Recent content by niravana21

fair enough :) I don't even know if some of my reasonings are valid haha 8. The total power that is dissipated should be conserved so True 9. (not sure at all, just guessed) 10. Voltage stays the same though out the circuit so False 11. True because closing the switch causes current to flow...

so if I'm understanding correctly, which I'm not too sure, would it go like this? 8.True 9.False 10.False 11. True 12. True again, it would be helpful if you can tell me why I'm incorrect rather than provide the right answer. Thanks members!

Circuits / Switches / Currents --TRUE FALSE QUESTIONS (Pic included) Homework Statement Homework Equations The Attempt at a Solution I really have no idea, on going about solving this as I don't have my book with me and the homework is due in a few hours. I'm sure if brief...

it should be attached now

Cell Biology -- Devising Experiments Homework Statement I've included a picture of the problem to avoid confusion 2. The attempt at a solution I need to devise an experiment that would confirm the 3 statements. By experiements, it means something along the line of DNAase II sensitivity...

thank you very much! My other reasonings seem right, right? Also is this considered accelerating? "a child riding a carousel around in a circle"?

So in 4) the normal force would be read as the same since the acc is the same correct? But what about 2)?

Homework Statement The figures depict situations where a person is standing on a scale in eight identical elevators. Each person weighs 600 N when the elevators are stationary. Each elevator now moves (accelerates) according to the specified arrow that is drawn next to it. In all cases where...

I forgot to multiply by "g" in one of them ahh. Haha thanks for the help

was your final answer 7.85?

what are you using to sub in the normal force for that equation? I'm using N=mgcos, but that doesn't work?

Ok I can break down the sum of the forces on m1 as following: Forces on m1 on the y = N - mgcos Forces on m1 on the x = T - ukN-mgsin do these components = zero or MA? if its MA, then I need the acceleration, which I am having trouble. I tried solving, them setting them equal to zero...

Static Friction Problem -- Physics I Homework Statement I've attached the problem, in order to avoid any confusion.2. The attempt at a solution I tried to use F=ma for both of the masses, however, I need the acceleration along the x which I'm having diffuclity finding. Either that, or I...

wow that does simply it! Now I find the derivative. But then would if I set the derivative equal to zero and find a critical point? Also I'm having some difficulty of still finding the derivative :( After simplification I get: (-6πr^4+1-π^2 r^4)/(3√(1-π^2 r^4 )) which I think is wrong...

sorry that's what I meant. But the expression for H in terms of R becomes complicated with the square root and quotient. here's what I get for h in terms of r: h=sqrt[(1/pi^2r^2) - (r^2)] now I get stuck at trying to find the derivative of that.