Aparticle is moving along a straight line through a fluid medium such that its speed is measured as v=(2t) m/s, where t is in seconds. if it is released from rest at s=0, determine its positions and acceleration when t=3 s.

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

How will the system respond to a temperature increase?