Physics
T•sin60•L=2450•sin30•0.39L +5000•sin30•L T•sin60=(2450•0.39 +5000)•sin30 T=(2450•0.39 +5000)•sin30/sin60=...
physics
mv=(m+M)u u =mv/(m+M), (m+M)u²/2=(m+M)gh. u=sqrt(2gh). mv/(m+M)= sqrt(2gh) v= (m+M)•sqrt(2gh)/m
chem (boyles and charles law)
T₂=V₂T₁/V₁
chem. mix of boyles and charles law
V₂=T₂V₁/T₁ 1 atm = 101325 Pa 1 L = 10⁻³ m³
chemistry (charles law)
V₂=T₂V₁/T₁ T₁=303 K T₂=273 K
chemistry (charles law)
V₂=T₂V₁/T₁
physics
Given data: 1st rod: L₁, T₁, x₁, a => A₁=a²; 2nd rod: L₂, T₂, x₂, d => A₂= πd²/4; Hook’s Law for rods: σ=Eε T/A = E•x/L, 1st rod: T₁/a²= E•x₁/L₁, 2nd rod: 4T...
Science
m=D•V
Physics
m=39.0 kg s=4.5 m, F=135 N, μ=0.3 (a) W(F) = Fs (b) ΔU= W(fr) = μmgs (c) W(N) = 0 (d) W(mg) = 0 (e) KE=W(F) –W(fr) =Fs - μmgs (f) KE=mv²/2 v= sqrt(2•KE/m)
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