Shawn and his bike have a total mass of 47.6 kg. shawn rides his bike 2.1 km in 14.2 min at a constant velocity. the acceleration of gravity is 9.8 m/s 2 . what is shawn's kinetic energy? answer in units of j.

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?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

What do you think car designers do if the damage caused by a crash test is too severe?