Physics
η=W/Q =(T₁-T₂)/T₁=1-(T₂/T₁), T₂=T₁(1 – W/Q)= 301(1- 216/2360)=280.7 K
Physics
V=V₀sinωt, ω= ω₀=1/sqrt(LC)=1/sqrt(0.015•5•10⁻⁶)= =3652 rad/s. V(t)=40sin3652t. q=CU, q(t) =CV₀sinωt, q(t) =5•10⁻⁶•40sin3652t=2•10⁻⁴sin3652t, I(t) =dq/dt =d(CV₀sinωt)/...
physics
h=(u²- v²)/2g v²=u²- 2gh, KE=m•v²/2= m(u²- 2gh)/2, KE=PE => m(u²- 2gh)/2 =mgh, (u²- 2gh)/2= gh, u²=4gh, h= u²/4g.
SCIENCE
http://en.wikipedia.org/wiki/Atmospheric_pressure
Physics
F=ILBsinα sinα=sin 90⁰=1 => F=ILB =6600•7.65•1.25 =6.31 •10⁴ N F=ma => a=F/m= 6.31 •10⁴/2940 = 21.5 m/s².
Finance
A company has identified the following investments as looking promising. Each requires an initial investment of $1.2 million. Which is the best investment? a)a perpetuity that generates a cash flow at the end of year 1 of $100,000, has a growth rate of 1.25%, and a cost of cap...
Physics 1
λ =2L=2•0.5 = 1 m v= λ•f=1•261.6 = 261.6 m/s v = sqrt(T/m₀)= =sqrt(T•L/m) v²= T•L/m T= v²m/L=261.6²•3.8•10⁻³/0.5=520.10 N
physics
α= β => α + β=2 β =120⁰ β=60⁰
Physics
v₂=v₁/2, m₂=2m₁. p₁= m₁v₁, p₂=m₂v₂=2m₁•v₁/2= m₁v₁=p₁. KE₁=m₁v₁²/2, KE₂=m₂v₂²/2=2m₁ •v₁²/4•2= m₁v₁...
Physics
m₁v =(m₁+m₂)u u= m₁v/(m₁+m₂)=2•22/(2+7)=4.9 m/s
Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>
For Further Reading
