Recent content by banfill_89

pi lol...do i have to add pi? confusion

Homework Statement A block, attached to a spring, is set into vertical oscillation with an amplitude of 25.0 cm and a frequency of 5.00 Hz. At t = 0.00 s, the block is 14.0 cm below the equilibrium position and is moving upwards. Assume that the displacement from equilibrium is given by y...

i finnaly got it. this textbook sucks at explaining this. thanks guys. sorry dick i was confused at first cause u said let u= 16x^2+1 and i already used u. i get what you were saying now and it makes a lot of sense. thanks!

? so am i integrating by parts again?

what would be the substituition? in the book after thsi they factor out a 1/8...im lost

integration by parts! MIDTERM...really quick question...please help! Homework Statement \int arctan4t dt Homework Equations The Attempt at a Solution ive been attempting this all day. the answer is t arctan4t-1/8 ln(1+16t^2)+C i get this asnwer up until the 1/8... a...

ohhhhhhh. makes a lot of sense...thanks alot

thanks! sorry for the late reply

integration by parts! MIDTERM...really quick question...please help! Homework Statement Evaluate the two following integrals: \int xcos5x dx and \int ln(2x+1) dx Homework Equations The Attempt at a Solution ok, for the first one, the answer is 1/5 x sin5x +...

BOOBIES...actually a question on limits approaching infinity...please help Homework Statement lim x^2-x^4 x>Infinity Homework Equations i made both of them...e^(2lnx)-e^(4lnx)...then get stuck im allowed to use limit laws, and no l'hospitals rule The Attempt at a...

Homework Statement lim (root*(6-x) -2)/(root*(3-x)-1) x->2 Homework Equations i know in a normal limit if a square root was on the top of bottom, you would multiply it and so on so on...but the fact that there is a square root on the top and the bottom is throwing me off...

Homework Statement cos^2 x-cos x- 1= 0 Homework Equations several trig identities involving cos The Attempt at a Solution i tried applying identites everywhere, no luck. I've tried using it as a trinomial...no luck...and I've tried adding one to both sides and still no...

i don't think you can write the forward force of a bicycle as an equation of sin...im pretty sure the equation would be a little more complicated dealing with gears and what not...i could be wrong...thats just my thought...

i think he's asking more about how Newtons third law is displayed by a rocket...Newtons third law states every action has an equal and opposite reaction...so the the force of the exhaust gas from the rocket helps push the rocket forward. rocket pushes on exhaust gas, exhaust gas pushes on rocket...

thats what i keep doing...