A container is filled with water, and the pressure at the bottom of the container is P. Then the container is emptied halfway and topped off with oil of density 0.80 × 10^3 kg/m3, which floats on top of the water. What is the pressure at the bottom of the container now?
a. a pressure < P
b. the same pressure P
c. a pressure > P
d. This is unable to be determined with the information given.
A
You might also like to view...
A compass with its needle pointing north sits on a table. We place a straight wire over the compass perpendicular to its needle. We then send a conventional current running west to east through the wire. How does the compass needle respond to the current?
A. The compass needle deflects toward the west. B. The compass needle deflects toward the east. C. The compass needle does not do anything. D. The compass needle turns around to point south.
Why are shadows generally not totally black?
a. Because our eyes cannot see total blackness, so we reinterpret the shadows. b. Because of the way the light is focused by the eye. c. Because of scattered light from the atmosphere and nearby objects. d. Because of the fuzziness of the penumbra. e. Because of the fuzziness of the umbra.
Alicia intends to swim to a point straight across a 100 m wide river with a current that flows at 1.2 m/s. She can swim 2.5 m/s in still water. At what angle, measured from the upstream direction, must she swim upstream to achieve her goal?
What will be an ideal response?
A(n) ____________________ is a subatomic particle produced in nuclear fusion that can travel through the sun and escape to space without interacting with any particles in the sun
Fill in the blank(s) with correct word