In 1851, Earth's rotation was demonstrated using a(n) ______________
Fill in the blank(s) with correct word
Foucault pendulum
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Asteroid impacts large enough to cause mass extinction on Earth occur roughly once every 100 million years. Use that fact to estimate the probability that such an event will occur in your lifetime, which you can take to be approximately 100 years. What's your estimate of that probability?
A) 1 in 100,000,000 B) 1 in 10,000 C) 1 in 1,000,000 D) 1 in 100,000,000,000
When a gas expands adiabatically,
A) the internal energy of the gas decreases. B) the internal energy of the gas increases. C) there is no work done by the gas. D) work is done on the gas. E) heat flows out of the system.
Three resistors, 10 ?, 20 ?, and 30 ?, are wired in parallel and connected to a 12-V battery. How much current flows in the circuit?
At the moment of a total eclipse, the moon lies along a line from the Earth to the sun. If your normal weight is 600 N, how much is your weight decreased by the combined pull of the sun and moon? MSUN = 2.0 × 10^30 kg, rS-E = 1.5 × 10^8 km MMOON = 7.4 × 10^22 kg, rM-E = 3.8 × 10^5 km