Question

Recycle Bin A Police Car T 1 hr in seconds Goo +v In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.21 x 10% m/s. (a) Find the force acting on the electron as it revolves in a circular orbit of radus 0.530 x10 10m magnitude (b) Find the centripetal acceleration of the electron m/s2 Need Help? Hoaes never two Apollo astronauts were on the surface of the Hoon, a third astronaut orbited the Moon. Asume the orbit to be ocular and 190 ㎞ above the-tee of the More where the acceleration due to gravity is 1.37 m/s2. The radus of the Moon is 1.20 *10 Determine the astronaut's orbital speed Determine the period of the orit Talgare Noed Help? Peme TA (a) A stuntman wiath a mass of B4.5 kg swings aarons a moat from a rope thut is 11ettom of the swing the stuntman's soeed is 8.90 mys. The roper's breaking strength is 1,000 n. wwa the stuntman make across th-moat without taling in, O No What 1tr what is the maximum speed (in mu/s) that the stuntman can have at the bottom of the swing on this vine to safely swing across the river? tdge

Answer 1

1)

A)

Force, F = mv^2/r = 9.11 x 10^-31 x (2.21 x 10^6)/(0.53 x 10^-10) = 8.40 x 10^-8 N

B)

Centripetal acceleration, Ac = v^2/r = 9.22 x 10^22 m/s^2

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Answer 2

1)

A)

Force, F = mv^2/r = 9.11 x 10^-31 x (2.21 x 10^6)/(0.53 x 10^-10) = 8.40 x 10^-8 N

B)

Centripetal acceleration, Ac = v^2/r = 9.22 x 10^22 m/s^2

Comment in case any doubt please rate my answer ...

According to the HomeworkLib guidelines I can answer one question at a time so please post other questions seperately...