An astronaut of mass 70 kg weighs 700 N on Earth's surface. His weight on the surface of Mars, where the acceleration due to gravity is 3.7 m/s2, would be about
A) the same as on Earth.
B) 130 N.
C) 260 N.
D) 370 N.
E) none of the above
Answer: C
You might also like to view...
A string is stretched with a tension of 100 N. The string has a length of 2.00 meters. The velocity of wave propagation along the string is 220 m/s. The mass of the string is
A. 3.75 gm. B. 4.13 gm. C. 4.66 gm. D. 5.21 gm. E. 5.74 gm.
A 400-g piece of metal at 100°C is dropped into a 100-g aluminum cup containing 500 g of water at 15°C. The final temperature of the system is 40°C
What is the specific heat of the metal, assuming no heat is exchanged with the surroundings? The specific heat of aluminum is 900 J/(kg?K) A) 1900 J/(kg?K) B) 2270 J/(kg?K) C) 3300 J/(kg?K) D) 3800 J/(kg?K) E) 4280 J/(kg?K)
A 4.0-mF capacitor initially charged to 50 V and a 6.0-mF capacitor charged to 30 V are connected to each other with the positive plate of each connected to the negative plate of the other. What is the final charge on the 6.0-mF capacitor?
a. 20 mC b. 8.0 mC c. 10 mC d. 12 mC e. 230 mC
A horizontal metal bar oriented east-west drops straight down in a location where Earth’s magnetic field is due north. As a result, an emf develops between the ends. Which end is positively charged?
1.the east end 2.the west end 3.neither end carries a current