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What were the values of K.E , P.E and Height in third question?
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Do u guys want me to prove the ratio question?
Just give me a few minutes.Yes with full explanation since ive forgotten what it was.
Thanks!
I got that wrong but apparently it was 180j 23m 90j and 90jWhat were the values of K.E , P.E and Height in third question?
exactly.I got that wrong but apparently it was 180j 23m 90j and 90j
I wrote alphabets with the numbers =(aw man i got 1:2
i didnt get that for R...the K basic SI units were:kg.m.s^-3.k^-1?
the coin density:12500+or-800?
the sliding box question:1)the two other forces were weight+contact force 2)net force:170 N while 3)R=390 N?
the electricity question:resistance:12 ohms while power in battery:58 W?
the waves question:slit seperation:1.0x10^-3?while for the red wavelength u say -brightness decreases-fringe seperation increases-fringe number increases?
these were my answers im not 100% sure tho
Oh wow I don't remember anything P was VI right? And what if I wrote that the angle at which the Maximas and minimas are formed increases when the red light is used, according to dsinA= nlambda?the K basic SI units were:kg.m.s^-3.k^-1?
the coin density:12500+or-800?
the sliding box question:1)the two other forces were weight+contact force 2)net force:170 N while 3)R=390 N?
the electricity question:resistance:12 ohms while power in battery:58 W?
the waves question:slit seperation:1.0x10^-3?while for the red wavelength u say -brightness decreases-fringe seperation increases-fringe number increases?
these were my answers im not 100% sure tho
Yeah shouldn't R be less than the bet force? I wish I could remember what I wrotei didnt get that for R...
i solved it like this:after getting the net force the only forces causing the acceleration are mgsin(theta) and friction R hence:mgsin(theta)-R=ma "ma is 170 which is the net force we got"solving it gives R but i forgot the values of theta and m so i cant calc it do u remember them?i think 35/30 degrees and i dont remember the mass at all.i didnt get that for R...
Stress = Force/Area, right?:O but why do we subtitute :/?
yeah i got around 49N i think.. and for the slit seperation i got something x 10^-4 not -3Yeah shouldn't R be less than the bet force? I wish I could remember what I wrote
yes P=VI do u remember the voltage in the battery?and the current ?i remember the current was 2.4 u get that from the graph.and the angle is relevant so sadly i think they wont count it u need to mention the fringe's brighness/seperation/number,as the question said.Oh wow I don't remember anything P was VI right? And what if I wrote that the angle at which the Maximas and minimas are formed increases when the red light is used, according to dsinA= nlambda?
It was in a marking scheme when they were comparing blue and red lights so I dunno, but in that question they we had to use the equation dsintheta= nlambda to find dyes P=VI do u remember the voltage in the battery?and the current ?i remember the current was 2.4 u get that from the graph.and the angle is relevant so sadly i think they wont count it u need to mention the fringe's brighness/seperation/number,as the question said.
What did the question say? That we had to give in terms of brightness and the number of fringes? Are you sure it said thatyes P=VI do u remember the voltage in the battery?and the current ?i remember the current was 2.4 u get that from the graph.and the angle is relevant so sadly i think they wont count it u need to mention the fringe's brighness/seperation/number,as the question said.
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