Homework Statement
http://imgur.com/AotzH28
Two long, straight conducting wires with linear mass density λ are suspended from cords so that they are each horizontal, parallel to each other, and a distance d apart. The back ends of the wires are connected to each other by a slack,low-resistance...
Homework Statement
initial problem: A 228 −Ω resistor and a 586 −Ω resistor are connected in series across a 90.0−V line.
A voltmeter connected across the 228 −Ω resistor reads 24.0 V . Find the voltmeter resistance.
For Req, i got Req=228R/(2+228), R being the resistance of the voltmeter.
But...
I'm a bit unsure about my answers. Help! (posting figure)
link: http://imgur.com/whExO3S
Homework Statement
http://imgur.com/whExO3S
Consider the harmonic oscillator composed of a mass and two springs of spring constants k1 and k2 (shown in figure). If the mass, M moves on a friction less...
ok. so,
Fx(0)=f[o]
Fx=ma
a=f[o]/m (let this be the first acceleration, or a[1])
and for t=t[f]
Fx(tf)=f[o]+αt[f]+βt[f]^2
Fx=ma
a=(f[o]+αt[f]+βt[f]^2)/m (let this be acceleration #2, or a[2])
Δa=a[2]-a[1]
Δa=(1/m)(αt[f]+βt[f]^2)
So, I integrate Δa with respect to t?
but, the boundaries for...
a is not a constant, meaning my answer of v[f] is wrong. I could find dv/dt for t[f], but that would only give me the acceleration at that time. How could I find, then, the final velocity at t[f]?
Homework Statement
A point mass,m, is constrained to move in one-dimension and is acted on buy a force that depends on time in the following way:
F[x](t)=ƒ[o]+αt+βt^2
where ƒo,α, and β are constants . In terms of the quantities given, answer the following:
If the object starts off at rest at...