Recent content by GDGirl

Oh, that worked out perfectly... I didn't think about taking the difference of the height ^^'

Yes, I did. Since I need the velocity at the bottom of the tube... I wasn't sure if I should just use one or the other of the heights given or take the height at the entirety of the tube... I'll try the difference of heights though. :/

Rather, if I understood it better. I don't know how that applies to what I'm working on here (I tend to have trouble making connections between things like that) It's not like our work gets checked. I'm just going with the equation that the help suggests.

Homework Statement You need to siphon water from a clogged sink. The sink has an area of 0.496 m2 and is filled to a height of 4.0 cm. Your siphon tube rises 50 cm above the bottom of the sink and then descends h = 93 cm to a pail as shown above. The siphon tube has a diameter of 1.57 cm. a...

Oh, wow, that worked perfectly. Thanks a bunch!

... .309 was supposed to be .307, so that's my mistake. And then.3985 was half of .797 for the length. The change of flux is the top part of the equation for my emf, right? In which case, the time is still just 1, and that would be equal to my emf. If this is the case, I'm still getting the...

Homework Statement A single rectangular loop of wire with width w = 30.7 cm and length L = 79.7 cm is situated so that part is inside a region of uniform magnetic field of 0.407 T and part is outside the field. The total resistance of the loop is 0.244 Ω. Calculate the force F required to pull...

Oh, that makes sense. Thanks!

Homework Statement An elastic circular loop in the plane of the paper lies in a 0.71 T magnetic field pointing into the paper. If the loop's diameter changes from 19.3 cm to 7.2 cm in 0.54 s, a. what is the magnitude of the average induced emf? HELP: Use Faraday's Law and evaluate the...

Oh. Okay, I got it now, thanks. :)

But aren't the directions the same? Both currents are going to the right.

Homework Statement A circular conducting ring or radius R = 10.7 cm is connected to two exterior straight wires ending at two ends of a diameter (see Figure). The current splits into uneven portions, with I1 = 3.8 A passing through the top semicircle, and I2 = 10 A passing through the lower...

I didn't even think about the fact that it could be negative. B is going anti-clockwise, so it's negative. Thanks!

Homework Statement Two long thin parallel wires a distance d = 15.3 cm apart carry 25-A currents (I) in the same direction. The magnetic field is measured at point P, a distance d1 = 13.3 cm from the lower wire and a distance d2 = 5.3 cm from the upper wire. a. Find the x and y components...

Aha, that makes sense. Thanks again!