Which of the following supports the idea that the Martian crust is not divided into moving plates like those on Earth? I. the size of Olympus Mons II. the lack of folded mountain chains III. the lack of rift valleys outlining entire plates IV. the presence of dry river beds and sea floors
a. I & II
b. II & III
c. II, III & IV
d. I, II, & III
e. I, II, III, & IV
D
You might also like to view...
A thin metallic shell of radius 40 cm has a charge of -25 nC on it. At the center of the sphere is a point charge of 35 nC. What is the electric field 50 cm from the center of the shell?
A. 400 N/C outward B. 560 N/C outward C. 360 N/C outward D. 360 N/C inward E. 560 N/C inward
Young's Modulus: A 1200-kg car is being raised with a constant acceleration of 2.53 m/s2 by a crane, using a 20-m long steel cable that is 1.5 cm in diameter. Young's modulus for steel is 2.0 × 1011 N/m2. What is the change in length of the cable caused by lifting the car?
A. 8.4 mm B. 8.4 cm C. 4.9 mm D. 4.9 cm E. 4.9 m
The direction of the force on a current carrying wire located in an external magnetic field is which of the following?
a. perpendicular to the current b. perpendicular to the field c. Both choices A and B are valid. d. None of the above are valid.
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the vertical height of the stairs is 20 meters, what is the person's power output?