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A test tone used on a radio has a frequency of 993 Hz. What is the wavelength of this sound in air at average room temperature (68 oF). Record your answer to three decimal places.
An electric motor rotating a workshop grinding wheel at a rate of 1.01 102 rev/min is switched off. How long does it take for the grinding wheel to stop
calculate the average power a killer whale named Shamu with mass 8.00 × 103 kg would need to generate to reach a speed of 12.0 m/s in 6.00 s.
A fisherman notices that the first wave created by the goose reaches the shore 8.8 s after the goose first contacts the water. The distance between two wave crests is 85 cm , and in 2.0 s he sees four waves hit the shore. Determine how far from th..
A train with a total mass of 2.4 × 10^6 kg rises 715 m while traveling a distance of 64 km at an average speed of 12 km/h. Find power output of the train's engines
A long straight conducting rod (or wire) carries a linearcharge density λ of +2.0μC/m. This rod is totallyenclosed within a thin cylindrical shell of radius R, which carriesa linear charge density of -2.0μC/m.
A damped oscillator is described by the equation m [(x)\ddot] = -b [(x)\dot] - kx . What is the condition for critical damping? Assume this condition is satisfied.
A 500g ball moving at (10.0cm/s, +x) collides with an identical ball at rest.The incoming ball scatters at 30 degrees with respect to the +x axis, What is the speed of the each ball after collision
A section of copper paneling is constructed with an area of 0.85 m^2 and a thickness of 0.04 inches. If the copper paneling is initially lying on the ground and the ground is at a temperature of 4 oC and the Air is at 21.11 oC how much energy is co..
a rocket initially at rest on the ground accelerates straight upward from rest with constant acceleration 44.1ms2 . the
Object O1 is 14.7 cm to the left of a converging lens with a 10.8-cm focal length. What is the overall magnification of this system
Suppose he hits the ball with a speed of 29 m/s at an angle of 26° above the horizontal. Explain how long was the ball in flight? How far did it travel?
A physics student is standing on an initially motionless,frictionless turntable with rotational inertia 0.31kg·m2. He's holding a wheel of rotational inertia0.22 kg·m2 spining at 128 rpm about a vertical axis, as we showed inFig. 11.8.
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