Neutrons:
A) have double the mass of protons.
B) are atomic particles with no charge.
C) when equal in number form isotopes.
D) exist independently and unattached to atoms.
B
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Suppose you heat up an oven and boil a pot of water. Which of the following explains why you would be burned by sticking your hand briefly in the pot but not by sticking your hand briefly in the oven?
A) The oven has a higher temperature than the water. B) The water has a higher temperature than the oven. C) The oven has a higher heat content than the water. D) The molecules in the water are moving faster than the molecules in the oven. E) The water has a higher heat content than the oven because of density.
In Hubble's Tuning Fork, mergers drive the arrow of time to the ________
Fill in the blank(s) with correct word
In an interference pattern, the wavelength and frequency are
a. the same in both the regions of constructive interference and the regions of destructive interference. b. greater in regions of constructive interference than in regions of destructive interference. c. smaller in regions of constructive interference than in regions of destructive interference. d. unchanged in regions of destructive interference but greater in regions of constructive interference. e. unchanged in regions of destructive interference but smaller in regions of constructive interference.
For safety in climbing, a mountaineer uses a 50-m long nylon rope that is 1.0 cm in diameter. When supporting a 90-kg climber, the rope elongates 1.6 m. Find the Young's modulus for the rope material