Calculating Period for Simple Harmonic Motion in Physics Lab

AI Thread Summary
The discussion centers on calculating the period of simple harmonic motion in a physics lab. The initial question confirms whether the formula provided by the instructor, which is time divided by the number of oscillations, is correct. Some participants express confusion, noting that their instructor later suggested using the number of oscillations divided by time instead. This indicates a potential discrepancy in the instructions given by different instructors. Clarification on the correct formula is essential for accurately completing the lab assignment.
tralblaz
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First, I hope this area is the right one for my question. I am working on a lab for Phyiscs I. The lab title is "Simple Harmonic Motion". Okay her is the deal and the question. My instructor told us to find the period by dividing the Time recorded by the number of oscillations (back and forth motion) (see below)
Time/ Number of oscillations (back and forth motion)
Is this the correct formula?
Thanks,
:confused:
 
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tralblaz said:
First, I hope this area is the right one for my question.

Homework goes in the Homework Section.

My instructor told us to find the period by dividing the Time recorded by the number of oscillations (back and forth motion) (see below)
Time/ Number of oscillations (back and forth motion)
Is this the correct formula?

I don't see what you're confused about. Your instructor told you the formula.
 
I just wanted to double check to make sure, because after my instructor told us to use the formula that way, he came baack and told us to use thr formula as the number of oscillations (back and forth) divded by t (time)
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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