By examining the following three images, what can you conclude?
a. Venus is covered with clouds.
b. Earth has a large amount of liquid water.
c. Some form of ice does exist on Mars, but it does not have large amounts of liquid water.
d. The planets in order from the least to most dense atmospheres are Venus, Earth, and Mars.
e. all of the above
e. all of the above
You might also like to view...
A marble has a diameter of 2 cm. At what distance would the marble have an angular diameter of 1 arc second
a. 4.1 cm b. 4.1 miles c. 4.1 m d. 4.1 ft e. 4.1 km
Two students stand poised to leap off a high dive structure into the swimming pool below. Student B is twice as massive as student A. Which of the following is true?
a. Student B will reach the ground sooner than student A b. Both students have the same gravitational potential energy c. Both students will have the same kinetic energy just before impact d. Student B did twice as much work climbing to the top of the structure
Patterns of stars in constellations hardly change in appearance over times of even a few thousand years. Why?
A) Stars are fixed and never move. B) Stars move, but they move very slowly—only a few kilometers in a thousand years. C) Although most stars move through the sky, the brightest stars do not, and these are the ones that trace the patterns we see in the constellations. D) The stars in our sky actually move rapidly relative to us—thousands of kilometers per hour—but are so far away that it takes a long time for this motion to make a noticeable change in the patterns in the sky. E) Stars within a constellation move together as a group, which tends to hide their actual motion and prevent the pattern from changing.
An electric motor produces 2.0 hp in a Vrms = 120 V circuit. What is Irms for this motor? (1 hp = 746 W)
a. 12 A b. 6.2 A c. 0.62 A d. 1.6 A