Torque on Two Different-Sign Charged Objects

  • Thread starter Thread starter denfaro
  • Start date Start date
  • Tags Tags
    Charged Torque
AI Thread Summary
The discussion revolves around calculating torque for two differently charged objects. Participants confirm that the calculation has been completed as required by the exercise. There is a suggestion to ensure that the units for torque are correctly noted. The conversation emphasizes clarity in the final steps of the calculation process. Overall, the main focus is on verifying the completion of the torque calculation.
denfaro
Messages
8
Reaction score
2
Homework Statement
Almost Done.
Relevant Equations
T=p*e
Hi I am confused in this question. What Can I do after the steps in second photo?
questıona.jpg
answera.JPG
 
Physics news on Phys.org
denfaro said:
What Can I do after the steps in second photo?
I think you are done: you have calculated the torque, which is what the exercise asked...
 
  • Like
Likes denfaro
BvU said:
I think you are done: you have calculated the torque, which is what the exercise asked...
##\dots## except for the units. :oldsmile:
 
  • Like
Likes BvU
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}...
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...
Back
Top