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http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf
MCQ 31. How is the answer C? Won'y the field decrease as the distance increases?
The electric field strength is constant between the 2 charged metal plates.
what is the answer? is it 100 N or 200?A hose ejects the water with speed of 20m/s on the vertical wall.The cross-sectional area of the jet is 5x10^-4. If the density of the water is 1000kg/m3, find the force acting on the wall.(water comes to rest after hitting the wall)
Need help!!
What about the formula E= V/D? it shows E is inversely prop to Distance b/w the plates and I've read an MCQ as well, that validates this relationship.
That is for when if the charge is moving from one plate to another plate.
Its 200N how?what is the answer? is it 100 N or 200?
u see that train will overtake the other train when there distances will equal.
the 1st train is travelling with constant speed hence no acceleraion
the 2nd train is acclerating from rest hence no inital speed
using the formula
s=ut+0.5at^2
for the first train
s=10t
for the train starting from rest
s=0.5*0.5t^2
placing both equations equal to each other.
10t=0.5*0.5*t^2
solve nad get 40s
concentrate on the base units of each quantity.Its 200N how?
its DIs the answer A?
its D
q20 plz
S Level/Physics (9702)/9702_s12_qp_12.pdf
Q:30
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