Consider two waves undergoing interference of displacement and . Where = a sin , = a sin (wt + ) using the mathematical approach derive the progressive wave equation for the two waves

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank

What is the difference between mass density and weight density?