a constant force acting on a body of mass 4kg changes its velocity from 2m/s to 4m/s in 4s. what is the force?​

Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?

Rohit is trying to tune an instrument

If a balloon is taken outside on a very cold day, what will occur?