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A certain organ pipe, open at both ends, produces a fundamental frequency of 297Hz in air. If the pipe is full with helium at the same temperature, what fundamental frequency f He will it produce? Take the molar mass of air to be 28.8g/mol and the molar mass of helium to be 4.00g/mol.
Conclude the electric field at the origin
During an electrostatic field experiment, you assume that the electric field lines are in the plane of the paper, What condition determines the accuracy of this assumption
Calculate the verage speed and time lead by the runner using the definition of average speed.
A rock is dropped off the side of a bridge and hits the water below 5.7 s later. What was the rock's velocity when it hit the water
A spring with spring constant 250 N/m is compressed by 0.13 m and then used to propel a 0.035-kg ball directly upward. If needed, use g = 10 m/s2. what is the height of the ball at it's peak
A 65-kg woman cheats on her diet and eats a 612-Calorie (612 kcal) jelly doughnut for breakfast. If the human body is only 21% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakf..
Calculate the angular momentum of the Earth about its own axis, due to its daily rotation. Assume that the Earth is a uniform sphere
A pendulum consists of a mass m = 0.120 kg hanging from a flexible string of length L. Find the oscillation frequency of the pendulum
A solenoid 10.0 cm in diameter and 75.4 cm long is made from copper wire of diameter 0.100 cm, What power must be delivered to the solenoid if it is to produce a field of 7.60 mT at its center
An astronomer on Earth observes a meteoroid in the southern sky approaching Earth at a speed of 0.830c. At the time of its discovery, the meteoroid is 23.0 light-years from Earth. Compute the following. The time required for the meteoroid to reach Ea..
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +4q. Sphere B carries a charge of -9q. What is the total charge on the three spheres before they are allowed to touch each other
A 1000-W motor power a hoist used to lift cars at a service station. If it is replaced with a 2,000W motor, determine how long would it take
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