If you wanted to learn more about ancient scientific knowledge, whose life would you research?
O A. Ibn al-Haytham's
B. Christian Doppler's
O C. Sir Isaac Newton's
D. Galileo Galilei's

What is a frequency of a wavelength

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is