Recent content by Izmad

y(t)=y0-(1/2)*g*t^2 y(t)=0-(1/2)*9.8*1.5^2 = 11.03m So, the distance to travel down and back up would be 22.06m?

Homework Statement Water is pumped into a storage tank from a well delivering 17.0 gallons of water in 29.0 seconds through a pipe of 1.00 in.^2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well? A=1in^2 the answer should...

area*pressure=mass*gravity wow, i don't know what I'm doing wrong, i can get the correct answer. :( but thank you very much for your help. You are wonderful. :)

torque=rF would the radius be from the hand to the center of piston 1?

Ahh, well I just changed the float of my calculator to 7. This has helped. I got my final answer to be 283.2N. Thanks for the advice learningphysics. Also, are there any ideas in regards to problem a? I'm still unsure how to arrive at a mass, and what pressures to use. thank you

this is what i did. 1.013x10^5+ (1025)(9.8)(32.3)=4.261x10^5 Pa 4.261x10^5*.0007=298.2N This answer was close but no cigar. It was within 10% of the correct value. However, I'm still not sure what that value is. :( Further help would be very much appreciated. thank you

also, maybe pressure= mg/A plays a role. I'm still confused. :(

No pressure is given for part a. 71.12 is wrong. So, i must be missing something. both problems are in Newtons.

Homework Statement Piston 1 in Figure P9.24 has a diameter of 0.32 in.; Piston 2 has a diameter of 2.0 in. In the absence of friction, determine the force, , necessary to support the 500 lb weight. Picture http://www.webassign.net/sf/p9_24.gif Homework Equations F1=(A1/A2)F2...

Homework Statement a) A very powerful vacuum cleaner has a hose 2.91 cm in diameter. With no nozzle on the hose, what is the weight of the heaviest brick that the cleaner can lift? (b) A very powerful octopus uses one sucker of diameter 2.91 cm on each of the two shells of a clam in an attempt...

[SOLVED] Concept Question Homework Statement Q2: Suppose rain falls vertically into an open cart which is rolling along a straight track with negligible friction. The speed of the cart a. increases b. decreases c. doesn't change Q2: Now that the cart is full of water, you poke a...