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LAB PREP #5

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LAB PREP #5 Empty LAB PREP #5

Post  frusty s Sat Mar 07, 2009 3:57 pm

did anyone get #4 and 5 and the equation for v?

frusty s
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LAB PREP #5 Empty ques 1

Post  gah Sat Mar 07, 2009 10:16 pm

anyone figure out how to do this part?

Subsitute the equation for the velocity v into the equation for the radius r and then solve for e/m in terms of the accelerating voltage V and the magnetic field B.
e/m =

gah
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LAB PREP #5 Empty Re: LAB PREP #5

Post  Kathleen Sat Mar 07, 2009 10:24 pm

Question 1:
KE = (q*V)
v = sqrt((q*V)/(.5*m))
r= (m*v)/(q*B)
e/m = ?
and I didnt get the last part of that yet

Question 2:
B = 2*pi*k*(I/a)
B = N*(2*pi*k*(I/a))
B = 2*(N*(2*pi*k*(I/a)))

Kathleen

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Join date : 2008-12-18

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LAB PREP #5 Empty Question #1

Post  frusty s Sat Mar 07, 2009 11:22 pm

for #1, e/m=(2*V)/(B^2*r^2)

frusty s
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LAB PREP #5 Empty Question #3,4,&5

Post  frusty s Sat Mar 07, 2009 11:23 pm

did anyone get #3,4,and 5?

frusty s
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LAB PREP #5 Empty Re: LAB PREP #5

Post  me Sat Mar 07, 2009 11:25 pm

#3)

a=(1/2)*((2*a_v1)+(2*a_v2)+(2*a_h1)+(2*a_h2))/4

I can't get the 2nd part of #3 (deltaa), #4 or #5... can anybody help me?

me
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LAB PREP #5 Empty Question 3

Post  =] Sat Mar 07, 2009 11:26 pm

a=((a_v1+a_v2)+(a_h1+a_h2))/4

dont know about delta a...

=]
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LAB PREP #5 Empty Re: LAB PREP #5

Post  me Sat Mar 07, 2009 11:26 pm

#3)

a=(1/2)*((2*a_v1)+(2*a_v2)+(2*a_h1)+(2*a_h2))/4

I can't get the 2nd part of #3 (deltaa), #4 or #5... can anybody help me?

me
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LAB PREP #5 Empty Question 3

Post  =] Sat Mar 07, 2009 11:27 pm

a=((a_v1+a_v2)+(a_h1+a_h2))/4

dont know about delta a...

=]
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LAB PREP #5 Empty #3,4,5

Post  sjames Sun Mar 08, 2009 9:03 am

Can someone please help with number 4 and 5? or the second part of #3 deltaA?

sjames
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LAB PREP #5 Empty Re: LAB PREP #5

Post  S Sun Mar 08, 2009 10:29 am

2*(sqrt((Deltar/r)^2))

For number 4 I thought it would be this, but its not working... Suggestions

S
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LAB PREP #5 Empty #3

Post  supr mo Sun Mar 08, 2009 10:46 am

delta a = delta d

supr mo
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LAB PREP #5 Empty Re: LAB PREP #5

Post  Maria Sun Mar 08, 2009 1:14 pm

anyone got #4 and 5

thanx

Maria
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LAB PREP #5 Empty #4&5

Post  super mo Sun Mar 08, 2009 1:39 pm

Working on these 2 for 2 1/2 MF'in hours!!! affraid I thought the labs were supposed to take less time. When/if I get it, I will post it. Studying for other exams - I DON'T THINK SO!

super mo
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LAB PREP #5 Empty #4

Post  Guestttt Sun Mar 08, 2009 5:03 pm

#4:
2*(Deltar/r)*((I*r)^2)

Guestttt
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LAB PREP #5 Empty question #5

Post  ryan240 Sun Mar 08, 2009 5:14 pm

delta(e/m)=sqrt((Deltas/s)^2+(2*Deltaa/a)^2)*(e/m)

ryan240
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LAB PREP #5 Empty Re: LAB PREP #5

Post  hey111 Sun Mar 08, 2009 5:49 pm

Hey wat was delta a for number 3? thanks

hey111
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LAB PREP #5 Empty Numba 3 DeltaA

Post  goo Sun Mar 08, 2009 7:20 pm

Hey guys what is the answer to deltaA?????

goo
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LAB PREP #5 Empty #5

Post  pleasehe Sun Mar 08, 2009 9:49 pm

For #5 I entered this:
(sqrt((Deltas/s)^2 +(Deltaa/a)^2))*(e/m)
and it is incorrect, can anyone help me

pleasehe
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LAB PREP #5 Empty Re: LAB PREP #5

Post  gr8luck Sun Mar 08, 2009 10:01 pm

second part for # 3 anyone plz

gr8luck

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LAB PREP #5 Empty Re: LAB PREP #5

Post  guest17 Sun Mar 08, 2009 10:57 pm

delta a = deltad

guest17
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LAB PREP #5 Empty Q #4 #5

Post  phen Sun Mar 08, 2009 11:39 pm

doesw any have Q #4 and #5? hanks

phen
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LAB PREP #5 Empty nevermind got it

Post  phent Sun Mar 08, 2009 11:44 pm

nevermind i got it
#5
delta(e/m)=sqrt((Deltas/s)^2+(2*Deltaa/a)^2)*(e/m)

#4
2*(Deltar/r)*((I*r)^2)

phent
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LAB PREP #5 Empty #5

Post  phygirl Mon Mar 09, 2009 12:40 am

the #5 answer posted by phent is not working....

phygirl
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LAB PREP #5 Empty #5

Post  phygirl Mon Mar 09, 2009 12:42 am

my bad... yeah it does. i entered the whole thing without realizing that the answer was just:

#5: sqrt((Deltas/s)^2+(2*Deltaa/a)^2)*(e/m)


thx

phygirl
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LAB PREP #5 Empty Re: LAB PREP #5

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