28. A ball is projected outward with an initial horizontal velocity of 10 m/s. It takes 0.5 seconds for the ball to reach its maximum height. What is the maximum horizontal distance (range) of the ball? A 2m
B 5m
C 10m
D 20m

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

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?