What do you notice about your thumb?
A: It appears to move more when it's closer.
B: It appears to move less when it's closer.
C: It appears to move the same when it's closer.
D: It disappears entirely when it's closer!
E: None of the above.
Ans: A: It appears to move more when it's closer.
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A high tide is occurring at Charleston, South Carolina (70°W, 12°N). At approximately what other longitude is a high tide occurring?
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For which of the following will the phenomenon of wave interference apply? (Choose the best answer.)
1.square-shaped pulses 2.sinusoidal pulses 3.triangular pulses 4.all of these
What are the dimensions of acceleration?
What will be an ideal response?
Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a pressure of 0.250 atm with a volume flow rate of 1.00 × 10-3 m3/s. At a valve, the effective cross-sectional area of the pipe is reduced to 5.00 cm2
What is the pressure at the valve? A) 0.200 atm B) 0.235 atm C) 0.112 atm D) 0.157 atm