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The tape in a videotape cassette has a total length 221 m and can play for 2.5 h. As the tape starts to play, the full reel has an outer radius of 48 mm and an inner radius of 10 mm. At some point during the play, both reels will have the same angular speed.
What is this common angular speed? Answer in units of rad/s.
An FM signal has a carrier frequency of 200 kHz, a modulating frequency of 2 kHz, and a frequency deviation of 3 kHz. Determine the required transmission.
Two 4.0 * 4.0 square aluminum electrodes, spaced 0.80 apart are connected to a 100battery. What is the charge on the positive electrode
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 53° above the horizontal. how far is this point horizontally from the end of the ramp
A cylindrical copper cable carries a current of 1380 A. There is a potential difference of 1.6 10-2 V between two points on the cable that are 0.21 m apart. What is the radius of the cable
Suppose a beam of 5.0 eV protons strikes a potential energy barrier of height 6.0 eV and thickness 0.58 nanometer, Determine how long would you have to wait-on average-for one proton to be transmitted
biologically usefull technetium nucleuii at wt 99 have half life of 6 hours. a solution containing 10-12 gram of this
A 800-g block is dropped onto a relaxed vertical spring that has a spring constant k =240.0 N/m. The block becomes attached to the spring and compresses the spring 52.5 cm before momentarily stopping. While the spring is being compressed, what work i..
A very expensive gas is sold by the molecule, and the price is proportional the velocity of the individual molecule: price in $=v/ . If you buy a bulb of these gaseous molecules, what is the average price per molecule, and does the price depend on th..
A mass of 20g is attached to a spring, and undergoes simple harmonic motion with a period of T=0.7 s. What is the force constant of the spring
the only force acting on a 2.0 kg canister that is moving in an xy plane has a magnitude of 5.0 n. the canister
A person running a fever has a body temperature of 39.4 degrees C What is the person's temperature on the Fahrenheit scale
a proton accelerates from rest in a uniform electric field of 680 nc. at some later time its speed is 1.40 multiplied
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