Lets get out brains working! 1+1=?

TMG Leader · Post by **TMG Leader** » Wed Oct 03, 2007 6:54 pm

^true, and only use these operations: add, subtract, and divide, read the instructions ppl!!

MonicaTTmed · Post by **MonicaTTmed** » Wed Oct 03, 2007 9:45 pm

All right. Given (this is taken from an 1897 cathode ray experiment by J.J. Thomson):

deflection of cathode ray by electrical field = (charge of ray particle) * (electric field) * (length of deflection region) * (length of drift region) / ( (mass of ray particle) * (velocity of ray particle)^2 )

deflection of cathode ray by magnetic field = (charge of ray particle) * (magnetic field) * (length of deflection region) * (length of drift region) / ( (mass of ray particle) * (velocity of ray particle) )

...

(deflection of cathode ray by magnetic field) / (deflection of cathode ray by electrical field) = ??? (fully simplified)

Speedo · Post by **Speedo** » Thu Oct 04, 2007 1:29 am

^

we how do you measure some of those units? magnetic field? is the answer negative? :P

anyway, i'm stumped.

oh well. here's another one. this one i think is actually "solvable." small #'s indicate powers:

(5.6*10-26)(3.1*1089)
(1.6*10-17)(6.1*10345)

express answer with exponents (hint: answer isn't 1)(hint 2: break it up)

MonicaTTmed · Post by **MonicaTTmed** » Thu Oct 04, 2007 5:00 pm

we how do you measure some of those units? magnetic field? is the answer negative? :P

It's algebraic. Your answer will be in variables. Most of it cancels out anyway so you're in luck.

The electric field is measured in Newtons/Coulomb (newtons = kg*m/s^2, coulombs = amp*s), and the magnetic field in Newtons/(amp*m) but I'm not looking for units anyway.

Post by **parCAT** » Thu Oct 04, 2007 6:07 pm

spe.edo wrote: oh well. here's another one. this one i think is actually "solvable." small #'s indicate powers:

(5.6*10-26)(3.1*1089)
(1.6*10-17)(6.1*10345)
express answer with exponents (hint: answer isn't 1)(hint 2: break it up)

to answer that......

does it = 1.69434*10^393? (number after the carrot implies that it's exponents; 393)

576, 89

TMG Leader · Post by **TMG Leader** » Thu Oct 04, 2007 6:18 pm

i cant help in this problem to advanced

MusickTMG · Post by **MusickTMG** » Thu Oct 04, 2007 6:28 pm

576+89= 665

-136, 243 to the 3rd power

KidOfTheFuture · Post by **KidOfTheFuture** » Thu Oct 04, 2007 7:35 pm

oh geez let's start over

153,28

TMG Leader · Post by **TMG Leader** » Thu Oct 04, 2007 7:47 pm

KidOfTheFuture wrote:oh geez let's start over

153,28

yeah that got out of control well here we go again, this time read the instructions, new rule NO CALCULATORS

153+28=181

-30, -28

KidOfTheFuture · Post by **KidOfTheFuture** » Thu Oct 04, 2007 7:48 pm

impossible