Recent content by i-love-physics

I found the answer to the questions. I used principles of superposition. You could have told me to just read about principles of superposition but you probably had no clue yourself. Thanks for trying though.

ok so if s3 = (25000)*(1500) / (70000)*(490.87) then = 1.091 mm so what do I do now to find t1 and t2?

Thanks for the help so pretty much s2/s1 = t2/t1 and L*s3 = t1*s1 + t2*s2 k so how do i figure out what s3 is?? as the formula for deflection is (T)(L) / (E)(A) for s3 what would the L be? and what would the e and a be? I am still lost :(

The problem is that there are too many unknowns when I try and find the reactions. For example If I take moments at A = 0 Then Force CD is a unknown and Force EF is a unknown IF i take moments at C = 0 Then force Ay is unknown and Force Ef is unknown I am stuck :(

Hello Everyone I have a mechanics of materials questions which I have been stuck on for hours, I just can't figure it out. Attached is the questions. I know the formula for deflection which is PL/ AE but what do i do with that formula in this situation? Any help would be...

so what i did was corrent, i just got to use the quadradic formula and that's it yeh?

Homework Statement The force (in Newtons) that air exerts on a surface is given by the formula F = 10^5A Where A is the surface area (in square metres). Suppose that the air supplies 10^6 Newtons of force on a rectangular surface that is 2 metres longer than it is wide. Find the...

thank you, thank you, thank you, thank you, thank you SO MUCH!. I realize what i did wrong, i was using the wrong identity, you know how cos2a = 2sinx^2 -1 I was using that identity instead of the sin^2x + cos^2x = 1 identity. Just out of curiousity, say i used that first identity...

Homework Statement Solve for X Homework Equations 2sin^2x - cosX - 1 = 0 The Attempt at a Solution I have gone in this order I turned 2sin^2x into 1 - cos2x so 1 - cos2x - cosx -1 = 0 This turns into Cos2x + cosx = 0 I don't know what to do next... could...

Homework Statement Solve for Y in terms of X Homework Equations 2log_5X/ log_53 - log_5Y = 2 The Attempt at a Solution I know all the properties of logs, i just don't know how to apply them to this problem. The answers in the book are . y = 1/25x^2/log_53 When i am...

Okay i understand this but this leads to a more complicated problem T - N = log2 N The exponential form therefore equals = 2^x-y = y NOW, if the question ask you to sketch a graph for this function, how would you do it??, it would be impossible because in order to get the value of...

Is T = n + log2 N the same as T = Nlog2 N? How would you write T = n + log2 N as a exponential form would it be 2^t-2 = N or would it be 2^t = N^N or would it be 2^T/n = N :(?

i think i am starting to get it... In my book it only talks about Y = logb X It didnt say anything about Y = M logb X I think i see the picture now. Thanks for the replys.

lets say for example 4 = log3 81 that in exponential form would equal 81 = 3^4 so that means for Y = logb X The exponential form is X = B^Y so when i am giving the equation N = 0.2 log4 V when chaning that to exponential form does that give me V = (0.2)(4^N) ? i just...

Homework Statement Write this logarithmic form into exponential form Homework Equations N = 0.2 Log4 V The Attempt at a Solution I tried V/0.2 = 4^N doesnt seem to work. I've tried doing various inverse functions but that doesn't seem to work either, giving me a headack :(