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You melted a copper cylinder of volume 15.0 cm3 to fabricate a thin wire of diameter 0.02 mm. What will be the length of wire formed? Assume no material is lost in the process.
You are setting up two standing string waves. You have a length of uniform piano wire that is 6.0m long and has a mass of 0.150kg . You cut this into two lengths, one of 2.6m and the other of 3.4m , and place each length under tension. What should..
An 18 g rifle bullet travelling 180m/s buries itself in a 3.6kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Verify the horizontal component of the pendulum's displacement.
An green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. What is magnitude of the linear acceleration of the hoop
A train moving at a constant speed of 59.0 km/h moves east for 50.0 min, What is the average velocity of the train during this run
The current in a coil changes from 3.1 A to 1.9 A in 0.52 s. what is the self-inductance of the coil
q1. a magnifier has a magnification of 7x.how far from the lens must an object be placed so that its virtual image is
Use this technique to find formula for the intensity of a sound, in terms of sound level and the reference intensity. There will be a quantity involved in the calculations. When you enter your answer, leave off the unit.
Suppose that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385 torr. If all the oxygen as is removed from the mixture by reaction with phosphorus
Two resistanceless rails 32 cm apart rest on a 6.0° ramp. They are joined at the bottom by a 0.63 resistor, What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun
two point charges are seperated by 10.0 cm and have charges of +2.00uc, What is the electrical field at a point between the two charges
A copper cylinder with a temperature of 277 K is found to emit 179 J of energy each second. what is its surface area
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