1. A car moving to the right at 30 m/s, slows down 5 m/s every second until it comes to a stop. a). At what time will the car come to a stop?
b). How far did the car travel by the time it came to a stop?

Describe uniform velocity and variable velocity in short

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?