Combine equations (9.1) and (9.2) in order to solve for e/m in terms of V (the voltage that accelerates the electrons), B (the magnetic field produced by the Helmholtz coils) and r (the radius of the circular electron beam). Hint: the first iteration of this calculation usually ends up with functions of e/m on both sides. To achieve the final result, e/m = some function of V, B and r, you'll need to do some algebra.

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?