Evolutionary adaptations are related to changes that occur through time in
A) lipids
B) carbohydrates
C) proteins
D) DNA
D
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The reason that most extrasolar planets discovered by the Doppler technique are found close to their parent stars is
A) the closer to a star, the hotter and therefore brighter the planet is. B) more of the starlight is blocked by the planet when it transits the star. C) planets that are close to a star are heated up and therefore larger. D) they transit more frequently, and have thus been more likely to be detected in the short time we have been searching for them. E) the wavelength shift of the star's spectrum is larger.
An experiment for determining the value of the universal gravitational constant G was devised by Jolly
He placed a 5.00-kg sphere on a balance and, after it was balanced, he moved a 5775-kg lead sphere under the 5.00-kg sphere, causing the balance to tilt off its equilibrium position. The distance between the centers of the two spheres was 0.569 m. Knowing that G = 6.67 x 10-11 N•m2/kg2, what mass did he need to add to the other side of the scale to bring it back in balance? A) 0.606 mg B) 5.94 mg C) 3.39 mg D) 0.345 mg E) 0.912 N
A car is traveling along a freeway at 65 mph. What is the linear speed, relative to the highway, of each of the following points on one of its tires?
(a) the highest point on the tire (b) the lowest point on a tire (c) the center of the tire What will be an ideal response?
The work of surface water does all of the following except
A) erosion. B) deposition. C) land subsidence. D) delta formation.