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Don't hesitate to ask quarries Sagar!
Check is this method correct...
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We use F = kx
so we know k for P and Q is k and for R is 3k
--> Therefore total extension of P and Q = k + k = 2k and extension for P,Q and R = 1/2k + 1/3k = (5/6)^-1k = 6/5k
so F = W, k = 6/5k and x = ?
W = 6/5k * x
x = 5w/6k
That's alright, no probs!
Link ?ok
Q15 and Q19 please. Im really bad in P1
Sweet working :¬
Q37 bhi please
15)
its B15)
Answer should be zero
Hadi Murtaza
ZaqZainab
19)
you need to find the power input... power = work done / time
work done = F x D or rather F here as Weight =mg = to find mass you use the formula density = mass/volume= 1000 x 340 = 340000... now converting it to weight x 9.8 = 3332000 ... Work done = 3332000 x distance (30 ) = 99960000
for power it has to be per second and youre given in the question per minute so you divide by 60s = 99960000/60 = 1666000 mnow thats the power in to find the power output you multiply bv the efficiency of the turbine generator = 1499400 = 1.5 MW
37)
-->After voltage passes through some resistance it will decrease
-->The higher the resistance the greater the decrease in voltage
-->So it will decrease less after passing through 2 ohm than when passing through 4 ohm
Why?its B
(10*10^-2*2) =0.2for anti clockwise
Take moments about pivot
Make a new convo b/w us...
for finding the acceleration with lowest speed you have to divide no of protons with atomic mass
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