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The stretched length of a spring is 4.28 m. A ribbon is tied aroundthe spring at a point near its center. A pulse created at one endof the spring makes 13 back-and-forth trips along the spring in6.59 s.
(a) With what frequency does the ribbon go up and down?(b) With what speed does the pulse travel alongthe spring?
A current of 13.9 A flows through an electric heater operating on 120 V. What is the heater's resistance
question 1an infinitely long uniformly charged cylinder of radius r is shown.ausing symmetry arguments sketch the shape
q1. a 4.00-kg model rocket is launched expelling 54.9 g of burned fuel from its exhaust at a speed of 690 ms. what is
An object moves uniformly around a circular path of radius 22.0 cm, making one complete revolution every 1.80 s. What is the translational speed of the object
Type A nerve fibers in humans can conduct nerve impulses at speeds up to 140m/s, How fast are the nerve impulses in miles per hour
A spectral line of sodium normally has a wavelength of 5890Angstroms. The same line measured in the spectrum of a star is at awavelength of 5625 Angstroms. At what speed in the star traveling? Is the star moving towards us or away from us?
A person sees a distant lightning strike, then 4.5 seconds later he hears the thunder clap. If it is 35 degrees Celsius, how far away was the lightning strike
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, What is the magnitude of the body's acceleration
An electron is bound in an infinite well (a box) of width 0.1nm. If the electron is initially in then n = 8 state and falls to the n = 7 state, find the wavelenght of the emitted photon
A ship sails 130 km due north from island A to island B and then 92 km, in the direction 22° south of east, to island C. Calculate the magnitude and direction of the displacement vector in the last trip
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part (1). What should be the maximum speed of the car so it can round the curve safely.
An ice chest at a beach party contains 15 cans of soda at 5°C. Each can of soda has a mass of 0.36 kg and a specific heat capacity of 3600 J/(kg·°C). Someone adds a 6.2 kg watermelon at 28°C to the chest. The specific heat capacity of watermelon is n..
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