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nlb149

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**1. An electron of mass 9.11 x 10^-31 kg has an initial speed of 4.00 x 10^5 m/s. It travels in a straight line, and its speed increases to 6.00 x 10^5 m/s in a distance of 3.00 cm.**

(a) Assuming its acceleration is constant, determine the force exerted on the electron.

N (in the direction of motion)

(b) What is the ratio of this force to the weight of the electron, which we neglected?

(a) Assuming its acceleration is constant, determine the force exerted on the electron.

N (in the direction of motion)

(b) What is the ratio of this force to the weight of the electron, which we neglected?

**2. F=ma**