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An 8.00-g bullet is fired horizontally into a 9.00-kg block of wood on an air table and is embedded in it. After the collision, the block and bullet slide along the frictionless surface together by a speed of 10.0 cm/s. What was the initial speed of the bullet?
an air-spaced fabry-perot interferometer has mirror spacing 0.15 mm and mirror reflectivity r 0.99. it is used to
An aluminum wire is 20m long and has a radius of 2mm = 2x10^-3 m. The linear limit for aluminum is 0.6x10^8 N m^-2. a.) how large a tension force must be applied to stretch the wire to its linear limit? b.) how much will the wire stretch when this fo..
If the rms value of the electric field in an electromagnetic wave is doubled, by what factor does the average intensity of the wave change
A movie camera with a (single) lens of focallength 75 mm takes a picture ofa person standing 34 m away. what is the height of the image of the person on the film
If 7.50 kg of ice at -5.00°C is added to 12.0 kg of water at 15°C, compute the final temperature. T = 0 C, How much ice remains, if any
which is basically a diskshaped grindstone of mass 1.2 kg and radius 7.30 cm which operates at 700 rev/min. When the power is shut off, you time the grindstone and find out it takes 39.0 s for it to stop rotating.
A Young physicist wants to send radio signal to two separate cities (A and B); however, the signals being sent to one city should not be perceived in the second city and vice versa. Determine the distance d between the two antennas, the phase diff..
the old baker bowl centerfield fence was about 408 feet from home plate. home run balls needed to be at least 35 feet
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 445 Hz, calculates the speed of the train
At a particular instant an electron is traveling in the +y direction, with speed 7105 m/s. find the magnitude of the magnetic force on the electron
A droplet of ink in an industrial ink-jet printer carries a charge of 2e-10 C, Find the strength of the electric field to produce this force
If a bar is used as a first class lever and the fulcrum is 15 inches from the load and48 inches from the applied effort, how much effort is requird to raise a load of 240 pounds
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