Homework Statement
I have to construct a circuit for my Physics class. The circuit must be tripped by a CDS Cell (Detects changes in light) and, once being 'tripped' it must play a continuous sound and make an LED flash on and off.
This picture is of the circuit board we are allowed to...
Find the particular solution to Dy/Dx = 3x^2 + 1 when y(0) = 3
I've looked everywhere for steps to solve this problem, and every website I have been to has taught me how to do a question like this when each side has a Y (is separable) but I can't find out how to do one like the question above...
Homework Statement
Two curves/functions make up one side of a tunnel (the tunnel is symmetrical, so the other side is the same)
Function 1: y = 5 + (2/((x-4)^3))
Function 2: y = (x -1)^3 - 5
I need to find the area of the tunnel, so I can find the amount of dirt that needs to be removed...
2Na + 3S --> Na2 + S3^2-
Homework Statement
So I have the equation 2Na + 3S --> Na2 + S3^2- (the 2- being the charge of S3)
This is the reaction generated in a sodium-sulfur battery.
And all's good there, I can see there are two electrons transferred in the reaction and I know it's a...
Homework Statement
So I have a circuit diagram that looks close to
This picture.
The first bulb in the series is called A, then inner bulb in the parallel is B and the outer is C
The questions
a) Which, if any, is brightest?
b) What happens if you remove C?
Homework Equations...