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Two polarizers are oriented at 42o to each other and apolarized light is incident on them. If only 16 percent of thelight gets through both of them, what is the angle between theinitial polarization direction of the incident light and the firstpolarizer?
one recent study has shown that x rays with a wavelength of 0.0050 nm can produce significant numbers of mutations in
Explain how does a magnitude of the electrical force between a pair of charged particles change when they are brought to half their original distance of seperation?
You charge an initially uncharged 62.7-mF capacitor through a 46.9-? resistor by means of a 9.00-V battery having negligible internal resistance. Find the time constant of the circuit. What is the charge of the capacitor 1.45 time constants after the..
Binoculars denoted as 7 x 50 have a total magnification of 7 times and objective lenses of 50- mm diameter. What is the focal length of the eyepiece if the objective focal length is 25.5 cm?
A beam of pions (Pi-mesons, with rest energy m(Pi)c^2=140 MeV) consisting of 10^10pions/cm^2s moves with speed such that the total energy of each pion is 10^5 MeV. What is the pressure the beam exerts on a surface that absorbs it and brings it to res..
You're making delieveries to several different stops, each several miles from the next. Find the vector displacement of your whole trip
A ball has a diameter of 3.90 cm and average density of 0.0845 g/cm3. What force is required to hold it completely submerged under water
A photon of red light (wavelength = 710 nm) and a Ping-Pong ball (mass = 2.20 x 10-3 kg) have the same momentum. At what speed is the ball moving
Communication satellites are geosynchronous, meaning that they have a rotational period equal to one day. what is the altitude of a geosynchronous satellite above the Earth's surface in kilometers
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph...
An air-core solenoid with 80 turns is 10.64 cm long and has a diameter of 1.09 cm. How much energy is stored in its magnetic field when it carries a current of 0.44 A
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