H.W: In the Boher model of the hydrogen atom an electron moves at 2.19*10m/sin an orbit of radius 5.29*10" centered on a proton. (a)what is the centripetalforce on the electron? (b)what is the number of revolutions made each second?Ans. (a)9.06*10"m/s (b = 6. 58 + 1015 1/sH.W: A ball is thrown with an initial speed voat an angle 0 below the horizontalfrom rooftop 44m above the ground. It lands 2sec later at a point 32m from theVorbase of the building. Find vo and 0Ans. 0 = -37.32vo = 20. 1m/sH.W: A ball thrown up from a rooftop of height 40m lands on ground in 4s.(a)what is its maximum height above the ground? (b)what is its velocity 15m belowthe rooftop?Ans. (a)44.7m (b) v = -19.65 4H.W: An object is thrown horizontally at 20m/s from a cliff top 45m above sealevel. Find (a)the time to land; (b)the angle at which it hits the water; (c)the speedat which it hits the water.Ans. (a)3.03s (b)Ø = -54.73 (c)35.79m/s

Answered: Image /qna-images/answer/ec08fa28-08aa-4ab3-afc6-abe0e4e7fb2f.jpg

H.W: In the Boher model of the hydrogen atom an electron moves at 2.19*10°m/s in an orbit of radius 5.29 10" centered on a proton. (a)what is the centripetal force on the electron? (b)what is the number of revolutions made each second?

H.W: In the Boher model of the hydrogen atom an electron moves at 2.19*10°m/s in an orbit of radius 5.29 10" centered on a proton. (a)what is the centripetal force on the electron? (b)what is the number of revolutions made each second?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 2PQ: If you live in the United States, you probably know your height in feet and inches. In other...

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