Posted by teamjakeward on Sunday, February 15, 2009 at 12:22pm.
Which of the following statemnents is true according to Pascal's principle?
a. pressure in a fluid is greatest at the walls of the container holding the fluid
b. pressure in a fluid is greatest at the center of teh fluid.
c. pressure in a fluid is the same throughout the fluid
d. pressure in a fluid is greatest at the top of the fluid.
C None of the answers are right. If c were right, the pressure at the bottom of the ocean would be the same as near the surface. Here is Pascal's principle: Pressure applied to an enclosed fluid is transmitted undiminished to every part of the fluid, as well as to the walls of the container.
It is too bad c did not say pressure applied...
Tides are caused by
a. differences in the gravitational force of the sun at different points on Earth.
b. differences in the gravitational force of the moon at different points on Earth
c. differences in Earth's gravitational field strenght at different points on Earth's surface
d. fluctuations in the gravitational attraction between Earth and moon.
i think either B or D
B. The gravitationional attraction between Earth and Moon does not fluctuate measureable.
so what answer do you think i should pick for the Pascal's Principle one?
C is the closest to being correct in the pressure question. Pressure variations due to depth are usually small in hydraulic systems, compared to applied pressures. However, strictly speaking, all answers are wrong, as BobPursley has already said.
The sun also has a very strong effect on tides; it is about 1/3 of the effect of the moon. It is the reason you always have higher and lower tides when the moon is full or new
ok :)
Related Questions
Chemistry - A compound containing 3 atoms of carbon and 8 atoms of hydrogen is ...
chemistry - a carbon containing 3 atoms of carbon and 8 atoms of hydrdren ...
biology - most of the total mass of a plant comesfrom which source? Nitrogen ...
Chemistry - A compound containg 3 atoms of carbon and 8 atoms of hydrogen is ...
Chemistry - A compound containg 3 atoms of carbon and 8 atoms of hydrogen is ...
Chemistry 1201 - An unknown compound contains only carbon, hydrogen, and oxygen...
chem - Hi the following comes from my first homework assignment in AP Chemistry...
Chemistry - An equilibrium mixture contains 0.250 mol of each of the products (...
Physics - A block of wood will sink 10 cm in freshwater. How far will it sink in...
Chemistry - Question 1. (SEE QUESTION 2 ) A Compound Containing 3 Atoms Of ...
For Further Reading
