Recent content by uno

ok, they gave me 10 cm by 10 cm by 10 meters, but I'm not sure what step to take next

1. I can't seem to find a formula to figure out the area of an upright rectangular glass rod. Can someone point me in the right direction? 2. The Attempt at a Solution

1. A man leans down on a cane with a vertical axial force of 98 N. The narrowest part of the cane has a cross-sectional area of 4.0 cm2. What is the maximum compressive stress in the cane in MPa 2. Stress = F/A 3. I first changed 4.0cm^2 to .04m^2. I then took 98N/.04m^2 = 2450 Pa...

I found a new formula. P = Pa + Pg. My question is: when I use P= density x gravity x height, what value do I enter for the height? 3.5 or 2.5? Thanks

1. A rectangular tank 2.0 m by 2.0 m by 3.5 m high contains gasoline, with a density of 0.68E3 kg/m3, to a depth of 2.5 m. What is the gauge pressure anywhere 1.2 m below the surface of the gasoline? 2. P=Ps + Pl Pl=density (g) (h) 3. I'm sure this is an easy problem, but I...

Yes, I got it. Thanks again.

I apologize for jumping to offense. I just get frustrated with all of this and it takes me a while to understand some of the problems. Thanks for helping out.

You know what DICK? I am studying physics for the 1st time and I am working very hard at it so I would appreciate a little courtesy for those of us who "aren't as smart as you"

1. Determine the moment-of-inertia in kg/m^2 of a solid disk 0.51 m in diameter, having a mass of 5.0 kg. 2. I=mr^2 3. I thought the formula was I = mr^2. Mass = 5kg and the radius = .255m, but when I enter the answer of .325 it is incorrect. Am I using the correct formula? Thanks.

In order to figure out the distance of Harry, don't we need to figure out the distance of Gretchen? I'm not sure what valut to put in for L where you have 8-L.

I forgot to include: They are looking for the distance in meters from Harry. Thanks

1. Harry, who weighs 360 N, and 170 N Gretchen are about to play on a 8.00 m long seesaw. He sits at one end and she at the other. Where should the pivot be located if they are to be balanced? 2. F1R1 = F2 R2; F1=360N F2 = 170 N. The problem gives the total length, and I know I need to...

I got it! Thanks so much for your help.

1. A variable speed electric drill motor turning at 100 rev/s is uniformly accelerated at 53.0 rev/s2 up to 210 rev/s. How many turns does it make in the process? 2. (Accel f - Accel) i x speed 3. I took 210 - 53 = 157 and multiplied that by 100 and that gave me 15,700 rev. This...

I tried to take 4.64/4.11 = 1.13. I then to the cotan of that answer to get 48.47 degrees. Am I on the right track? Thanks