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1. A laser used in cutting or drilling metals produces 10 ns pulses at 1.00 J per pulse.
(a) If the frequency of pulses is 10 Hz (10 pulses per second), what is the average power output of the laser?
(b) What is the peak power of each pulse?
(c) If the laser beam is focused to a spot with a 10 micrometer diameter, what is the peak light intensity at the spot? Please show work.
A point charge with charge q1 = 2.00?C is held stationary at the origin, How much work W is done by the electric force on the moving point charge
The flywheel of an engine has a moment of inertia 2.40- {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
Find out the magnitude of the force exerted by the right pillar while a 90.0 diver stands at the far end of the board.
A diver is planning to salvage a Spanish galleon located in 200 feet of water. He plans to use a diving suit that will be supplied with air from a hose. Calculate which compressor should be bought by the diver for the given condition
An inductor has a 53.6-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor
A person of mass 50 kg rides a loop the loop (vertical circular track) at an amusement park. find the normal force exerted at the bottom of the loop
Twenty particles, each of mass m0 and confined to a volume V, have various speeds: two have speed v, FIND the pressure they exert on the walls of the vessel
A converging lens has a focal length of f = 22 cm. If an object is placed 42 cm from the lens, where will the image be formed
A solenoid of radius 2.4 cm has 420 turns and a length of 16 cm. Find the rate at which current must change
Spark plugs should be tightened to a specified torque of 13.8Nm. You have a wrench that is 0.25 m long, What force must you exert on the wrench
The level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, Determine the depth d of liquid in the tank?
A sphere of radius 6.21 cm and uniform surface charge density, Find the separation between the point charge and the center of the sphere
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