Electromagnetic waves do not require a medium to be transmitted
Indicate whether the statement is true or false
TRUE
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Carnot Engine: An ideal Carnot heat engine has an efficiency of 0.600. If it operates between a deep lake with a constant temperature of 294.0 K and a hot reservoir, what is the temperature of the hot reservoir?
A. 735 K B. 490 K C. 470 K D. 784 K
A motorcycle of mass 100 kilograms slowly rolls off the edge of a cliff and falls for three seconds before reaching the bottom of a gully. Its momentum upon hitting the ground is
A) 1,000 kg m/s. B) 2,000 kg m/s. C) 3,000 kg m/s. D) 4,000 kg m/s. E) 9,000 kg m/.
Consider a human heart rate of 80 beats per minute. If someone's heart beats at that rate over a 70-yr lifetime, how many times would it beat?
A) 2.20 × 109 B) 7.44 × 105 C) 3.26 × 1010 D) 2.95 × 109 E) 1.78 × 107
An average lapse rate of 2.7 °F/1000 ft is equivalent to
a. 1.5 °C/m. b. 4.0 °C/1000 ft. c. 5.0 °C/km. d. 6.5 °C/1000 m.