As 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 MorePumped-storage hydropower (or PSH) uses water as a mode of energy storage, and the type of energy stored is gravitational potential energy. The way it is done i...
Read MoreA smoke alarm’s function relies on a small amount of radioactive material placed between two electrically charged metal plates. As it releases radiation, it wil...
Read MoreIn this scenario, we’re essentially witnessing a change in the internal energy of the water. More specifically it is an increase in kinetic energy we’re talking...
Read MoreThe half-life of a radioactive substance is essentially a measure of the time it takes for a sample to decay to half its original value, whether that be in term...
Read MoreThe density is defined as the measure of mass per unit volume:ρ = mVWhere: ρ =density, m=mass, V=volumeThe mass of the rock is given as 75 g, but we n...
Read MoreSome electromagnetic waves like ultraviolet, X rays and gamma rays have high frequencies and therefore have high energies. These waves, upon entering the human...
Read MoreTo solve this question, we have to first consider the formula of density, defined as the mass per unit volume of a substance:ρ = m/V m=ρV...
Read MoreThe red shift is a consequence of the Doppler’s Effect, a phenomenon wherein waveforms that move away from an observer observe an increased wavelength - and hen...
Read MoreThe atom is considered to be the smallest building block of all matter. Whether it's a tiny ant, or a massive planet, everything is composed of these atoms, in...
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