Recent content by Princu

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    Really struggling in electronics -- What to do?

    Okay.Let me introduce myself.I am a first year undergrad CS student who has to study basic electronic course for one semester.As the title says,I am really falling behind in the course.Believe me,My lecturer doesn't teaches anything properly.She just write the horrifying formulae on the board...
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    Understanding Capacitor Behavior in Clamper Circuits

    I have having some serious doubts in clamper circuits. For example,let me take the example of a +ve clamper circuit. http://www.daenotes.com/images/positive-clamper.gif The diode I am considering is an ideal one.In the notes,it is written that during the negative half cycle of the A.C...
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    Ripple factor in half wave rectification diode

    Please Help. I am not getting the concept of ripple factor in half wave rectification with the help of diode.The derivation done by our lecturer is not clear.Someone please explain the concept and its derivation. Also it seems from the derivation given by our lecturer that there are two types...
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    What is the Force Constant k of a Spring?

    Have you read anything about the concept of potential energy of a spring?This question is directly based on that.. The kinetic energy of the train is being converted in the potential energy of spring?
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    Friends"Struggling with Isomerism in Organic Chemistry? Find Help and Tips Here!

    Thank you writing out such a thoughtful post.By watching the youtube videos,I have understood conformational isomerism by myself.But the main problem is configurational isomerism.Especially the questions which ask which molecule has which axis of rotation(C-1 or C-2 or C-3..)?.How many planes...
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    Friends"Struggling with Isomerism in Organic Chemistry? Find Help and Tips Here!

    Currently,I am studying the topic Isomerism in Organic chemistry and Guess what?.I suck at it. My Imagination power is kinda weak so I am having a really hard time in understanding Steriochemistry.Believe me I really try my best but still unable to fully understand it. My teacher doesn't use any...
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    Soccer ball rebouncing of the goal post

    Ah..you made a mistake..a=change in velocity/time taken the direction of ball changes after rebound so change in velocity=(18-(-23)) And acceleration=(40)/0.0033 and also don't worry about the magnitude of acceleration.The force acting on the soccer will be impulsive(have very large value) so...
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    Speed of freight car (momentum transfer)

    You should know that whenever mass is ejected from system,it applies a force whose magnitude is equal to=(dm/dt*v) v=Relative velocity of ejected part will respect to system.Here v=0..So no force will apply on system when the sand is draining although mass of system will continuously decrease...
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    Distance Needed to Reach Terminal Velocity

    The object will fall with terminal velocity when the gravitational force and the drag force become equal. ie. mg=k*v^2 Now we know the terminal velocity At any instant of time F(net)=mg-kv^2 m.a(net)=mg-kv^2 m.v.(dv/ds)=mg -kv^2 (accn=v. dv/ds) now integrate the above eqn using proper limits
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    Question about Newton's first law

    C is the most correct in my opinion.
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    Rolling a ball down an inclined slope. Something's wrong.

    Very well.Go ahead and God bless.I have completed my school education and currently preparing for engineering entrance exams due next year.
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    Rolling a ball down an inclined slope. Something's wrong.

    Thanks for correcting. By the way I did succeeded I pointing out the rest.Ha Ha:wink:
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    Rolling a ball down an inclined slope. Something's wrong.

    I really appreciate your experimental approach but you need to study a bit more to do it properly..When the cylinder rotate,the equation of the acceleration are quite complex.So don't bother about it..My suggestion would be to take a small point object and experimentally determine the time...
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    Rolling a ball down an inclined slope. Something's wrong.

    You can only find it out by doing experiments if you beforehand don't know it..Make you clear that the cylinder does slide here .We have only assumed that the cylinder is not rotating.. Have you read Laws of Motion?IF not,then leave it.
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