Recent content by Capncanada

Homework Statement Water flows through a 1.3 cm diameter pipe into a 295 L bathtub, which it fills in 5 min. What is the speed of the water in the pipe? Homework Equations V_in=v_L*t*A_L (Equation I got in my class lecture, I think its a variation of bernoulli's.) The Attempt at a...

So I can plug in x as A so that A cancels out here and then solve for t where T = 1/2?

Uhh x goes to A? Which equation can I use to solve for that? x=Acos(ωt)? Sorry I'm braindead been studying all morning I just want this homework done.

When the mass goes into the spring and back?

Homework Statement A mass-spring system has k = 105 N/m and m = 1.75 kg. If it is undergoing simple harmonic motion, how much time does it take the mass to go from x = A to x = 0? Homework Equations T=2pi*sqrt(m/k) The Attempt at a Solution Tried plugging in the values for the...

I'm a biology major, physics is a major requirement for me to graduate. I'm good with the other sciences, not so much in mathematics.

Okay, so for the instantaneous velocity you need to derive the function with a position function. I got the correct answer, thank you. My calculus teacher was really sub-par, I barely passed the class, had to do a ton of tutoring. That was a year ago, need to scrub up I guess.

Are you sure there's not a simpler way to solve this? I don't know how to derive this down...

It's x=Acos(ωt), I should've clarified. We've never had to take any derivatives for this class, but I'll try.

I have, I just can't recall how to obtain the value needed here, which is why I'm coming for help.

I can't think of how to obtain velocity from the position function.

By dividing the position by time

Would the angular velocity be the bungee sway as the jump goes on? I don't really understand it to be honest... Are you saying we don't use the given equation in this question?

Homework Statement A bungee jumper undergoes simple harmonic motion with amplitude 6.9 m and frequency 0.115 Hz. Assume the bungee jumper follows the simple harmonic motion equation x=A\cos (\omega t). Find the velocity of the jumper at 0.25s Homework Equations x=Acos(\omega*t)...

So I'll be subtracting the second ships momentum* since it's moving in the opposite direction, correct?