A spring of spring constant 30.0N/m is attached to different masses and the system is sent in motion find the period and frequency of vibration for masses of the following

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.