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Member warned that an effort must be shown

## Homework Statement

A certain commercial mass spectrometer is used to separate uranium ions of mass 3.92 multiplied by 10-25 kg and charge 3.20 multiplied by 10-19 C from related species. The ions are accelerated through a potential difference of 100 kV and then pass into a uniform magnetic field, where they are bent in a path of radius 1 m. After traveling through 180° and passing through a slit of width 1.00 mm and height 1.00 cm, they are collected in a cup.

(a) What is the magnitude of the (perpendicular) magnetic field in the separator?

(b) If the machine is used to separate out 100 mg of material per hour, calculate the current of the desired ions in the machine.

(c) In that case, calculate the thermal energy produced in the cup in 1.00 h.

## Homework Equations

I=nqvA

Where I is the current

q is charge

v is the drift velocity

A is the cross-sectional area

and using energy equation we get that

v=(2Vq/m)^0.5

v is velocity

V is the potential difference

## The Attempt at a Solution

I solved a and c but I couldn't solve b