Homework Statement
A sample of two different iron ions, Fe2+ and Fe3+, are accelerated by the same potential and then sent through the uniform magnetic field of a mass spectrometer.
a) Which ion moves faster after being accelerated?
b) Which ion follows the path with the largest radius...
Thank you so much everyone. I really don't know what I would do without this site...I think I'll purchase a membership.
What a hobby you guys have! Helping those in need while keeping your mind sharp--I don't know what could be better.
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I'm becoming more confused...
The first attempt at b (located in post 1) attempted to take an initial motion into account but I am unsure if my solution/breakdown of the problem makes sense. (?)
The second attempt at b (located in post 7) attempts to establish the force as an initial...
Alright...so it's just
μs(Fgy + Fa) = Fgx
μs(mg*cosθ+Fa) = mg*sinθ
.78*Fa = 33.539N
Fa = 42.999N
Fa = 4.3*10N
Correct? I noted that because the problem states that the block starts from rest, the applied force should be interpreted as an initial condition inherent to they system being described.
Wait, perhaps the μk is included in order to be added to the original question? But that would be along the same logic I followed for part B...it's just very strange that the question includes kinetic friction but describes the system as being at rest...perhaps if they had said constant velocity...
Apologies, but I don't understand why this is so...what happens to the force of gravity directed in the x direction? It is large enough that it overcomes the static friction needed to move the block...is the question just needlessly inserting a μk?
I understand that if the system magically...
Homework Statement
A box with a mass of 22 kg is at rest on a ramp inclined at 45 degrees to the horizontal. The coefficients of friction between the box and the ramp are μs = 0.78 and μk = 0.65
a) Determine magnitude of the largest force that can be applied upward, parallel to the ramp...
Ha...it never donned on me to put it into a quadratic and then simplify it. Thank's a lot...I look forward to playing with it and manipulating it around.
You're truly great--I really appreciate it. Thanks again ehild... ****stars
While researching, I came across the concept of "Lagrange Points." While the answer, which I labeled correct, of the quadratic conforms to one of these (i.e. the point between the Earth and the Moon) the other answer seems to correspond to the point beyond the moon. Is this correct? Simple if...
Homework Statement
The mass of the Moon is 7.35*10^22kg. At some point between the Earth and the Moon, the force of gravitational attraction cancels out. Calculate where this will occur, relative to Earth.
Me = 5.98*10^24 kg
Mm = 7.35*10^22 kg
D = 3.84*10^8 m
g = 6.67*10^-11 Nm^2/kg^2...