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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?
Find out the angular velocity at the beginning of the 4.60 interval; the angular acceleration of the flywheel.
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..
Two metal plates are held together by two steel rivets, each of diameter 0.24cm and length 1.2cm.How much force has to be applied parallel to the plates to shear off both rivets.
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
What is the mass of sculpture (in kg) assume that the local acceleration due to gravity is 9.80 m/s2.
What is the coefficient of kinetic friction
What is torque exerted by the fish about an axis
What is velocity curve between two times
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
A heavy piece of hanging sculpture is suspended by a 146.0 cm long, 8.03 gm wire. When the wind blows hard, wire hums at its fundamental frequency of 113.0 Hz. What is the mass of the sculpture (in kg) assume that the local acceleration due to gravit..
If the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second.
When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
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