Physics
T₁=2πsqrt(m₁/k) T₂=2πsqrt(m₂/k) T₁/T₂=sqrt{m₁/m₂} T₂=T₁/sqrt{m₁/m₂}= 2.8 s
Physics
λ=v/f =3•10⁸/6•10¹⁶=5•10⁻⁹ m
Physics :)
Angular acceleration= torque/moment of inertia
physics
T + mg = mv²/R => T = m (v²/R -g)
physics
Tsin(α/2)=kq²/{2Lsin(α/2)}², Tcos(α/2)=mg. tan(α/2)= kq²/mg{2Lsin(α/2)}², m= kq²/g{2Lsin(α/2)}²•tan(α/2)=...
physics
m₁gh₁ =mv²/2, v=sqrt(2gh₁)=… m₁v=(m₁+m₂)u, u= m₁v/(m₁+m₂)=.. . (m₁+m₂)u²/2=(m₁+m₂)gh₂, h₂=(m₁+m₂)u²/2(m₁+m₂)=..
physics
h=gt²/2 t=sqrt(2h/g) =sqrt(2•200/9.8)=6.39 s
Physics
a) density b) acceleration c) - d) - e) refractive index f)capacity g)resistance h) pressure
physics
a=F/m=90/(40+3) = 2.1 m/s2
physics
ma=F(fr), mv²/R =μmg, v=sqrt(μRg) = sqrt(0.63•39.6•9.8)= …
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