims east to west across a river that is 30 meters wide.The person swims westward (compared to the water) at constant speedof 3 m/s. The river flows south at a steady speed of 5 m/s. Notethatm even though the person is swimming west comp..
A bulldozer is pushing a car and a truck sideways. the coefficientof kinetic friction between the car's and the truck's tries and thepavement is 0.9. the car has a mass of 1.70 x 10^3 kg and the truckhas a mass of 4.2 x 10^3 kg. what force is the ..
If a 200 lb bungee jumper jumps from a bridge 150 ft and touches the top of the river. If the cord absorbs 14 percent of the energy how far will be man be at the Top of the next bounce from the river bottom.
A camera flash delivers 2.9 kW of light power for 1.3 ms. Find the total momentum carried by the flash
in a single-slit diffraction experiment, a beam of monochromatic light of wavelength 630 nm is incident on a slit of width 0.4 mm. what is the width of the central bright fringe
Three positive particles of equal charge +11 uC, are located at the corners of an equilateral triangle of side 15.0 cm. calculate direction of the net force on each particle
An object of mass 2 kg is moving east at 5 m/sec and collides with an object of 1 kg mass moving west at 4 m/sec. The objects stick together. What is their common velocity after the collision. How much kinetic energy is lost in the collision?
A solid sphere has a temperature of 408 K. The sphere is melted down and recast into a cube that has the same emissivity, What is the cube's temperature
Current passes through a solution of sodium chloride. in 1.00 secnds, 2.68 x 10^16 Na+ ions arrive at the negative electrode, what is the current in the fluid
in a student experiment a constant-volume gas thermometer is calibrated in dry ice -78.5 c. the separate pressures are
we drive a distance of 1 km at 16 kmh. then we drive an additional distance of 1 km at 32 kmh. what is our average
The time-varying current in an LC circuit where C = 11.9 µF is given by i(t) = (1.25 A) sin (1310t), where t is in seconds. What is the total energy of the circuit
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