Recent content by Andres Padilla

So the answer would be R2-R = (5/3)R- 1 R=(3/2) R

Hello, with KE=3 (1/2)(mv^2) where V^2 is GMm/r2

I tried it, but I am not getting no of the given answers According to the statement, it is saying that 3 KE (in the orbit ) = ΔUg So, beeing R the radius of the Earth and R2 the radius of the orbit: 3 (1/2)(GMm/r2) = -GMm/r2 - (-GMm/R) Canceling out the GMm: (3/2)(1/r2)= (-1/r2) + (1/R)...

Homework Statement Good afternoon, I hope someone could help me with this problem, it is killing my head. I have an aerogenerator, I already find the torque excerted by the air (75.8N) and the force transmitted by the gear (1010.6N). The problem comes when I try to draw the free body diagram to...

Yes, I know the best arrangement is with the counterflow heat exchanger. I agree with you, the oil will get closer to 26°C, but how can I prove that with calculations? Because according with calculations, I will get the 46.7°C

I wrote incorrectly one part, I am sorry! The water comes in with 26°C and comes out 18°C.

Homework Statement Hello. First of all sorry about this question, it has to do a little with heat transfer from engineering. This situation is not real, I was working in a proyect and this doubt came to me. I have a heat exchanger of parallel tubes. Water flows in a tube and oil flows in...

But is there any formula that allow me to compute the variation of the magnetic flux knowing the angular velocity and radius of the disk?

Homework Statement Hello, this is like an experiment of engineering.It is called a induction stove. The system consists of a bycicle, where I am going to pedal. This will turn a disk that have 20 small magnets around its circuference. Once the disk starts to turn, it will produce a constant...

Got it! thank to all of you for the help

Alright, that is what I think, so my last approach (and picutre) are the correct.

Homework Statement Hello, I have a problem I don't want how to approach, it is a little weird. It is a problem of equilibrium (torque) The situation and my approach is in the picture I uploaded. A beam is supported by the blue structure. On the beam it is a person(100N) at a distance of 3m in...

Homework Statement When a disk rolls in a surface whitout slip, the velocity of the disk's edge (where it contacts the surface) is zero with respect the surface and the friction force is less than the maximum allowable of Us.N, where Us is the coefficient of static friction and N is the normal...