The earth has radius R. A satellite of mass 100 kg is in orbit at an altitude of 3R above the earth's surface. What is the satellite's weight at the altitude of its orbit?
A) 61 N
B) 110 N
C) 9000 N
D) 16,000 N
A
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A fish appears to be 2.00 m below the surface of a pond when viewed almost directly above by a fisherman. What is the actual depth of the fish? (nwater = 1.33)
A) 2.66 m B) 0.67 m C) 1.5 m D) 0.38 m
Suppose the Moon had twice as much mass as it does now and still orbits Earth at the same distance. In that case, the ocean bulges on Earth would be
A) larger. B) smaller. C) unequal in size. D) not significantly different. E) none of these
Evidence that the Earth was nearly molten at one time comes from the differentiation of materials by ________ from core to crust
Fill in the blank(s) with correct word
A body moving along the x axis is acted upon by a force Fx that varies with x as shown. How much work is done by this force as the object moves from x = 1 m to x = 8 m?
?
?
a.
?2 J
b.
?18 J
c.
?10 J
d.
?26 J
e.
+18 J