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Q1. A particular guitar string is supposed to vibrate at 214 Hz, but it is measured to actually vibrate at 272 Hz. By what percentage must the tension in string be changed to get the frequency to the accurate value?
Q2. Larry leaves home at 12:04 and runs at the constant speed to the lamppost. He reaches the lamppost at 12:11, immediately turns, and runs to the tree. Larry arrives at the tree at 12:24. What is Larry's average velocity during his trip from home to lamppost, if the lamppost is 389.0 m west of home, and the tree is 670.0 m east of home?
What is an average velocity for Larry's entire run?
Which state is best illustrates kinetic friction
A plate carries a charge of -3.9 µC, while a rod carries a charge of +2.2 µC. How many electrons should be transferred from the plate to the rod, so that both objects have the same charge.
Find out the coefficient of static friction
What is the most amounts by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass .
Coherent light with wavelength 546 nm passes through two very narrow slits, and the interference pattern is observed on a screen the distance of 3.00 {rm m} from the slits. The first-order bright fringe is a distance of 4.86 {rm mm} from the center o..
What is the y component (in Newtons) of F
A stone of mass 0.31 kg is tied to a string of length 0.85 m and is swung in the horizontal circle with speed v. The string has a breaking-point force of 90 N. What is the largest value v can have without string breaking.
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
How rapidly atom are assembled in this protein synthesis
What is the magnitude of the vertical component of its velocity as it strikes the ground.
What is closing equilibrium temperature of the tin-water
Find graphically magnitude and direction of resultant force
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