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A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. Directly below on the floor is a stationary 659-Hz source of sound. The microphone vibrates up and down in simple harmonic motion with a period of 2.28 s. The difference between the maximum and minimum sound frequencies detected by the microphone is 1.99 Hz. Ignoring any reflections of sound in the room and using 343 m/s for the speed of sound, determine the amplitude (in m) of the simple harmonic motion.
An unmarked police car traveling a constant 95 is passed by a speeder traveling 115 . Precisely 1.00 after the speeder passes, how much time passes before the police car overtakes the speeder
A battery has three cells connected in series, each with an internal resistance of 0.014Ω and an emf of 2.00 V. How much current is in each cell
A current of 0.500 A flows through an aluminum wire. The aluminum wire has a length of 2.00 m, what is the electron drift speed in the wire
a 12.0 kg mass lies at x=-80.0 cm. A 21.0 kg mass is at x= 70.0 cm. The 12.0 kg mass is not moved to a different point on the x-axis. There is not a zero net force on the 10.0 kg mass. What is the new location of the 12.0 kg mass
compute the distance x the spring was compressed.
Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.7° below the horizontal. determine the car's position relative to the base of the cliff
Suppose that the net horizontal force is as a result of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2.
q1. a weight of 1200 n rests on a lever at a point 0.50 m from a support. on the same side of the support at a distance
In order better to map the surface features of the Moon, a 379-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.21 × 10^2 km. Calculate the satellite\'s gravitational potential energy
q1. a chair of weight 74.0 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
The coefficient of static and kinetic frictions between a 3 kg box and a desk are .4 and .3 respectively. What is the net force on the box when a 10 N horizontal force is applied to the box
A 13? F capacitor is joined in series with a 35? F capacitor, What is the potential difference across the first capacitor
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