An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?Physics A. I = 2I∫Sin(πt/2) B. I = 2I∫Sin(2πt) C. I = 2ISinπt D. I = I∫sin(2πt)
Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is