Recent content by tyro008

would the gauge pressure have to be zero for no water to flow? and the pressure difference would be gauge pressure, what I calculated in (a), I think.

to find the height, would i use torricelli's theorum and then find V1 (velocity 1)?

thank you! that really helped a lot :)

ok this time i tried the differences in gauge pressure, so i subtracted pgh from 1.70 X 10^5Pa, and got 118988Pa.. would this be the right answer?

i'll just use "p" for rho.. i thought the difference might be pgh, and that pgh would be the gauge pressure. so i just multiplied density of water by gravity by height.. but that didn't work. i just don't know if there's supposed to be a different equation, since the faucet is closed and...

Homework Statement The main water line enters a house on the first floor. The line has a gauge pressure of 1.70 X 10^5 Pa. (a) A faucet on the second floor, 5.2 m above the first floor, is turned off. What is the gauge pressure at this faucet? Pa (b) How high above the water main could...

Homework Statement A train is rounding a circular curve whose radius is 2.00 X 10_{}2 m. At one instant, the train has an angular acceleration of 1.50 X 10^-3 rad/s_{}2 and an angular speed of 0.0400 rad/s. (a) Find the magnitude of the total acceleration (centripetal plus tangential) of the...

whoops, change in angular* speed

oh sorry, the alpha stands for angular acceleration the delta of little omega stands for change in anuglar speed :]

Homework Statement The angular speed of an automobile engine is increased at a constant rate from 1500 rev/min to 3900 rev/min in 14 s. (A) What is its angular acceleration in revolutions per minute-squared? (B) How many revolutions does the engine make during this 14 s interval...

haha, thanks anyways you guys. you know, i think you guys are right. i'll talk to my teacher about changing the answer :)

i keep getting 0.02 seconds, but this isn't the right answer. is this what you got, too?

oh whoops. but.. i tried that and it still didn't work.. is there another equation that i should use instead? i feel that my T represents time, but not the one I'm looking for

Homework Statement The tips of the blades in a food blender are moving with a speed of 15 m/s in a circle that has a radius of 0.052m. How much time does it take for the blades to make on revolution? Homework Equations T=(2XpiXr)/T T: period of time it takes to complete one cycle The...

hey yeah it is! thanks so much to all you guys for helping me, i REALLY appreciate it! :]