Homework Statement
I'm having a hard time differentiating when to use log instead of ln, vice versa. Are there any general rules to follow?
For example I have to evaluate 4u^-3 + u^-1.
Homework Equations
f'(1/u) = log u
f'(1/u) = ln u
The Attempt at a Solution
I put -2u^-2 + log(u) but the...
Thanks for the help guys, a buddy of mine solved it and showed me how. I wasnt simplifying x-5/2 into 2x-5 and x--3/2 into 2x+5 before is subbed in my vertex values and that's where I went wrong
[Note: Thread moved to this forum by a mentor]
Hi all, the full question is:
A parabola has zeroes at 5/2 and -3/2 and has an optimal value of 4. Determine equation of the parabola in factored form.
So I started out with 4 as my y-value on my vertex then took the zeroes(5/2 and -3/2), added...
Yes i have paraphrased it because it was c) of a question. To find acceleration would I combine the masses of the carts since theyre in contact? If I did then it would be
FNET=sigmaF
FNET=120N
FNET=ma
a=m/FNET
=80kg/120
.666m/s/s.
Homework Statement
Determine the force acting on a 30kg cart by a 50kg cart if the 30kg cart is pushed into the 50kg cart with a force of 120N.
m1=30kg
m2=50kg
Fa=120N
Homework Equations
FNET=ma
FNET=sigmaF
The Attempt at a Solution
Im really confused on where to start here. I was thinking of...
No, we haven't learned that in class so we wouldn't be allowed to use it as a reason on a test or lab. I am just trying to think of a reasonable explanation as to why. I did the experiment but there didn't seem to be correlation between the two variables.
Homework Statement
I am wondering how the mass of a ball affects the percentage of energy loss when the ball bounces.
Homework Equations
Ep=mgh
eff=eout/ein x 100%
The Attempt at a Solution
1)I don't think it affects them because if the ball is heavier but still made of the same material it...
I am wondering how the mass of a ball affects the percentage of energy loss when the ball bounces
1)I don't think it affects them because if the ball is heavier but still made of the same material it has the same elasticity and density only mass has changed. But if all of the starting Ep goes...
Homework Statement
Another question regarding pool. I need to know how much force applied is given from the cue to the ball as well as force of friction
OF CUE:
a=56.55m/s2
vi=0m/s
vf=3.28m/s
d=.0953m
m=.55kg
BALL:
m=.17kg
*not sure whether to use distance traveled during contact or of the...