Recent content by sreeram

Thanks for correcting my mistake. I assumed that one of the screws can come from A and another can come from B. My teacher assumed that both screws are either from A or from B. I found out the following: P(G1 ∩ G2)=P(G1 ∩ G2|G1A ∩ G2A)P(G1A ∩ G2A)+P(G1 ∩ G2|G1B ∩ G2B)P(G1B ∩ G2B)+P(G1 ∩ G2|G1A...

Question: All the screws in a machine come from the same factory but it is as likely to be from A as from factory B. The percentage of defective screws is 5% from A and 1% from B. Two screws are inspected and the first is found to be good. What is the probability that the second is also good...

You will have to do separate integration. If you take the limit all the way, then the area that you get will be the area of curve above x axis minus area of curve below x axis. So you should separately take the limits. For example, integral f(x)= sin(x) from 0 to 360 degrees is zero...

Thanks for the answer. But how did they found this relation?

yes. I am dealing with ideal gas

Bigger area minus smaller area will give the positive area. Also limits from -5 to -3 or -3 to -5 is optional.If Integral value from -5 to -3 is positive, then integral from -3 to -5 will be negative. Whatever way you do the integration, if you are finding the area, then take only the positive...

mCv(t2-t1) is the heat required to raise the temperature of mass 'm' from t1 to t2 at constant volume. But adiabatic process is not a constant volume process. My question is how does this equation give the value of change in internal energy?

Okay, once you have all the sides of the second triangle, apply cosine rule a*a=b*b+c*c-2*b*cosA where a, b and c are the sides opposite to angles A, B and C of triangle ABC. Thus you can find an angle of the triangle. then apply trigonometry. altitude=side*sinA. This should solve your problem

how did you find the sides of second triangle?

In polytropic process internal energy change is=mCv(T2-T1)? why is it not mCp(T2-T1)? Why are we not taking specific heat at constant pressure?