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A computer disk rotates at a constant angular speed of 34.1rad/s while being read. when searching for a file, the disk spins for 0.892s.
a) what is the angular displacement of the disk during this time?
b) Through how many revolutions does the disk turn during this time?
at the start of a trip a driver adjusts the absolute pressure in her tires to be 2.85e5 pa when the outdoor temperature
you have two capacitors one with capacitance 19.5 of and the other of unknown capacitance. you connect the two
Rare 1918 "Jenny" stamp, depicting a misprinted, upside-down Curtiss JN-4 "Jenny" airplane, was sold at auction for $525,000. A collector uses a simple magnifiying glass to examine the "Jenny," obtaining a linear magnification of 2.4 when the stam..
One string of a certain musical instrument is 72.0 cm long and has a mass of 8.76 g . It is being played in a room where the speed of sound is 344 m/s . A)To what tension must you adjust the string so that, when vibrating in its second overtone, i..
a capacitor has a capacitance of 7.38 . what amount of excess charge must be placed on each of its plates to make the
Objective questions based on momentum and force.
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops?
Three metal fishing weights, each with a mass of1.00x102g and at a temperature of 100.0oC,are placed in 1.00x102g of water 35.0oC. The final temperature of the mixture is 45.0oC. What is the specific heat of the metal in the weights?
A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and dives with the free-fall acceleration. If the pigeon is 81.5 m below the initial height of the falcon, how long does it take the falcon to intercept the pigeon..
When it passes point A, its velocity is 3.5 m/s directed as shown. The distance AP is 0.6 m and BP is 1.0 m. Find out the speed of the mass at points B and C.
A 120 V potential is applied to a space heater that dissipates500 W during its operation. What is the resistance of the heater
the core of an optical fiber has an index of refraction of 1.27 while the index of refraction of the cladding
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