Compared to the density of water, the density of Saturn is
A) less.
B) more.
C) about the same.
Answer: A
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A large substitutional atom is attracted to the region of an edge dislocation that has _________strains.
Fill in the blank(s) with the appropriate word(s).
The linear momentum of a truck will be greater than that of a bus if
a. the truck's mass is larger than the bus's but its speed is the same. b. the truck's speed is larger than the bus's but its mass is the same. c. the truck's mass and speed are both larger than the bus's. d. any of the above.
The graph for position versus time is given for a car. What can you say about the velocity of the car over time?
A. it speeds up all the time
B. it slows down all the time
C. it moves at constant velocity
D. sometimes sometimes
it speeds up and it slows
E. not really sure
A celebrating student throws a water balloon horizontally from a dormitory window that is 50 m above the ground. It hits the ground at a point 60 m from the building without appreciable air resistance
(a) What will be the horizontal component of the velocity of the balloon just before it hits the ground? (b) What will be the magnitude of the vertical velocity of the balloon just before it hits the ground?