Which of the following does NOT reveal information about conditions on the early Earth?
A) the fossil record
B) the sedimentary rocks found on the most ancient exposures in Greenland
C) laboratory simulations of the primordial ocean and atmosphere
D) advanced experiments on amino acids
E) evidence gleaned from other planets in the early stages of their evolution
E
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A 12-oz can of soft drink contains about
A. 10 Calories B. 50 Calories C. 150 Calories D. 2000 Calories
A 0.28-kg block on a horizontal frictionless surface is attached to an ideal massless spring whose spring constant is 500 N/m. The block is pulled from its equilibrium position at x = 0.00 m to a displacement x = +0.080 m and is released from rest
The block then executes simple harmonic motion along the horizontal x-axis. When the displacement is x = -0.052 m, find the acceleration of the block. A) 92 m/s2 B) 46 m/s2 C) 69 m/s2 D) 230 m/s2 E) 280 m/s2
A rope with a total mass of 25.0 kg is tied to a tree on one side of a 125-m wide ravine. You are pulling on the other end of the rope with a force of 415 N
If you pluck the rope at your end, how long will it take the pulse to travel across the ravine to the tree?
If a quasar has a red shift of 0.98, then it is receding from Earth at 98 percent the speed of light
Indicate whether the statement is true or false