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Reliability, size and efficiency

Technically, the electrons WOULD move in the direction of the current made, and yes you right about low pressure in reducing collisions. What i was also referring to is the movement of electrons with electric plates affecting its movement

Increasing intensity of light would create photoelectrons----> from the photoelectric effect, thus would increase V and I And from the planck's equation E=hf as frequency increases so too does the V and I and thus each photon would carry increased kinetic energy. Also this increases the total...

discharge tubes are cathode ray tubes, the reason that need to be kept at a low pressure is because to main electron flow in the tube becasue if the elctron flow was high this means that electrons have higher chances that they would collide with air molecules thus preventing current

also remember that the intensity of the spark is affected by the different wavelengths/frequencies of electromagnetic radiation, otherwise know as the photoelectric effect, this is what Herz observed in this experiment

so yeh....they pretty much said it 1= between 2 bodies (i e 2 different planets) 2= gravitation force of ONE body, ie sub in Earth's mass and radius and u should get g=9.8

Re: motor effect prac? The prac test is made to test your SKILLS, and it can be on anything, for example the one that is coming for our prac test is to do with Hookes Law which has nothing to do with the 3 modules we have done so far. What u expect in ur prac test would be a graph(line of...

Your friend is right, because even though aluminium is not magnetic, it still induces a current (eddy current) but reading wont be as high due to higher resistance (valence electrons) Hope this helps a bit..... if not...then i am sorry to make this comment

Re: uai questions/prediction/help, is this possible? please help I just want you opinion on how i am going so far for the HSC, because i just got my report today. First i will give you my exam mark and then i will tell u my rank, after i will tell u my overall rank (mark including all...

GZ.... This is conservation of momentum

i think so...cos if practical exams are about setting the expt on ur own

9d- use projectile motion equations 10a- use centripetal force equation mvsquared/r 10b- since u find part (a) then u can use that speed and substitute in KE equation

OMG... Just put ur face or some other object outside the window, whilst driving, and it would experience a drag....sort of like the aether model concept (aether drag)

OMG... Magnitude=size...in this case the size of the force, which is 300N

probably not.... I have that book, and i dont find it too hard, personally...

1. High voltages: needed to liberate enough electrons, to cause a current Low gas pressure is the type of environment in which electrons can freely move 2. Not sure about the sodium part, but in a cathode ray tube, the electrons would move towards the positive plate (vertical direction)...