brotherbobby's latest activity
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brotherbobby replied to the thread Undergrad Curl of velocity vector in rotational motion.Yes I agree with the second sentence of yours. It is the first that is more interesting. Let me write it again, despite being... -
brotherbobby replied to the thread Undergrad Curl of velocity vector in rotational motion.Thank you, and a bit silly on my part. My derivation up there in post#1 remains the same even if the the angular velocity vector... -
brotherbobby replied to the thread Undergrad Curl of velocity vector in rotational motion.Space. So if the angular velocity of the body varies with time, say ##\vec\omega(t)##, I have the following two questions. The first... -
brotherbobby replied to the thread High School Using "symmetry" to deduce final velocities of two colliding particles.I don't understand what symmetry really means. I am going by what I suspect. -
brotherbobby posted the thread High School Using "symmetry" to deduce final velocities of two colliding particles in Mechanics.Text excerpt : For context, I copy and paste the paragraph on "symmetry" from the text, underlining the relevant lines in red. I hope... -
brotherbobby replied to the thread High School An apparent contradiction between Fleming's rules.As I have found out only recently, and I confess I should have done so a lot earlier, it is best not to think of electricity as the flow... -
brotherbobby replied to the thread High School An apparent contradiction between Fleming's rules.Thank you and apologies. A silly error on my part. Something else if I may. There's an agreement to take the conventional flow of... -
brotherbobby replied to the thread High School An apparent contradiction between Fleming's rules.I don't see how. The RHR (Right Hand Rule) mind you. The magnetic field is from left to right. Charge is moving down. Hence force... -
brotherbobby replied to the thread High School An apparent contradiction between Fleming's rules.Positive. -
brotherbobby posted the thread High School An apparent contradiction between Fleming's rules in Classical Physics.Situation : I have drawn the image to the right. A current ##I## flows "down" along a wire in a magnetic field ##\vec B## directed to... -
brotherbobby replied to the thread A rocket and the Coriolis acceleration.I have solved the problem I mentioned in post #1 at the top, which was about the direction of coriolis deflection of a rocket fired "up"... -
brotherbobby replied to the thread A rocket and the Coriolis acceleration.Brilliantly explained. Thank you and sorry for the delay in responding. -
brotherbobby replied to the thread A rocket and the Coriolis acceleration.I should reply to you later when time and the advantage of having done some mathematics first permits. For the case is involved. The... -
brotherbobby replied to the thread A rocket and the Coriolis acceleration.Due to the coriolis force, the particle acquires a velocity due east (along X) on its way up. For a place in the northern hemisphere...




