Asteroid 433 Eros is one of the largest near-Earth asteroids. For purposes of this problem, assume it is spherical. The value of g at its surface is 0.0060 m/s2 and the escape velocity is only 10.1 m/s. What is the mass of Eros? G = 6
67 x 10-11 N•m2/kg2. A) 2.3 × 1016 kg
B) 3.5 × 1012 kg
C) 6.5 × 1015 kg
D) 4.9 × 1014 kg
E) 6.7 × 1013 kg
C
You might also like to view...
A wheel rotates about a fixed axis with a constant angular acceleration of 4.0 rad/s2 . The diameter of the wheel is 40 cm. What is the linear speed of a point on the rim of this wheel at an instant when that point has a total linear acceleration with a magnitude of 1.2 m/s2?
a. 39 cm/s b. 42 cm/s c. 45 cm/s d. 35 cm/s e. 53 cm/s
Magnetic Field of a Current Loop: Consider two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other. If the magnetic field strength at the center of the smaller loop is B, what is the magnetic field strength at the center of the larger loop?
A. 8B B. 4B C. 2B D. B/2 E. B/4
A 14-mm tall postage stamp is 4.0 mm from a converging lens. If the image of the stamp is 4.0 mm tall, how far is it from the lens?
A) 14 mm B) 8.7 mm C) 1.4 mm D) 1.1 mm
Two lenses, the first with focal length -12.5 cm and the second with focal length 20.0 cm, are separated by 15.0 cm. If an object is place 50.0 cm in front of the first lens, where is the final image formed?
A. 10.0 cm before the first lens B. 25.0 cm before the second lens C. 25.0 cm after the second lens D. 50.0 cm after the second lens E. 100 cm after the second lens