Recent content by electronicxco

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...

can you explain please? i know that power P= current(I) x Voltage (V) which v and I should i use?

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...

wow..thanks for catching my mistake!

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...

here is the problem: http://i45.tinypic.com/xgi3qd.jpg I don't know how to solve it.