Recent content by alexparker

Yeah it was gage. still can't get a resonable answer however

So far i have Found the Pressure at 15m using P=(density)*g*h (quick question is this Absoulte or gage, not quite sure for under water)

Homework Statement You are designing an underwater maintences schedule for an offsore oil rig. The Divers work at a depth of 15m and the seawater Denisty is 1027Kgm^-3. They Are know to Consume 130L of air at the ambient temperature of 10C over the time to do the job. Atmospheric pressure is...

Hi guys, I am doing a powerpoint on the hammer, and i need to say something about precipitation hardening, and I am having a bit of trouble understanding it. could someone please explain it simply Thanks

Prove that (d/dx)arcos(x) = -1/(Sqrt(1-x^2) Homework Equations The Attempt at a Solution

Calculate the force of attraction between a K+ and O2- ion whose centers are separated by a distance of 1.5nm I think you use this equation Ea= -(A/r) but I am not sure what A is

A cable has an unstretched length of 12.0m and is stretched by 1.2 x 10^(-4)m when a 6.4 x 10^(8) Pa stress is applied. What is the strain per unit volume in the cable in J m^(-3), when this stress is applied? Any help would be very nice. I don't understand what to do.

Two Space crafts, X and Y, of equal masses, are falling towards the earth. A) What are the values of the following ratios i Wx/Wy ii acceleration of X/acceleration of Y B) Why would the astronaut in either spacecraft be considered to be 'Weightless' PLEASE NOTE: There is a...

A Child uses a broom stick to push a 2.0kg bucket of water across a floor. The Broom Stick is held at an angle of 60 degrees to the horizontal and exerts a force of 100N on the bucket. The bucket is initially at rest and encounters a constant frictional force of 10N while moving a distance of...

dont worry everyone i just worked it out, its to do with the ratio

The Question is Ammonia is formed by the reaction of nitrogen and hydrogen: N2(g) + 3H2(g) → 2NH3(g) Calculate the maximum mass of ammonia that could be produced when 6.00 L of nitrogen gas at SLC reacts with excess hydrogen gas. The Answer is n(N2) = = mol n(NH3) = 2 × n(N2)...

thanks i was getting really close but not quite but i just realized that there is only one sig fig, so when i round it i get the right answer

An object is projected horizontally with an initial velocity of 3.0m/s A) When will the vertical displacement be 5.0m B) What will the horizontal displacement be at this time Have difficulty's with A

sorry buddy but i have no idea, i am completely stumped on this question

i don't know it doesn't have it, what i wrote down is all the information that we know