elastic collision: a neutron of mass 1.00 u traveling with velocity 6.50 x 105 ms-1 collides head on with a stationary carbon atom of mass 12.00 u. The carbon atom moves off in the same direction with velocity 1.00 x 105 ms-1. Calculate the velocity of the neutron after the collision. State what happens to the kinetic energy as a result of this collision.??????????????????
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Physics: Post your doubts here!
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Because g is the ratio of force to mass, and g can be defined by the acceleration due to gravity too.
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by increasing the frequency, why is the no of loops increasing? :s
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higher frequency = smaller wavelength = more loops per unit distance.
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what is the assumption supposed to be in part two?
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what are the effects of increasing slit width keeping slit separation constant ?( in double slit experiment) apart from greater brightness of Bright fringes?
no change to fringe separation
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can anyone answer this question plz ???????
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http://theallpapers.com/papers/CIE/AS_and_ALevel/Physics (9702)/9702_w12_qp_22.pdf
Q. 7 ) e).. please
thnx.
Q. 7 ) e).. please
thnx.
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One reaction produces 13.8MeV of energy.
13.8MeV = 13.8 x 1.6 x 10^-19 x 10^6 = 2.208 x 10^-12 J
So one reaction makes that much energy.
We want 60J per second. (60W)
So number of reactions required per second = 60J / 2.208 x 10^-12 J = 2.7 × 1013
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is it true that fewer fringes will be observed?
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Got it. Thanks.
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About rounding up in AS physics paper 2....
There are a lot of calculation questions in physics, right? Also, there are many parts in each questions, and some of them are continuous, so we have to use the answer of the previous answer. For that case, the result is sometimes different from the marking scheme due to rounding up from the previous part, right? Thus, would they recognize it and mark it as right even if it's different from the marking scheme? I really want to know it because those kind of things look random in mark scheme for me, they sometimes use rounded up answer and sometimes they don't.
There are a lot of calculation questions in physics, right? Also, there are many parts in each questions, and some of them are continuous, so we have to use the answer of the previous answer. For that case, the result is sometimes different from the marking scheme due to rounding up from the previous part, right? Thus, would they recognize it and mark it as right even if it's different from the marking scheme? I really want to know it because those kind of things look random in mark scheme for me, they sometimes use rounded up answer and sometimes they don't.
No. When you increase the width of the slit, you are increasing the intensity of the light. So the results will be that the bright fringes are brighter, no change to the dark fringe and no change to fringe separation. If there are lesser bright fringes then the fringe separation would change.
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In absence of air, time to reach max height = time to reach ground, right?
In presence of air, time to reach max height > time to reach ground?
In presence of air, time to reach max height > time to reach ground?
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How to find out phase difference?