Armor asteroids cross into the orbit of which planet?
a. Mercury
b. Venus
c. Earth
d. Mars
e. Jupiter
d
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A convex mirror has a focal length of ?20 cm. What is the position of the resulting image (in cm) if the image is upright and four times smaller than the object?
a. ?100 b. ?25 c. ?50 d. ?15 e. ?10
A solid solution of two or more metals is called a(n) ______________
Fill in the blank(s) with correct word
The early astronomers imagined that the entire Universe was enclosed inside the celestial sphere that lay just beyond the planet _____
A) Jupiter B) Mars C) Saturn D) Uranus
Ideal Gas Law: As shown in the figure, an air pocket at the top of a vertical tube, closed at the upper end and open at the lower, occupies a volume of 560 cm3 at the surface of a lake where the air pressure is 1.0 × 105 Pa and the temperature is 37°C. What is the volume of the air in the pocket if the tube is taken to a depth of 56 meters, where the temperature is 7°C? Assume that none of the air escapes from the tube. The density of the water in the lake is 1000 kg/m3.
Fill in the blank(s) with the appropriate word(s).