A vertical pipe, closed at the bottom end, is filled to a depth of 1.00 m with water and then an amount of oil of density 
is added to make the total depth 2.00 m. The oil and water don't mix with the oil floating on top of the water. What is the increase in pressure at the bottom end of the pipe as a result of adding the fluids?
What will be an ideal response?
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In an electrophoresis experiment, the terminal speed of a particular DNA fragment is vT . If the experiment is repeated with identical fragments with the voltage between the plates producing the field increased by 50%, what new terminal speed would occur? Choose the closest answer
a. 1.6 vT c. 2.3 vT b. 1.5 vT. d. 0.50 vT
Interference colors in a soap bubble is evidence that the soap film
A) has two reflecting surfaces. B) is thin. C) both of these D) neither of these
The fastest moving planet in a solar system is the
A) smallest planet. B) most massive planet. C) planet nearest the Sun. D) planet farthest from the Sun. E) all move at the same speed.
An object is dropped from a height. Once it is moving, which of the following statements is true, at least at one point?
a. Its velocity is more than its acceleration. b. Its velocity is less than its acceleration. c. Its velocity is the same as its acceleration. d. Its velocity is never equal to its acceleration.