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A high-energy pulsed laser emits a 1.0-ns-long pulse of average power 3.4 *10^11 W. The beam is 2.1*10^-3 m in radius.
(a) Determine the energy delivered in each pulse.
_________340______ J
(b) Determine the rms value of the electric field.
___________________V/m
choose one part of the photo-electric experiment that cannot be explained by assuming that light is a wave. why do we
A curve in a highway has radius of curvature 110 m and is banked at 3.3°. On a day when the road is icy, what is the safest speed to go around the curve
A slender rod with a length of 0.300m rotates with an angular speed of 9.00 rad/s about an axis through one end and perpendicular to the rod. What is the induced emf in the rod
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 5.90 m/s up the incline. Determine the initial speed of the second sled
An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
at a junction in an a-c circuit a single current divides into two seperate currents I1=10,, I2=5, where I1 lags I2 by 30, use comlex numbers to represent currents.
A 60kg bicyclist rides his 7.8kg bicycle with a speed of 16m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
A 60·kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 340·N. What is the final speed of the crate
A 0.24 meter stick balances at its center. If a necklace is suspended from one end of the stick, the balance point moves 8 toward that end. Is the mass of necklace more than, less than, or the same as that of the meter stick.
how much work is required to accelerate a proton from rest up to a speed of 0.957c, what would be the momentum of this proton
One ton of coal is burned by a power plant every minute. The energy produced when one kg of coal is burned is 3.2 x 10^7 joules. calculate the efficiency of the power plant
q1. a sailboat is running along a straight course with the wind providing a constant force of 55 lb. the only other
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