Practice problems
1. A cannon on a pirate ship was fired at an angle of 30 °, and the cannon ball came out of
the cannon at 40 m/s. Assuming we can neglect air resistance and that g=9.8m/s“,
calculate:
angle = 30
(Make table and write the given values)

Make table and write the given values

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?

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?