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...
Read MoreA: 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...
Read MoreA: 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...
Read MoreA: For that, we have gravity to thank! People and the planet Earth both have masses, and so there’s a gravitational force of attraction experienced between the...
Read MoreA: The saturation current is essentially a measure of the maximum possible current that can flow - in this case, measured as the rate of flow of photoelectrons....
Read MoreA: 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...
Read MoreA: 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...
Read MoreAs a pendulum is released from rest at t = 0 and maximum amplitude A, it leaves with initial velocity v = 0. But as it falls down due to its weight, it picks up...
Read MoreVenus is the hottest planet in our Solar System, with a staggering surface temperature of 475 deg C - even though it is the second farthest away from the Sun. T...
Read MoreThe electric motor runs on the principle of magnetic effects that currents have. In this, an external circuit provides a current through a coil, which is placed...
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