Constants I Periodic Table ? Part A Two protons are 2.5 fm apart. What is the ma

Question

Constants I Periodic Table ? Part A Two protons are 2.5 fm apart. What is the magnitude of the electric force on one proton due to the other proton? Express your answer to two significant figures and include the appropriate units. xx10" -35 Submit Previous Answers Request Answer X Incorrect: Try Again; 6 attempts remaining; no points deducted Use either an integer, decimal number, or scientific notation for the numeric portion of your answer. Do not use calculations or functions. ? Part B What is the magnitude of the gravitational force on one proton due to the other proton? Express your answer to two significant figures and include the appropriate units. FoValue Units Submit Request Answer

Explanation / Answer

Part A

Electrostatic force is given by:

Fe = k*Q^2/R^2

R = 2.5 fm = 2.5*10^-15 m

Q = charge on proton

Fe = 9*10^9*(1.6*10^-19)^2/(2.5*10^-15)^2 = 36.864 N

Part B

Gravitational force is given by

Fg = G*m^2/R^2

m = mass of proton

Fg = 6.67*10^-11*(1.67*10^-27)^2/(2.5*10^-15)^2

Fg = 2.97*10^-35 N

Part C

Fe/Fg = (36.864)/(2.97*10^-35) = 1 .24*10^36

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