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A flywheel with a very low friction bearing takes 1.6 h to stopafter the motor power is turned off. The flywheel was originally rotating at 41 rpm.Whatwas the initial rotation rate in radians per second? Answer in units of rad/s.
How many revolutions does the flywheel make before it stops? Answer in units of rev.
an electric dipole consists of 1.30g spheres charged to -1.90nc at the ends of a 8.00cm -long massless rod. the dipole
a metal sphere of radius 5.00 cm is initially uncharged. how many electrons would have to be placed on the sphere to
A block with mass 1.871 kg sliding on a frictionless surface is attached to a horizontal spring with spring constant 11.69 N/m at the equilibrium position of the spring. The block is then pulled a distance 13.99 cm from the equilibrium point and rele..
A 25-g rifle bullet travelling 280-m/s buries itself in a 3.6-kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
a proton has mass 1.7x10-27 kg. what is the magnitude of the impulse required in the direction of motion to increase
A closely wound circular coil with a diameter of 3.60 cm has 560 turnsand carries a current of 0.560 A. What is the magnitude of the magnetic fieldat the center of the coil?
Under ambient conditions (T=300K), the intrinsic electron concentration of silicon is 1.45*10^10 cm^-3. Calculate the band gap energy of the semiconductor
A one loop circuit is connected thus: A 3.0 V source, with the + side connected to a 10 ohm resistor, how much power does the bulb dissipate
Two ice skaters, Daniel (mass 70.0 ) and Rebecca (mass 45.0 ), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, What is the magnitude of Daniel's velocity after the collision
calculate the change in potential energy of a 88.4 kg man when he takes an elevator from the first floor to 33th floor
Soda are made fizzy by the carbon dioxide (CO2)dissolved int he liquid. An amount of carbon dioxide equal to about8.0 L of carbon can be dissolved in a 2-L bottle of soda. The molarmass of CO2 IS 44g/mol.
Find the critical angle for an optical fiber whose core has n value of 1.55 and whose cladding has n value of 1.20
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