Subject Answers

A: This is what we call a journey-based question, wherein an object is travelling from one starting point to an ending point. Here, a rollercoaster carriage is...

A: Since: I = Q/tTherefore: Q = I/tThe data that we have: I = 5 A                        &n...

A: In order to understand where this negative surface charge is coming from, we have to first understand the concept of friction. When two surfaces are in conta...

A: The half life of a radioactive substance is the time taken for a specific sample to decay by half. This is equivalent to the time taken for the same substanc...

A: There are three main forces acting on a plane that has just begun to enter a turn:1.  WeightWeight is the gravitational force acting on the plane by vir...

A: Assuming there’s no friction in air is us assuming that no energy is being converted to an irreversible form of energy like heat. In that regard, for a ball...

A: The structure of the atom is modelled around what we call the “Planetary Model”, suggested by Rutherford. It was a remarkable move in the atom’s world, becau...

A: To find the frequency, we will use the formula for wave speed:Now we will plug in the values:Twe have is s-1, or the Hertz (Hz). It helps quantify the number...

A: Taking multiple readings in experiments helps physicists avoid what we call random errors. These are the kinds of errors that are generated in experimental d...

A: One common method used to measure the distance of stars from the Earth is Stellar Parallax. Here, we measure our chosen star’s apparent movement relative to...