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Search results
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how physics p42?
the only devices available were a fixed resistor , a thermistor and a 4v cell -
how physics p42?
just wrote 4. forgot to look at the axis. was the milli already there or did we have to write 4x10^-3? -
how physics p42?
it was like this 4V --1-- fix resistor --2-- thermistor--3--0v vout -> 3 to 2 -
how physics p42?
as the temp of the thermistor changes , the p.d across it will also vary. -
how physics p42?
the 1st and 2nd answers look about the same to me but maybe i`m wrong. i wrote rotate the solenoid instead -
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how was chemistry p52?
i`m pretty sure that the graph in the 1st question was increasing until saturation. by increase , i mean the temperature CHANGE and not the temperature. to sum up , my graph was like this: y-axis - temp change x-axis - conc graph starts at (0,0) straight line till saturation point where it... -
how was chemistry p52?
for the 1st curve , as temp increased , solubility also increased this must mean that dissolving the solute is endothermic ( hydrated salt) as for the 2nd curve , increasing temp decreased the solubility ----> exothermic ( anhydrous salt) -
how was chemistry p52?
well i think the 1st curve will shift to the left and so will the transition temp( decrease) -
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Mathematics: Post your doubts here!
what other double formula? u mean cosec2x and stuff? -
Mathematics: Post your doubts here!
let Z= 2x-Y express : 3cos(Z)+4sin(Z)=2 in the form Rcos(Z-A) = 2 R = root(3^2 + 4^2) = 5 A = acrtan (4/3) = 53.1 degrees(convert to radian if you want to) solve 5cos(Z-53.1) = 2 -
Mathematics: Post your doubts here!
sin2x = 2cosxsinx cos2x = 2cos^2(x) -1 tan2x = (2tanx)/(1-tan^2(x)) -
Mathematics: Post your doubts here!
tan2x = sin2x/cos2x integration of sin2x/cos2x = -0.5(ln(cos2x)+c = o.5ln(cos2x)^-1 +c = 0.5ln(sec2x) +c use the double angle formula for this one cos^2(x) = (cos2x+1)/2 -
How was Physics paper 52?
well thats a close one. the worst line is likely to be the same for all those who plotted the points accurately. only the best line will differ. oops i also forgot to label the lines.damn it -
How was Physics paper 52?
the weird thing for me was that the error in y-intercept was like +-2 which is greater than the actual value of y-intercept -0.5 but now that i think about it this is possible in certain circumstances but how was i supposed to write it down -0.5+-2.0????? lol this looks... -
physics 22
value of PQ got to be .18 work can be done to increase or decrease energy of a particle in a system. an example of decrease of energy would be a braking truck. frictional force opposes the motion of the truck and decreases its kinetic energy we`ve got to use area under graph in this question... -
How was Physics paper 52?
current, number of turns in coil and voltage for question 2 y-intercept = -0.5 what about you? -
Mathematics: Post your doubts here!
here`re the values of 2x-Y : -0.232, 2.09, 6.05 -
How was Physics paper 52?
what intercept did you guys get? was it around 14 or was it a small number (less than one.....maybe negative)