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two wires are tied to the 300 g sphere. the sphere revolves ina horizontal circle at a constant speed of 7.5 m/s. what is the tension in each of the wires? (do not assume the tension is thesame in each wire)
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 11.0 cm, giving it a charge of -13.4 µC. Find the magnitude of the electric field just inside the paint layer
Explain by how much time elapses while the auto moves the 180 ft? If the acceleration is constant, how much time elapses while the auto moves the 180 ft.
A piece of wood is 0.640m long, 0.230m wide, and 7.00×10^?2 m thick. What is the mass of this volume of lead
The bolts on the cylinder head of an engine require tightening to a torque of 92 m·N. If a wrench is L = 30 cm long, what force perpendicular to the wrench must the mechanic exert at its end? If the six-sided bolt head is 15 mm in diameter, estimate ..
a boeing 747 jumbo jet has a length of 61.3 m. the runway on which the plane lands intersects another runway. the width
A 38.00 kg girl is bouncing on a trampoline. All throughout a certain interval after she leaves the surface of trampoline, her kinetic energy decreases to 185J from 425J. How high does she rise all through this interval? Avoid air resistance.
Light is emitted from an ordinary lightbulb filament in wave-train bursts about 10 ^ -8 s in duration. What is the length in space of such wave trains
A child is playing by jumping on a bathroom scale. The mass of the child is 31 kg and when he stands on a bathroom scale, the spring inside the scale compresses 0.46 mm. what is the maximum height the child can jump on the scale
if you know the temperature of a star how would you find its wavelength? say the temperature of a star is 30000k what
A roller coaster reaches the top of the steepest hill with a speed of 4.0 km/h. Estimate its speed when it reaches the bottom
A car accelerates uniformly from rest to a speed of 35.0 mi/h in 9.0 s, find the constant acceleration of the car
A tuning fork vibrating at 666 Hz falls from rest and accelerates at 9.8 m/s 2. How far below point of release is the tuning fork when waves of frequency 626.4 Hz reach the release point? The speed of sound in air is 339 m/s.
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