The scarps on Mercury were probably caused by:
A) tectonic activity.
B) meteorite bombardment.
C) a tidal bulge.
D) volcanism.
E) the interior cooling and shrinking.
E
You might also like to view...
Why didn't a planet form where the asteroid belt is now located?
A) There was not enough material in this part of the solar nebula to form a planet. B) Gravitational tugs from Jupiter prevented material from collecting together to form a planet. C) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet. D) The temperature in this portion of the solar nebula was just right to prevent rock from sticking together.
In a police ballistics test, 2.00-g bullet traveling at 700 m/s suddenly hits and becomes embedded in a stationary 5.00-kg wood block. What is the speed of the block immediately after the bullet has stopped moving relative to the block?
What will be an ideal response?
Consider positive and negative charges moving horizontally through the four regions in the figure below. Rank the currents in these four regions, from lowest to highest. (Ia is the current in Figure (a), Ib the current in Figure (b), etc.)
Two long parallel wires are separated by 6.0 mm. The current in one of the wires is twice the other current. If the magnitude of the force on a 3.0-m length of one of the wires is equal to 8.0 ?N, what is the greater of the two currents?
a. 0.20 A b. 0.40 A c. 40 mA d. 20 mA e. 0.63 A