Compute the gain in potential energy of the system
Five similar 0.85 kg books of 2.50 cm thickness are each lying flat on the table. Compute the gain in potential energy of the system when they are stacked one on top of the other.
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Particles around 4.0 x 10-2 cm in diameter are to be scrubbed loose from machine parts in an aqueous ultrasonic cleaning bath. Above what frequency must the bath be operated to generate wavelengths of this size and smaller?
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Determine the numbers of photons of red light are needed when the human eye is a complex sensing device for visible light. The optic nerve needs a minimum of 2.0*10^-17 J of energy to trigger a series of impulses that eventually reach the brain.
hickness are each lying flat on the table. Compute the gain in potential energy of the system when they are stacked one on top of the other.
Suppose that the z scores are normally distributed with a mean of 0 and a standard deviation of 1.
Our asteroid is in the shape of sphere and consists of a mass of 1000 kilograms. Find out the density (in grams per cubic centimeter) of the asteroid if its diameter is identified to be 1.2 meters. Useful information: 1 kg = 1000 g, 1 m = 100 cm,
There are n black balls and n white balls in the box. Illustrate, that choice of 2 balls of same colour happens less often than choice of balls of different colours. What occurs if n is very big?
Explain why is it possible to separate some compounds with identical boiling points by gas chromatography even though at all by distillation they cannot be separated, even fractional distillation?
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