Recent content by hydr

Traveling faster than the speed of light constitutes some practical problems, besides having infinite mass. There are quite a few objects in space and all it takes is one asteroid, planet or sun to kill off your multi billion dollar "faster than speed of light" ship. Since you're traveling...

Ok thanks a bunch. I am pretty sure I understand this now.

Ok. Looking at the KCL, I understand, now, how I1 = I4. I also mislabeled my I2 current, it appears it should be facing south instead of north. Using this information and correcting my mistake relating the currents. I now have: I1R1 + I2R2 + E2 + I1R4 - E1 = 0 -I2R2 + I3R3 - E2 = 0...

Calculus II is considered "difficult" because a few of the key convergence theories arent true for their converse. Some people really don't understand that or get it before the exam, so they end up bombing the class. In retrospect, I would rather take calculus II than multi variable...

So in other words, you're saying that since there is no potential difference between the negative sides of the batteries (where I4 is) then there is no current? I am sorry, I am really confused with the current flow thing.

Homework Statement The circuit in the figure is composed of two batters (E1 = 5 V and E2 = 9 V) and four resistors (R1 = 110 W, R2 = 40 W, R3 = 50 W, and R4 = 50 W) as shown. Find I1 and I3 Homework Equations Well we need to apply KCL. I know the respective voltages (Ohm's law) need to...

Ok here's my problem: The acceleration of a car is proportional to the difference between 250 km/h and the velocity of the car. If this machine can accelerate from rest to 100 km/h in 10s, how long will it take for the car to accelerate from rest to 200 km/h? Here is what I've done so...