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You watch a distant carpenter driving his nails into the side of a house at a regular rate of 1 stroke per second. You hear the sound of the blows exactly synchronized with the blows you see. You then hear one more blow after you see him stop hammering. How far away is he? Justify your ANSWER---BE BRIEF.
Solution1 : The information tells you that sound travels for one second before reaching you the actual distance will depend on temperature, since the speed of sound varies with temperature, at 20 deg C it is approx 343m/s, so if this is a nice spring day, you are 343m away
Real ball bearings Study real ball bearings and roller bearings. Make a list of devices that having ball bearings or roller bearings.
1. How fast must an object travel for its total energy to be (a) 1% more than its rest energy and (b) 99% more than its rest energy. 2. A proton is moving with a constant speed
In the figure below, the hand moves the end of the Slinky up and down through 2 complete cycles in 1 seconds. The wave moves along the Slinky at a speed of 0.60 m/s. Find the dista
How many pounds does one gallon of water weigh One wine calculates or US gallon of water weighs 8.34 pounds. An Imperial Gallon is ten pounds of water at 62F and 30 inches of
how make a good project
What is harness? The harness applied in the industry to explain a group of fibers or light guides, particularly terminated and with a common end. Usually, each harness should h
Q. What is Heisenberg's uncertainty principle? Write the three forms of uncertainty relations. Ans. The principle of uncertainty was described by Heisenberg in 1927. Acco
How do you find your body volume using a tape measure? ACCURATELY calculates a container into which your body will fit comfortably. Once you know the volume, fill the containe
Generate and plot a sampled sine wave with fs=8kHz, of 4 seconds duration, with frequency ?0 = ?/10 and amplitude A = 1.2. The waveform equation is x(n) = A sin n?
How many ports does a fiber optics system have? Depending upon the final use the main common parts to account for in a fundamental system are: bushing, end fittings and illumin
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