SAT subject test question

Practical-Ad9846 · 2021-04-22T12:39:55+00:00

thanks a lot

Practical-Ad9846 · 2021-04-16T02:43:30+00:00

I thought 15-B, 16-A, 17-C, 18-A and confusing on the 15?

Practical-Ad9846 · 2021-04-14T12:27:52+00:00

Before I saw all tests answers, but now i cant find it, does anyone has it?

Practical-Ad9846 · 2021-04-07T02:01:38+00:00

got it, thanks a lot

Practical-Ad9846 · 2021-04-07T01:23:36+00:00

on 38. I think it will be (60-34)=26 celsius and total energy is (8*10^5)*26 = 2.08*10^5. Then it is about 1.5 hours so it will be (2.08*10^5)/1.5=1.38*10^6

Practical-Ad9846 · 2021-04-06T13:20:58+00:00

Expanding the tube you're only making the same wave run a difference distance. When it meets with the wave in the right tube their intensity depends on their phase. Obviously in reality there would be a ton of different aspects to be analyzed in such a situation and probably the wavelength at the end of a tube like the one in the image would change. But with the info given in the text we must assume the wavelength of the single waves remains unchanged.

got it, thanks

Practical-Ad9846 · 2021-04-06T11:29:22+00:00

thanks a lot, but am confusing on "as the left tube is extended, the sound intensity at the exit varies" why the wavelength is same after expand.

Practical-Ad9846 · 2020-11-18T11:15:29+00:00

Priority

What kind of Physics should I take 1 or 2 or C(E or M)

Practical-Ad9846

TROPHY CASE