The first distribution needs equal numbers on the SI and SP cards
You need to fix the second distribution defining the radius of your source. it needs an si and sp line,
Also check you have not removed the line break between the surface cards and data cards
HI,
In all the questions drawing a diagram will help.
7 is adding and subtracting forces in 1 dimension
8 is similar to 7 but with speeds rather than forces
9 draw a diagram to scale
10 draw a diagram and use some trig
Note in question 8 that your wrong with the speed per minute 6km/hr...
I think you are referring to the first value after the FM, which in some literature and depending on what you are multiplying for is referred to as C. Depending on if you want reaction rate, heating and what sort of tally F1, F2, F4 etc then it is different.
There is good information in...
Theoretically All elements and isotopes of each element can be transmuted by bombardment by different particles (alpha, protons, neutrons etc) at different energies.
I don't think you have all the data written down correctly, if 1.7*10^9 is the answer. If you start with 10.3 atoms after one half life there would be 5.15 atoms left and 47*10^9 years would have past but you have fewer atoms left and an answer of less time which is clearly wrong. Unless i...
the question isn't really clear. Are you trying to find the ratio of kinetic energy of the daughter nucleus to the alpha particle? I am not exactly sure if this is right or what level you are studying at but my approach would be
firstly work out the rest mass of the U238, next you find the...
that is the correct equation for the change in height with constant acceleration,
although i haven't checked that your value for the answer to part a is correct i.e. 41.65.
hi,
try
if ((not equal to y) or (not equal to x) or (not equal to Y) or (not equal to X))
which will return true if the answer is not any of x, y, X, Y
hope this helps
hi,
If you break the problem up into a first stage where the bullet is fired from the gun to get the exit velocity, then treat finding the height as a separate problem.
As frozenguy says at the maximum height your final velocity will be zero (v=0) and the acceleration will be gravity...
Hi Gaobo,
The question gives you extra information which you haven't used which is key to getting answer.
I suggest you draw a picture and consider the entire train, currently you have missed the forces relating to coaches B and C.
Hope this helps