Physics, 06.11.2019 19:31 tina7659

Hi everyone, i'm a mechanical engineer student from italy!
my physics professor during one of his lectures gave us the exact same demonstration about the different distribution of charges on smaller radius corners that walter lewin gave in the first 4 minutes of his online lecture "8.02x - lect 6 - high-voltage breakdown, lightning, sparks, st-elmo's fire" (you can find it on yt. he eventually told us at the end of the lecture, that the demonstration is fundamentally incorrect, and that there is a profound conceptual assumption (no wrong calculus) we made that is profoundly false.. but he then said that, despite that wrong assumption, that model works pretty well at explaining why that happens.
he then gave us the task to find the wrong assumption we (and you) what would you say about that?

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 20:00

What statements accurately describe atoms

Answers: 1

Answer

Physics, 22.06.2019 04:10

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Answers: 3

Answer

Physics, 22.06.2019 22:00

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.

Answers: 2

Answer

Physics, 22.06.2019 23:00

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.

Answers: 2

Answer

You know the right answer?

Hi everyone, i'm a mechanical engineer student from italy!
my physics professor during one o...

Questions