- #1
taylor.simon
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1. Homework Statement
what is the mass of a particle which travels in a circular path with a kinetic energy of 3.2 x 10 ^-19 J moving perpendicular to a 0.200t magnetic field if it has a charge of 1.6 x10 ^-19 C and the path radius is 10 cm
2. Homework Equations
ke= 1/2 mv^2
mv^2/r = qvB
r = mv^2/qvB = mv/qB
mv = qBr
3. The Attempt at a Solution
mv =qbr
mv = 1.6 x10 ^-19 C x 0.200 T x 0.1 M
mv = 3.2x 10 ^-21
i can't figure out how to separate the mass and velocity using ke=1/2mv^2
any help is much appreciated
what is the mass of a particle which travels in a circular path with a kinetic energy of 3.2 x 10 ^-19 J moving perpendicular to a 0.200t magnetic field if it has a charge of 1.6 x10 ^-19 C and the path radius is 10 cm
2. Homework Equations
ke= 1/2 mv^2
mv^2/r = qvB
r = mv^2/qvB = mv/qB
mv = qBr
3. The Attempt at a Solution
mv =qbr
mv = 1.6 x10 ^-19 C x 0.200 T x 0.1 M
mv = 3.2x 10 ^-21
i can't figure out how to separate the mass and velocity using ke=1/2mv^2
any help is much appreciated