1. Homework Statement
my ans is lnx = (-1/y) + c
(-1/y) = lnx -c
y = -1/ (lnx -c ) , but the answer given is (-1/ln x )+ C , how to get the answer given ?
2. Homework Equations
3. The Attempt at a Solution
i think the first one is correct , because the shearing force must be applied in 2 different direction , so that the object will be 'teared' . i think the second 1 is incorrect
1. Homework Statement
why the shearing force acting on the object in the first diagram is in different direction , while in the second photo , it's in same direction ?
2. Homework Equations
3. The Attempt at a Solution
in my opinion , it should be in different direction , because the...
1. Homework Statement
how to know that the nozzle increases the velocity of water by 6 times? it's not given .... and no data for initial velocty given
2. Homework Equations
3. The Attempt at a Solution
that's why i multiply the whole equation with the integrating factor to get the exact equation , however , i didnt get it . Is my working totally wrong ? or which part is wrong ?
1. Homework Statement
in this notes , i was told that the PV=mRT , why ? shouldn't PV= NRT , N=number of moles ? it should be PV = m/M (RT) , right ?
2. Homework Equations
3. The Attempt at a Solution
well, for this part of the notes, why do we need to make r is between L and 1 , and we take r is larger than L at the lower part .... isn't the L itself is the factor r ?
1. Homework Statement
for the alternative form of second shift property (4.8) , why he integral of (e^-sp) g(p+a) dp isn't equal to integral of (e^-sp) g(t) dp ? why it will become L{ g(t+a) } ?
2. Homework Equations
3. The Attempt at a Solution
1. Homework Statement
why we need to make x as absolute value ? as we can see, the original is x , why we we need to make x as absolute value ? is the working wrong ?
2. Homework Equations
3. The Attempt at a Solution
i think i get the idea already . why the distance is distance between the front and back wall ? Isn't teh dstance= distance between the right and left wall as shown in the figure 3-52 ?