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The E string on an electric bass guitar has a length of 0.606 m and, when producing the E note, vibrates at a fundamental frequency of 41.2 Hz. Players sometimes add to their instruments a device called a "D-tuner". This device allows the E string to be used to produce the note D, which has a fundamental frequency of 36.7 Hz. The D-tuner works by extensing the length of the string, keeping all other factors the same. By how much does a D-tuner extend the length of the E string?
The electric motor of a heat pump transfers energy as heat from the outdoors, which is at -7.4°C, to a room, which is at 15°C. If the heat pump were a Carnot heat pump (a Carnot engine working in reverse), how much energy would be transferred as heat..
2 parallel straight wires are 9.0 cm apart and each caries a 10.0 a current in the same direction. one wire is securely
In a certain particle accelerator, protons travel around a circular path of diameter 20.5 m in an evacuated chamber, What is the mean free path of the gas molecules
A train is travelling up a 3.2 degree incline at a speed of 3.55 m/s as the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
If one resistor of a particular size is connected to a battery, 2.5A flow from the battery, How much current flows through one of the 10 resistors
What pressure is acting on the walls of drum
The pickup coil in an electric guitar contains 10,000 turns and hasa diameter of 1.6 mm. When the pickupcoil is very close to a guitar string, there is a field ofmagnitude B = 0.14 T in thecoil. If this steel string is vibrating at a frequency of1..
A beam contains 8.4 x 108 doubly charged positiveions per cubic centimeter, all of which are moving north with aspeed of 4.2 x 105 m/s. What is the magnitude of the current density?
T thin lense with a focal length of 50 cm is placed 100 cm from an object. How far behind the lense should we place a screen
During very high speed, the atmospheric pressure inside a home may blow the roof off because of the reduced outside pressure. Determine the force on a square roof 15 meter on a side
A 68.0-kg person throws a 0.0500-kg snowball forward with a ground speed of 27.0 m/s. What are the velocities of the two people after the snowball is exchanged
An extremely thin film of soapy water (n=1.36) sits on top of a flat glass plate with n=1.11. What is the thickness of the film
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