Recent content by student 1

ok, I'll try them both! Thanks!

So do I use the 60 mm or the 150 mm? I figured I was trying to over think it.

Homework Statement An automobile windshild has dimensions of 60 cm by 150 cm. What minimum tolerance in mm is needed to prevent the windshield from breaking if the temperature changes by 200 degrees Farenheight? (The linear expansion coeffecient of galss is 9 x 10^{}-6 (C)-1 Homework...

Minger you had it right. You do have to assume that there is a change in velocity since there is a change in the elevation. However, the way the problem is stated it would not seem that you could do that. So, once you have found the velocity of the second spot 3m above you can use the continuity...

Well, I know you are suppose to pretend the pipe does change and find the change in velocity that would occur for the pipe. Then change the pipe's radius to allow for the speed of the water to flow the same as the pipe on the ground, Any help with this problem please!

No, the problem states that there is no change in pressure or speed. With that being said I assume since the Pipe has changed elevation the Pipe has to change the radius to accompany the fact that there is not a change in the pressure or speed. The Answer is supposedly 4.3 cm, but I have no clue...

Homework Statement Water is flowing through a pipe of radius 4 cm with a speed of 15 m/s The pipe increases 3 M in height with no change in pressure or speed. What is the radius of the pipe in cm at this new height?Homework Equations P1+1/2\rhoV12+\rhogY1=P2+1/2\rhoV22+\rhogY2 The rho's are not...

Homework Statement What would be the product of a Hyrdroboration/ oxidation reaction of 1-methylcyclopentene with deuterated Borane, BD3? Homework Equations The Attempt at a Solution I know the solution for a reaction with BH3. However, would this give you the same answer or a...

Well would you know (a) since it accelerated constantly for 2 seconds to a angular speed of 2n radians/ sec.? or do you have to have another formula?

Well i just need to know how to begin. I know If A is only in the x,y plane and B is only in the x,y plane then there's no way that's possible. However i don't know how to determine it with 3 different axis.

I'm sorry this may not help but it moves with a constant angular acceleration to reach an angular speed of 2n radians/ sec in 2.00 seconds.

So, \thetaf=\thetai+\omegait+1/2\alphat2 With that I know my Initial's are zero because it starts from rest, How do I know my \thetafinal

Homework Statement Can A X B = B? If so, find A, and illustrate with a picture B. If A=Axi+Ayj, find B such that A X B = Ayi-Axj Homework Equations I know A X B= ABsin\theta The Attempt at a Solution

Homework Statement A wheel starts from rest and rotates of 2\pi radians, sec in 2.00 seconds. A. find the magnitude and direction of the angular acceleration. B. Find the angle through which the wheel rotates in this time. Homework Equations I'm guessing you would use a form of...

Homework Statement A ball is thrown vertically from y=0 with velocity V0. Using only energy considerations, find the following a. Ymax in terms of V0. B. The Velocity(V1/2 at y= 1/2 Ymax (in terms of V0 Homework Equations Ki+Ui=Kf+Uf The Attempt at a Solution I'm not sure how to...