Homework Statement
Find the power dissipated by the 8 ohm resistor.
This was an example for source transformations.
Homework Equations
P=VI=V^2/r=I^2*R
V=IR
The Attempt at a Solution
First I transformed the 1 amp current source and 20 ohm in parallel
to a 20 V voltage...
http://i39.tinypic.com/28akmfk.jpg
Ultimately, I am trying to find power dissipated by each resistor.
I already applied node voltage analysis to the circuit.
The picture shows the diagram of the problem and my attempted solution/ equations I came up with. In the diagram, I labeled...
Here is the problem and the choices:
Calculate the centripetal force exerted on
the Earth by the Sun. Assume that the period
of revolution for the Earth is 365.25 days,
the average distance is 1.5 × 10^8 km and the
Earth’s mass is 6 × 10^24 kg.
The choices are:
1. 3.56775 × 10^22 N
2...
A 2.91 kg object is swung in a vertical circular
path on a string 3.94 m long.
The acceleration of gravity is 9.8 m/s2 .
If the speed at the top of the circle is 7 m/s,
what is the tension in the string when the
object is at the top of the circle?
can you show the formulas needed to get...
I have found for the integral of x(lnx)^2 dx to be :
((1)/(4)x^2)(2(ln(x)-1)ln(x)+1)
but i need it to be in one of these forms:
these are the choices:
x^2((lnx)^2 + lnx- (1/2)) +C
1/2 x^2 ((lnx)^2 +lnx + 1/2) +C
x^2((lnx)^2 + lnx + (1/2)) + C
x^2((lnx)^2 - lnx + (1/2)) + C
1/2 x^2...