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The large blade of a helicopter is rotating in a horizontalcircle. The length of the blade is 7.64 m, measured from its tip tothe center of the circle. Find the ratio of the centripetalacceleration at the end of the blade to that which exists at apoint located 1.62 m from the center of the circle.
The speed of sound in Helium is 1010 m/s.Suppose you use a tuning fork with a frequency of 522 HZ. What would be the separation of the 2 maxima in a standing wave apparatus if the tube were filled with helium gas?
At a given instant an 56 mH inductor stored an energy of 89 µJ. What is the current in the inductor at this instant
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
A gry is an old English measure for length, defined as 1/10 of a line, where line is another old English measure for length, defined as 1/12 inch. A common measure for length in publishing business is a point, defined as 1/72 inch. What is an area..
A 3.53kOhm resistor is connected to a generator with a maximum voltage of 121V. Find the average power delivered to this circuit
A fisherman reels in 16.0 m of linewhile pulling in a fish that exerts a constant resisting force of20.0 N. how much work is done on it by the tension in the line
A piece of iron isheated with a torch to a temperature of 6000 K. How much moreenergy does it emit as blackbody radiation at 6000K than it does atroom temperature, 300 K?
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm, How many wavelengths are found within the laser pulse
Electricity and process heat requirements of a manufacturing facility are to be met by a cogeneration plant consisting of a gas turbine and a heat exchanger for steam production.
consider a 1000-w iron whose base plate is made of 0.5-cm-thick aluminum alloy 2024-t6 rho 2770 kgm3 and crho 875
find the mass of Earth from the period T and the radius r of the Moon's orbit about the Earth. T=27.3 days and r=3.82E5 km. suppose the Moon orbits the center of Earth rather than the center of mass of the Earth-Moon system.
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. What percentage of the rock is gold by mass
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