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The electric potential energy stored in the capacitor of a defibrillator is 100 J, and the capacitance is 96 F. What is the potential dissimilarity across the capacitor plates?
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
A rifle with a weight of 40 N fires a 4.5-g bullet with a speed of 230 m/s. Find the recoil speed of the rifle
The position of a particle is given by the expressionx = (6.00 m) cos(4.00πt + 2/5π), where x is in meters andt is in seconds. Determine the phase constant.
a rubber raft of mass 3m floats past a dock at 1 msec toward the east. a girl of mass 2m runs down the dock and jumps
A log floats in a river with 1/5 of its volume above the water. Density of water is 1000 kg/m, how much of the volume is now above the water
A football player with a mass of 87 kg and a speed of 2.1 m/s collides head-on with a player from the opposing team whose mass is 120 kg, Find the speed of the players after the collision
A flight attendant pulls her 63N flight bag a distance of 308m along a level airport floor at a constant velocity. The force she exerts is 45N at an angle of 57° above horizontal. Find the work she does on flight bag.
When UV light of wavelength 260nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.20eV. What is the work function of the metal
Two positive charges of 1.7e-10 C are placed on the x axis at distances +20 cm and -20 cm from the origin, respectively. A third positive charge of 1.5e-11 C can be moved along the y axis. At what value of y the electrostatic force on the third charg..
The wheel of a car has a radius of 0.360 m. The engine of the car applies a torque of 426 N·m to this wheel, What is the magnitude of the static frictional force
A figure skater begins spinning counterclockwise at an angularspeed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
Find the magnitude of the total force of the traction apparatus applied to the leg, assuming ? = 20°, the weight of the leg is 19 N and the weight hanging from the traction apparatus, m, is also 19 N
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