Recent content by hasnainzeenwa

Could you please elaborate I think I'm getting it.

Homework Statement In the given figure if the masses A and B move down with a velocity 'v' at any moment then what will be the velocity with which mass W rises. A purely logical answer would be appreciated and please don't use calculus based approach, as I don't know calculus. Also...

I've been doing some reading about the thermo-electric effect but I don't get why two different conductors are needed for the electrons to flow. I mean if I take a piece of copper wire and heat one end and cool the other, the electrons at the hotter end will get excited and move towards the...

I'm going to ask a very basic question and my attempt at solving it may not even be right. Electricity is basically flow of electrons in a conductor, so what I was wondering is if I start heating the wire the atoms will start losing the electrons and everything will be moving in a chaotic way...

"This assumes that the speed is constant." I didn't understand how does it assume that.

Homework Statement A bus starts moving with an acceleration of 2m/s^2. a cyclist, 96m behind the bus starts moving towards the bus simultaneously at 20m/s. in how much time will he overtake the bus. Kindly point out the mistake in my solution too. Homework Equations v = u + at s = ut + 1/2...

Homework Statement s lift whose cage in 3 m high is moving up with an acceleration of 2m/s^2. A piece of stone in dropped for the top of the cage of the lift when its velocity is 8 m/s, if g = 10 m/s^2, then the stone will reach the floor of the lift after how many seconds?Homework Equations a...