In the 19th century, Charles Darwin suggested that life may have originated
A) in shallow ponds on land
B) deep beneath the oceans
C) beneath the surface of the Earth
D) in the atmosphere
A
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Fraunhofer was the German astronomer who first noted ________ lines in the Sun's spectrum
Fill in the blank(s) with correct word
To multiply an applied force while using a simple hydraulic lift, your force should be applied to the
A) large-diameter piston. B) small-diameter piston. C) relative piston sizes don't matter
Outside the ice line the temperatures are too warm for ices to condense
a. True b. False Indicate whether the statement is true or false
Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg) are held against a strong, compressed spring. The carts are released simultaneously, and B moves off to the right with a speed of 2.0 m/s. What is A's initial velocity?