Suppose there are 3 molecules in a container. If each molecule has a 1-in-2 chance of being in the left half of the container, what is the probability that there are exactly 2 molecules in the left half of the container?
A. 1/2
B. 1/3
C. 1/8
D. 3/8
E. 3/5
Answer: D
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Compound Microscope: A compound microscope has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. It is adjusted for minimum eyestrain for persons with a near point of 25 cm. If the two lenses are separated by 40.0 cm, what is the total overall magnification?
A. 28 B. 56 C. 470 D. 550 E. 2200
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A) clear glass. B) green glass. C) both the same
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(a) Determine the volume of the piece of aluminum. (b) Determine the tension in the cord when the aluminum is immersed in the container of water.
Estimate the radius of a nucleus with mass 50 u. (mneutron ? mproton = 1.67 × 10-27 kg)
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