brotherbobby's latest activity
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brotherbobby replied to the thread Two balls, dropped with a delay of ##\Delta t##, meet after rebound.I have drawn a figure of what I meant to the right. A ball is projected vertically from a point A on the ground with a velocity... -
brotherbobby replied to the thread Great circle between two points on the Earth's surface.Sorry for coming in late. I would use the method you proposed @kuruman presently, but please tell me if there's something wrong with my... -
brotherbobby replied to the thread Two balls, dropped with a delay of ##\Delta t##, meet after rebound.I had asked at @A.T. : ``Is it also true that for a ball thrown vertically up and which rises to a maximum height ##h##, the time to... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.I copy and paste the problem to the right of the screen. Please look at part (c) where, we believe, the error has taken place in what we... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.Yes that's a possibility. -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.When you type your problem statement and relavant equations, you have to include actual equations in LaTeX. Your problem statement may... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.Yes. Upon edit, only if it's the opening post (#1) of the thread, the ##\rm{\LaTeX}## codes disappear. What I do is to open an older... -
brotherbobby posted the thread Great circle between two points on the Earth's surface in Introductory Physics Homework Help.Problem statement : I copy and paste the problem as it appeared in the text. [Kleppner, D., Kolenkow, R. (2014). An Introduction to... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.None of the codes in the Relevant Equations show. It is my mistake too that when I decided to edit my original message that starts the... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.The ##\rm{\LaTeX}## renders but is cleaned upon an edit. You have to type all LaTeX codes again. -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.Thank you @Ibix. I should add, to help the admin, @Greg Bernhardt, that the formatting in ##\rm{\LaTeX}## does not disappear in the main... -
brotherbobby replied to the thread Investigating the real roots of a cubic equation.Hi @pasmith, yes it seems I was mistaken too in my plotting on ##\verb|desmos.com|##. I took the constant ##k## with a positive ##(+)##... -
brotherbobby posted the thread Investigating the real roots of a cubic equation in Calculus and Beyond Homework Help.Statement of the problem : Let me copy and paste the problem as it appears in the text. [Riley, K.F., Hobson,M.P., Bence,S.J. (2006)... -
brotherbobby replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Yes sorry about that. I agree. I am sorry I don't see how that is - the earth's motion, whether towards or away, affecting when the... -
brotherbobby replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Let's have the image again. It might be obvious from the picture, but let me state it all the same. In 1 and 2, the object it moving...








