A50kg skater at rest on a frictionless rink throws a 2kg ball, giving the ball a velocity of 10m/s. which statement describes the skaters subsequent motion?

15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?

Which component of the earth’s atmosphere is decreased due to photosynthesis?

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction