The brakes in a car work because of __________ principle
Fill in the blank(s) with correct word
Pascal's
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If the voltage at a point in space is zero, then the electric field must be
A) negative. B) zero. C) uniform. D) positive. E) impossible to determine based on the information given.
The root-mean-square speed (thermal speed) of a certain sample of carbon dioxide molecules, with a molecular weight of 44 g/mol, is 396 m/s
What is the root-mean-square speed (thermal speed) of water vapor molecules, with a molecular weight of 18 g/mol, at the same temperature? A) 253 m/s B) 396 m/s C) 421 m/s D) 506 m/s E) 619 m/s
What did the Universe used to look like?
A.) Transparent. B.) Translucent. C.) Colorful. D.) Opaque. E.) Photons.
The lunar mare are found:
A) anywhere large meteor impacts created deep basins. B) almost entirely on the far side, which was more likely to be hit. C) almost entirely on Earth side, where the crust was thinner. D) mainly in the south polar region, where the largest impact occurred. E) not at all, since no liquid water really exists on the Moon.