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A violin string of length 40 cm and mass 1.4 g has a frequency of 526 Hz when it is vibrating in its fundamental mode. (a) What is the tension in the string? (b) What is the wavelength of the standing wave on the string? (c) Where must you place your finger to increase the frequency to 676 Hz? cm from the fixed end of the string (from the peg of the violin)
A uniform electric field exists in a region between two oppositely charged plates. find the speed of the electron as it strikes the second plate
On a workday the average decibel level of a busy street is 80 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 45 every minute on a weekend, what is the decibel level of the street.
A soccer player kicks a rock horizontally off a 40.0 m high cliffinto a pool of water. what was the initial speed given to the rock
a a reversible heat pump is used to maintain a temperature of 0c in a refrigerator when it rejects the heat to the
Electric power is transferred over large distance sat very high voltages. Describe how the high voltage reduces power losses in the transmission lines
An electron moving along the x axis has a position given by x = 16 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops
You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of54 N·m. Using the data in the figure, determine the magnitude F of the force that you must exert on thewrench.
Take the initial direction of motion to be the positive direction. (Indicate the direction of the acceleration by the sign of your reply.)
A certain gyroscope consists of a uniform disk with a 52 cm radius mounted at the center of an axle that is 12 cm long and of negligible mass. what is the precession rate
The truck barely exceeds this acceleration and then moves with constant acceleration, with the crate sliding along its bed. What is the acceleration of the crate relative to the ground
a bat moving with speed of 3.25 ms and emitting sound of 35.0 khz approaches a moth at rest on a tree trunk. a what
A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s^2 for 14.0 s. What is the total distance travelled
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