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Biology; Chemistry; Physics: Post your doubts here!

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4 Consecutive "a" and "c" ..., made my day... Btw i took it in N/m2 is it wrong... dont we find distance like this in distance time graph???
 
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Area under graph.
Triangle + Rectangle.
1
- x 3 x 2.4 + 5 + 2.4
2

The answer was 33.33 for N/cm and and was something big in 3's for the N/m one/

There were four consecutive "a" answers as well as four consecutive "c" answers,


Wait for the pressure one I wrote 33.33Pa. Pascals, is that okay?:eek:
 
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It was area of triangle + area of rectangle. (1/2 * 2.4 * 3) + (5*2.4) = 15.6.
You could do it in both N/cm^2 and Pa.
Constant but not zero was K.E
 
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it said to define "efficiency"
not "percentage efficiency"
i think :D
Then they wud not have mentioned 75% intead 0.75........
they also mentioned efficiency as 75% and not percentage efficiency as 75%...
So it wud be more concise to mention abt the percentage conc in it and all tht..I do concur tht 1 pt is for useful energy or power obtained and other for ratio(multiplied by 100%) :D
 
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4 Consecutive "a" and "c" ..., made my day... Btw i took it in N/m2 is it wrong... dont we find distance like this in distance time graph???
I did the same and its right cause I wrote it in Pa which is N/m²....Also the force you get for the larger piston is same if you took both as N/cm² orN/m2
 
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Ok i got confused in first parts. i thought they were equal but then i said that forward was more cuz lorry was moving/accelerating in forward direction. and in backwrd force i wrote friction :/ . how many marks am i losing here
 
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