In a large tank of liquid, the hydrostatic pressure at a given depth is a function of:
a. depth.
c. liquid density.
b. surface area. d. Choices a and c are both valid.
D
You might also like to view...
Assume we can determine the position of a particle within an uncertainty of 0.5 nm. What will be the resulting uncertainty in the particle's momentum (in kg ? m/s)?
a. 1.9 × 10^?25 b. 4.2 × 10^?25 c. 1.1 × 10^?25 d. 1.3 × 10^?24 e. 6.6 × 10^?25
Two parallel wires carry a current I in the same direction. Midway between these wires is a third wire, also parallel to the other two, which carries a current 0.5 I, but in the direction opposite from the first two wires. In which direction are the net forces on the outer wires?
a. Since the net forces are zero, there is no direction. b. Both forces are toward the center wire. c. Both forces are away from the center wire. d. Both forces on the two wires are in the same direction in space.
A bird, accelerating from rest at a constant rate, experiences a displacement of 25 m in 15 s. What is the final velocity after 15 s?
a. 2.5 m/s b. 1.7 m/s c. 3.3 m/s d. 3.8 m/s e. zero
A train sounding its horn is moving toward an observer. The pitch of the horn's sound relative to its normal pitch is
a. lower. b. sometimes higher and sometimes lower. c. higher. d. the same.