Recent content by Vish

Refrigerators run on Carnot cycle. It is like a heat pump that operates on the reversed Carnot cycle. It utilizes the evaporation of the refrigerant to absor...

The Second Law of Thermodynamics is not an easy topic. However, if you understand the concept of direction of thermodynamic processes and heat engines, you w...

How to study physics is the most often asked question by students on the net. My students often tell ...

Sure - You can check this link that talks about the derivative of velocity and acceleration in SHM. This is an answer to another question https://www.physicsforums.com/threads/acceleration-of-shm.951333/#post-6137811

In SHM when a mass moves towards equilibrium position, by definition it is restoring itself to a neutral position. Hence, at equilibrium position the force acting on it would be zero (since if it still had force acting on it, it would not be called a neutral or equilibrium position). But while...

You should approach answer to this question quite like you would do for motion in 1,2 or 3 dimension. In the picture below start from the derivation on the RHS where position x of the particle is given as a function of t (x = A cost (wt + phi) Take the first derivative of X w.r.t. and you get...

My daughter is also at UC Berkeley as a freshman in the college of engineering. This the advise I gave her for studying Physics- There is a lot of stuff available in form of books and videos to learn from. I recommend the following and you can pick what you think is good for you- Start with...

Well explained!

Velocity & Acceleration in Simple Harmonic Motion are quite easy to understand once the concept of displacement is clear. Essentially, velocity and acceleration are derivatives of displacement and velocity respectively

The Sine wave equation and the phase angle in SHM or Simple harmonic motion can be confusing. In this lesson we will try to connect the displacement x of a body with time through an equation

What is angular frequency in SHM or simple harmonic motion is a question very often asked by students. Often the confusion is around angular frequency and angular velocity.

Simple harmonic motion is a very interesting chapter and what we are going to learn is a kind of motion that repeats itself.

Amazing video! The Physics behind it

Is it confusing to find when is Work done by a force negative or positive? It indeed can be. Learn in this chapter how the dot product of force and displacement can give you the value of work done by the force and also if it is negative or positive

What is a conservative force and how do you determine the work done by it. It is an interesting relation between the work done by such a force and the potential energy and kinetic energy of a particle.