uiueu Soluti University at Albany- MyU PHY 142 Assignment 4 du https://blackboar
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Question
uiueu Soluti University at Albany- MyU PHY 142 Assignment 4 du https://blackboar (a) Write the expression for the mass M (8 points) (b) Calculate M (2 points) 2. An electron of mass 9.11 x1031 kg has an initial speed of 3.00 x10 m/s. It travels in a straight m/s in a distance of 5.00 cm. Assume its acceleration is line, and its speed increases to 7.00 ×105 constant. (a) Write the expression for the magnitude of the force exerted on the electron. (8 points) (b) Determine the magnitude of the force exerted on the electron. (2 points)Explanation / Answer
A)
Using 1st equation of motion
a= (7^2-3^2)*10^10/(2*0.05)= 4*10^12 m/s^2
F= ma = m ( v^2-u^2)/(2* d)
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b)
F= ma= 9.11*10^-31* 4*10^12= 3.644*10^-18 N
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Comment in case any doubt.. good luck
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