If We Assume That an Electron Is Orbiting a Proton

question 42

Multiple Choice

If we assume that an electron is orbiting a proton just like the moon orbits Earth,find the electron's orbital speed due to the gravitational attraction between itself and the proton.Take the orbital radius as 1.00 × 10^-10 m.(This is a very wrong assumption to make. )

• A)3.33 × 10^-14 m/s
• B)1.11 × 10^-13 m/s
• C)1.11 × 10^-27 m/s
• D)1.06 × 10^-27 m/s