Hi Guys, can I get some advice on how do I get started on the question?
I'm guessing that natural convection is the key to solving the question. but i have no idea on how to solve it.
Guys, I've just come across this question regarding planetary gear train.
I was asked to find the rpm of a gear within the train. but the solution given doesn't include the carrier speed within the calculations. I was asked to find the rpms to gear 4. The carrier is between 4 and 6.
What...
1) Find the area enclosed by the curve x=3+cos(t) and y=4sin(t).
My tutor gave me a hint which confuses me.
A=-4 integral y dx where the upper limit is pi/2 and the lower limit is 0.
I do not understand the -4 part. why must we multiply the integral by -4?
2) Find the volume of...
dE in the y-direction= k dq/ (x^2+a^2) X a/sqrt(x^2+a^2)
my bad. it should have been this. A typing error. where could the mistake have been made? i got some weird answer after integrating this.
Managed to find the x-component but I'm having problems with that in the y direction.
I'm taking dE in the y-direction= k dq/ sqrt(x^2+a^2) X a/sqrt(x^2+a^2)
But the answer that i get after integrating it is different from the answer given. Where have i made the mistake?
A rod of length L has a uniform positive charge per unit length λ and a
total charge Q as shown in figure below. Calculate the electric field at point P.
http://www.flickr.com/photos/68849979@N03/6261311950/in/photostream"
Been stuck at this question for some time. Could someone point me in...
P1/T1=P2/T2
1.3 X 10^5 /300 = P2/330
P2=1.43 X 10^5 Pa
No work is done by gas since the volume of the container do not change.
Change in internal energy = heat, W=0
Hence, Change in internal energy = 623.25J
But specific heat isn't given in the question?
i do know what isothermal, isometric and isobaric means but i do not know about the P*V**n = constant equation.
A diatomic ideal gas is in a rigid container at an initial sate of 300K and 1.3x10^5 Pa is heated to a final state of 330K by 623.25J of heat. calculate the pressure in the container after the heating, the work done by the gas, the change in internal energy and the volume of the container. if...
I have the exact same question.
Anyone could help me tackle this question.
I know that the
heat supplied to system=work done by gas+ increase in internal energy of the gas molecules.
But how do i find out the internal energy of the molecules when given specific heat only?
May i also know...