Similar question but how would this hold true for a situation where you have a random number generator producing numbers between 0 and 9 and you are counting their frequency? So you would have a table of one row and 10 columns.
Degrees of freedom is 9?
I am trying to understand how to decide the number of degrees of freedom when calculating a chi-squared and p value.
I have the data:
England:
people with no pets = 665
people with 1 pet = 976
people with 2+ pets = 913
Scotland
people with no pets = 313
people with 1 pet = 527
people...
So if I assume that the second car is the same mass I would get a final velocity of the combined cars after the collision to be 8.575m/s
For the energy lost during the collision would I just need to compare the initial kinetic energy of car 1 before impact with the final kinetic energy of the...
Homework Statement
A car of mass 1500kg is parked on a 30degree slope before rolling down a distance of 30m onto a flat section where it collides with a stationary car. The cars stick together and scrape along the road for 20m until they come to a rest. Calculate the velocity of the two...
Homework Statement
A student measures the the force required topull a box along the floor and then the force required to lift the box onto a table. Which is greater?
Homework EquationsThe Attempt at a Solution
[/B]
Is it the force to lift the box since frictional force is the normal force or...
Homework Statement
I am not sure how to graph the function
f(x)=(x+p)+q
Homework EquationsThe Attempt at a Solution
When x=0 y=p+q
if y=0 x=-q-p ?
what shape would this give??[/B]
Homework Statement
Rotation of a deformed nucleus is predicted to produce nuclear excited states with energies given by E(J)=J(J+1)hbar/2I. The first two excited states of 238 U are Jpi = 2+(0.045MeV) and Kpi=4+(0.148MeV). Show these energies are consistent with rotational excitation stating...
You are right!
That was a typo - it should have been -0.5mv^2
But I am still stuck with the algebra
I have 0.525v^2/c^2 = gamma - 1
How do I rearrange this??
It is not simplifying!
I see, that makes sense.
But when I do this I get
0.05 = [(gamma-1)mc^2 - 0.5mc^2] / 0.5mv^2
which simplifies to
0.6mv^2 = (gamma-1)mc^2
0.6v^2/c^2 +1 = gamma
which is really nasty to solve! Is there a trick I have missed?
Homework Statement
at what speed does the expression for relativistic kinetic energy vary from the non-relativistic expression by 5%?
Homework Equations
Relativistic kinetic energy K=(gamma-1)mc^2
Non-relativistic kinetic energy K=0.5mv^2
The Attempt at a Solution
I'm not...