Sunday
May 3, 2015

Homework Help: Physics

Posted by teamjakeward on Sunday, February 15, 2009 at 12:22pm.

please check these for me

Which of the following is not a fluid?
a. carbon dioxide
b. hydrogen
c. seawater
d. wood

D

Which of the following statements is not correct?
a. a fluid flows
b. a fluid has a definite shape
c. molecules fo a fluid are free to move past each other
d. a fluid changes its shape easily

B

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

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

thanks for the help!

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