Imprtant phyishcs 1-2 Equations and

Thread starter NineTHOUSAND
Start date Feb 19, 2009

AI Thread Summary

For a Physics 1-2 test, it's crucial to include fundamental equations such as Newton's laws, kinematic equations, and conservation laws on your notecard. Participants suggest reviewing the specific chapters covered in your course to identify relevant equations. It's also recommended to consult your textbook for a comprehensive list of equations that align with your current curriculum. Understanding the application of these equations in problem-solving is essential for success. Preparing a focused notecard based on your course material will enhance your test performance.

Feb 19, 2009

NineTHOUSAND

Hey, I am having a physichs 1-2 test tomrrow, and i need general equations and stuff i shoild put on my notecard, what do you guys think will help alot?

Physics news on Phys.org

Feb 20, 2009

Lunchbox_92

Surely they're covered in your course?

Feb 20, 2009

daniel350

Perhaps it might help if you described what chapter you've done, and surely as said above, you should just know to check your book for the equations that are relevant to your (current course progress)/test.

Thread 'I've come across another fluid pressure problem I don't understand'

Neglect gravity other than that of water; neglect friction. F1=ρgsh=1000*10*1*(1+4)=50000 N; F1=ρgsh=1000*10*0.1*4=4000 N; F3=50000-4000=46000 N?

View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

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...

View full post »

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}...

View full post »