Calculate the Earth's angular momentum in the approximation that treats the Earth's orbit around the sun as a circle. (MSun = 1.99 × 10^30 kg; T = 3.156 × 10^7 s; ME = 5.98 × 10^24 kg.)
2.67 × 10^40 kg/m2/s
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Which of the following is true of Venus?
A) Its atmosphere is transparent to visible light. B) Its atmosphere is transparent to infrared radiation. C) Its atmosphere is as dense as that of Earth. D) Its atmosphere is mostly composed of carbon dioxide.
My battery charger uses 12. watts. At 6.0 cents per kilowatt-hour, how much does it cost to charge batteries for 24. hours?
A) 0.28 cents B) 1.4 cents C) 0.74 cents D) 1.7 cents E) 2.3 cents
A 4.0 kg mass is moving with speed 2.0 m/s. A 1.0 kg mass is moving with speed 4.0 m/s. Both objects encounter the same constant braking force, and are brought to rest. Which object travels the greater distance before stopping?
A) the 4.0 kg mass B) the 1.0 kg mass C) Both travel the same distance. D) Cannot be determined from the information given.
Earthquake waves are classified as P waves and S waves. Which of the following statements is true about these waves?
a. The P wave is transverse as is the S wave. b. The P wave is longitudinal as is the S wave. c. The P wave is transverse and the S wave is longitudinal. d. The P wave is longitudinal and the S wave is transverse. e. Both the P and S waves are mixtures of longitudinal and transverse waves.