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A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 440 Hz source of sound. The microphone oscillates up and down in simple harmonic motion with a period of 2.0s. The dissimilarity between the maximum and minimum sound frequencies detected by the microphone is 2.1 Hz.
What is the maximum speed of the microphone? What is the minimums peed?
The end of the spring is next to the 20- mark on the ruler.If a 3.0- mass is now attached to the end of the spring, where will end of the spring line up with the ruler marks?
What is the voltage of an alternator that produces a current of 0.039 A if it contains a series RCL circuit with a resistance of 300 ohm, an inductive reactance of 650 ohm and a capacitive reactance of 420 ohm?
The receiver has a 22 yard lead from the quarter back by the time he throws the ball. How fast must he run in order to catch the ball when it lands
using planck's law, Evaluate the Stefan-Boltzmann constant and Evalute the constant in the wien displacement law
a copper wire of cross-sectional area3.20 times 10-6 m2 and length 3.60 m has a current of 2.40 a uniformly distributed
The highest-energy cosmic ray ever detected had an energy of about 3.0x10^20 eV. Assume that this cosmic ray was a proton. What was the proton's speed as a fraction of c
A 50 g Super Ball travelling at 28 m/s bounces off a brick wall and rebounds at 18 m/s. A high-speed camera records this event. If the ball is in contact with wall for 5 ms, what is the magnitude of the average acceleration of the ball throughout ..
suppose you attach the object with mass m to a vert spring at rest and let it bounce up and down. you release the
an ac generator consists of 6 turns of wire. each turn has an area of 0.040m2. the loop rotates in a uniform field
From a cliff that is 9.4 m above a lake, a young woman (mass 44 kg) jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wavelength.
a golf ball is dropped from rest from a height of 8.80 m. it hits the pavement then bounces back up rising just 5.80 m
A terrestrial telescope (a "spyglass") by a diameter of 2.5cm is attached to a rifle and used for target practice with targets that are 330 m away. What is the smallest feature on the target that can be resolved by this telescope? Suppose λ = 500 n..
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