Physics
cosα=1, ℇ=ΔΦ/Δt = N•Δ(B•Acosα)/Δt= =N•A•ΔB/Δt, ℇ=I•R, N•A•ΔB/Δt= I•R, I= N•A•ΔB/Δt•R= =347•0.28•2.4/0.31•49 = 15.35 A
physics
cosα=1 ℇ=ΔΦ/Δt = N•Δ(B•Acosα)/ Δt= =N•A•ΔB/Δt ℇ=I•R N•A•ΔB/Δt= I•R I= N•A•ΔB/Δt•R= ...
PHYSICS!!!!...PLEASE HELP
v=const => mgsinα=F(fr) = μN= μmgcosα sinα= μcosα μ=tanα
physics
mgh=kx²/2 x=sqrt(2mgh/k)
Science
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge.
Physics
The object located between F and 2F => the image will be located beyond the 2F point on the other side of the lens. It is real, inverted and its dimension is larger than the object demension. d₀ - object distance d₁ - image distance f- focal lenth 1/d₀ +1/...
Physics *Electrical Scientist* please help me!!!
http://www.tutorvista.com/science/jj-thomson-atomic-theory-0 http://en.wikipedia.org/wiki/Cathode_ray_tube
calculus
t=∛x =x^(1/3) => y=3x^5 = 3x^(5/3). dy/dx =3•(5/3)•x^(2/3) = =5 •125^(2/3)=525=125
Physics
d₀ - object distance d₁ - image distance f- focal lenth 1/d₀ +1/d₁ =1/f, 1/d₁ =1/f - 1/d₀ = = (d₀-f)/ d₀•f, d₁=d₀•f/(d₀-f)= =0.4•0.15/(0.4-0.15)=0.24 m, 0.03/0.4 =h/ d₁ , h= d₁•0....
Physics
mgsinα=F(fr) = μN= μmgcosα sinα= μcosα μ=tanα
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