Recent content by ArcadianGenesis

Homework Statement Like all equilibrium constants, Kw varies somewhat with temperature. Given that Kw is 3.49e-13 at some temperature, compute the pH of a neutral aqueous solution at that temperature. Homework Equations Kw = [H+][OH-] pH = -log[H+] The Attempt at a Solution 3.49e-13 =...

What exactly do I need to do with the 1.1 difference in heights? If anything, I thought that would be the displacement.

What should be negative? I gave the answer y = -1.54, and I actually have tried several other answers close to that. Also, I'm not using a textbook; I'm entering answers into an online homework service, so I don't know what the right answer is until I figure it out myself. Any idea what...

Homework Statement A man jumps from the top of a building to the top of another building 3.7 meters away. After a running start he leaps at an angle of 14 degrees with respect to the flat roof while traveling at a speed of 5.1 m/s. The acceleration of gravity is 9.81 m/s/s. To determine if he...

I actually have another problem of the same type - didn't want to create another topic. Homework Statement A motorist is traveling at 12 m/s when he sees a deer in the road 43 m ahead. If the maximum negative acceleration of the vehicle is -7 m/s/s, what is the maximum reaction time...

Homework Statement A rocket launched from the ground rises vertically with an acceleration of 30 m/s/s for 9.1 s until its motor stops. The acceleration of gravity is 9.8 m/s/s. Disregarding air resistance, what maximum height above the ground will the rocket achieve? Answer is units of km...

Haha, nice. I was having one of those mental blocks that just would not allow me to think of that. Thanks.

Homework Statement The rectangular and polar coordinates of a point are (x,y) and (r,theta) where x = 7 and theta = 52 degrees. Determine r and y. Homework Equations r = srt(x^2 + y^2) theta = arctan(y/x) x = rcos(theta) y = rsin(theta) The Attempt at a Solution I tried to...