The surface gravity of Mars is 3.7 m/s2. If a person with mass of 100 kg were parachuting on Mars, what would be the force exerted by air resistance at terminal velocity?
A. 100 N
B. 370 N
C. 490 N
D. 980 N
Answer: B
You might also like to view...
The rings of Uranus were discovered during ______
a. an occultation of a star by the rings (as well as by the planet) b. during an eclipse of one of the moons by the rings. c. a voyage to Uranus by astronauts d. as Uranus and the rings passed behind Jupiter. e. an encounter by the Voyager 1 space probe.
Scientists today do not accept the Ptolemaic model because
A) it is ancient history. B) it was too complicated, compared to Copernicus' heliocentric model. C) it has been shown that Ptolemy faked his data. D) it had no explanation for retrograde motion. E) the work of Tycho and Kepler showed the heliocentric model was more accurate.
Which star spends the longest time in the protostellar phase of life?
A) a 1-solar-mass star B) a 2-solar-mass star C) a 3-solar-mass star D) a 4-solar-mass star E) a 5-solar-mass star
Plutonium has a half life of 2.4 × 104 years. How long does it take for 99.0% of the plutonium to decay?
A) 1.6 × 102 y B) 1.6 × 103 y C) 1.6 × 104 y D) 1.6 × 105 y E) 1.6 × 106 y