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1) Does the law of reflection apply to microwaves when they strike a metallic plate? Explain.
2) Does the law of refraction apply to microwaves when they strike a prism? Does this produce constant values? Explain.
To throw the discus, the thrower holds it with a fully outstretched arm. Starting from rest, he begins to turn with a constant angular acceleration, what will be the speed of the discus at release
A 1000 kilogram wrecking ball hangs from a 15 meter long cable. Find by how much has the gravitational potential energy of ball changed
An unstable particle called the pion has a mean lifetimeof 25 ns in its own restframe. What is the mean lifetime of the pions as measured in thelaboratory frame
Plane waves of wavelength 455 nm are incident on a single slit of width .24 mm. A viewing screen is 6.0 meter away, what will the spacing (in meters) between the two first order minima
A 0.25-kg block rests on a friction-less wedge that has an inclination of 71 degrees and acceleration to the right such that the mass remains stationary relative to the wedge. Find the acceleration
Find the frequency of revolution of an electron with an energy of 500 eV in a magnetic field of 41.0 µT. Hz (b) Calculate the radius of the path of this electron if its velocity is perpendicular to the magnetic field. m
on a day when the temperature is 20 degrees c a child steals your tuning fork of frequency 512 hz begins ringing it and
A ray in air is incident on a glass plate whose index of refraction is 1.42, the angle of incidence is 30°. What is the angle of refraction
A 60 kg person jumps from rest off a 5m high tower straight down into the water. obtain the average force that the water exerts on the diver
A small 1.85-GBq 198Au source (maximum beta-particle energy0.961 MeV, average 0.315 MeV) is enclosed in a lead shield justthick enough to absorb all the beta particles. a) Estimate the energy ?uence rate due to bremsstrahlung ata point 50 cm away.
To avoid hitting a pedestrian, a car driver slams on her brakes and comes to a complete stop after skidding 16 m. find the speed of the car when the brakes were applied
At the time this problem was written, the price of gold was $411 per ounce, while that of platinum was $884 an ounce, How much would a platinum nugget of this size be worth
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