Recent content by johnsonandrew

Ohhh okay. Thank you!

I don't understand: u^2=2x \leftrightarrow udu=dx

following you so far

Homework Statement Find the indefinite integral. ∫ (1/(1+sqrt(2x))) dx Homework Equations ∫ 1/u du = ln |u| + CThe Attempt at a Solution I tried a couple 'u' substitutions, which didn't work out. I also tried rationalizing the denominator, but that didn't help. No one I've talked to knows how...

Ahhh and it did. It gave me 1.6! Thanks a lot!

Ohh. I was wondering about that. So on the right side down would be positive if I took up to be positive on the left?

Looks right to me.

Homework Statement Three objects are connected by light strings as shown in Figure P4.62. The string connecting the m1 = 5.00 kg mass and the m2 = 4.00 kg mass passes over a light frictionless pulley. a) find the acceleration of each object and b) the tension in the two strings...

Alright awesome. Thanks a lot for the help.

Awesome, thanks a lot.

No, you're right, and I understand that. I'd much rather know how to do the problem longhand. Unfortunately my high school is not big on physics, so the only AP course offered this year is calculus-based. The prerequisite for the class is only pre-calculus, not calculus, surprisingly. It only...

Well I tried putting \int [ -Fi [ 1 + (4.0t - 2.0T)/T ] ] / m , t into my TI-89 and it didn't integrate. It simply returned " -\int [ Fi [ 1 + (4.0t - 2.0T)/Tm ] dt I figured it couldn't be integrated since the calculator won't do it, and that I must have set it up wrong. I guess not. Is...

Homework Statement A robot working in a nuclear power plant moves along a straight track. If it experiences a force F(t) = -Fi [ 1 + (4.0t - 2.0T)/T ] where T is a constant with the units of time, what is the instantaneous speed of the robot at the very end of the interval 0 \leq t \leq...

I'm overwhelmed, and its difficult to know if I'm getting the right opinions on colleges, since I rarely hear the opinions of people who actually know a bit about the field. I'm a senior in high school and its about time I start applying to colleges. I'm thinking I'm going to major in...

Newton's Laws Problem--confused This has been frustrating me: Problem: The pulley in the figure is essentially weightless and frictionless. Suppose someone holds on to m=10.0 kg and accelerates it upward at 4.905 m/s/s. What will then be the tension in the rope given that M=10.0 kg...