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An airplane propeller is rotating at 1250rpm .
a) Compute the propeller's angular velocity in rad/s.
b) How many seconds does it take for the propeller to turn through 45.0 degrees?
c) If the propeller were turning at 18.0rad/s , at how many rpm would it be turning?
d) When the propeller were turning at 18.0rad/s , what is the period (in seconds) of this propeller?
A 7.5 nC charge is located 1.8m from a 4.2 nC charge. Find out the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive.
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A 455pF capacitor is charged to 155V and then quickly connected to a 255mH inductor. Determine the peak value of the current
A bat at rest sends out ultrasonic sound waves at 50.5 kHz and receives them returned from an object moving directly away from it at 30.5 m/s
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.
An aluminum rod is 18.0 cm long at 20°C and has a mass of 350 g. If 15,000 J of energy is added to the rod by heat, what is the change in length of the rod
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, what is the area of the leaf in square meters
A 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket..
In NYU's Diffraction and interference lab for general physics 2, what are the widths given on the slide with the double slits. On the lab manual it says they were given on the slide.
What is the charge density on the surface. suppose that air resistance can be neglected.
What is the ratio of the amplitude
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