1. The wavelength of the red light from a traffic signal is centered at 680 nm. What is the frequency of this radiation

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped