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1. A 20-foot organ pipe generates sound waves which are12.5 meters long. At what frequency does the pipe make sound?
2. One of the most renowned concert halls in the world, the Amsterdam Concertgebouw, is rectangular in shape with dimensions of 30.4 meters by 20.4 meters by 9.2 meters. Which frequencies have wavelengths that match each of those lengths?
Two cars collide at an intersection. Car , with a mass of 1800 , is going from west to east, while car , of mass 1300 , is going from north to south at 16.0. How fast was car going just before the collision
How far away should the receiver be to catch it and how long after the throw does he do so?
Two point charges are 10.0 cm apart and have charges of 2.0 x10-6 C and -2.0 x 10-6 C, respectively. What is the magnitude of the electric field at the midpoint among the two charges?
A compact disk on a CD player rotates clockwise. The disk completes one revolution in 0.234 s, what is the angular velocity of the disk
What focal length is necessary for a magnifying lens to produce a magnification of 5 for an object 20cm from the lens
The student lifts his feet from the floor, so that the scale reads his weight, 150 lb, when the car is horizontal. At one point during the ride, the car zooms with negligible friction down a straight slope inclined at 22.0° below the horizontal. W..
During a lunar eclipse, a picture of the moon (which has a diameter of 3.48 x 106 m and is 3.86 x 108 m from the earth) is taken with a camera whose lens has a focal length of 285 mm. What is the diameter of the image on the film
Compare this with the average particle energy of 1019 GeV needed for unification of forces.
a small motor draws a current of 1.75 A from a 120.0 V line. It costs $35.81 to operate the motor for 4.00 hrs at $0.0600 /kWh. What is the power output of the motor
A certain amount of a monatomic gas is maintained at constant volume as it is cooled by 50 K. Determine how much work is done by the gas
Juan aims his boat directly across a river flowing at 8 miles/hour. Juan's boat travels at 6 miles/hour in still water. How fast does Juan travel relative to shore?
Assume that you have an object that you want to image onto a viewing screen 1500mm away from the object. What are the possible image magnifications if you image the object onto the screen with a thin lens of focal length f=160mm? What focal length..
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