Start School Year Well: Preparing for Calc & Physics

  • Thread starter Thread starter Tom McCurdy
  • Start date Start date
  • Tags Tags
    School
AI Thread Summary
The discussion centers around the anticipation of starting calculus and physics courses as the school year approaches. The participant expresses excitement about the upcoming classes while acknowledging a fortunate start date compared to others. There is a humorous exchange about sharing homework solutions, highlighting the challenges faced in the past when helping peers. The participant reflects on the negative impact of assisting others on their own grades, emphasizing the effort required for tutoring. Overall, the conversation captures a mix of enthusiasm and caution regarding academic responsibilities.
Tom McCurdy
Messages
1,017
Reaction score
1
Well School is about to start for me... I still have one week before the homework begins, but on the up side I now have internet again. Anyway I realize I am a little luckier than most on the start of school date so I won't complain. Plus I am kinda of looking forward to my calc and physics courses so

oh well
 
Physics news on Phys.org
We will, of course, expect you to post all your homework solutions here so that we can copy them!
 
hahaha Nah I got in nothing but trouble freshman year by helping other students I had an online help page for classes and in return got worse grades than them on certain things because I had to to the homework they just had to polish it. It wasn't really answers even it was just tips on where to find them and help but too much work for way too much time
 
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...

Similar threads

Back
Top