A wave generator produces 28.6 pulses in 4.10 s

  • Thread starter Thread starter DDRchick
  • Start date Start date
  • Tags Tags
    Generator Wave
AI Thread Summary
The wave generator produces 28.6 pulses in 4.10 seconds, leading to a calculated period of approximately 0.143 seconds. The frequency, derived from the period, is about 6.9756 Hz. The relationship between period and frequency is confirmed as T = 1/frequency. The discussion highlights a common misunderstanding in calculating these values, with users correcting their approach. Overall, the calculations illustrate the fundamental principles of wave mechanics.
DDRchick
Messages
27
Reaction score
0
1. A wave generator produces 28.6 pulses in 4.10 s.

(a) What is its period?
*solved*
(b) What is its frequency?
*solved*
2.
period= 1/freq.
v=wvlngth (freq)
wvlngth= v/freq
3. i tried to find the number of pulses per second, which I think is 6.9756...
idk what to do from there x.x
 
Last edited:
Physics news on Phys.org
Periodic time,T, is the time taken for one pulse.
 
so T= 4.1/28.6?
which would be 0.143...?

LOL i was doing it reversed gosh I am so dumb xD thankss :)

and so its frequency would be 1/0.143. Okay n.n Thanks for straightening me out. :)
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
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}...
Back
Top