Wavelength of the electromagnetic wave based problem
A cell phone transmits at a frequency of 1.95×10^8 Hz. Whatis the wavelength of the electromagnetic wave used by this phone? Answer in meters please.
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Suppose the mirror is convex. The distance between the image and the object is the same as in part (a), but the image is 0.500 the size of the object. Determine the focal length of the mirror.
A cylindrical pressure vessel with outside diameter 8 inches and thickness ¼ inch is expected to hold pressures of 5000 psi.
An otherwise empty room contains 6 x 1026 air molecules. How many times more probable is it that they are split exactly 50-50 between front and back halves of the room than that there is a 49-51 split? (Hint: Use PN(n) and Stirling's formula.)
A study examining the correlation between caffeine and consumption and the speed of running during an athletic event has yeilded a value of +.65 for pearson r.
How long does it take to double an investment of $1000 deposited in an account paying 6% annually compounded monthly?
If heat transfer from the heat exchanger to its surroundings is 10% of the energy required to increase the temperature of the oil, determine the steam mass flow rate, in kg/s.
Suppose on your twenty-fifth birthday you opened a retirement account with the Howard Fund - a fund paying investors 8 percent return compounded yearly on their investments - with a threethousand dollars investment
If you identify just the child as your system, what is the net external force on the child as he is jumping?
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