Complete question :
1. A crazy dog runs 300 meters east, changes his mind and then runs 200 meters west. He then changes his mind again and runs 500 meters east. This entire trip takes 2 minutes.
a) What is the total distance traveled?
b) What is the total displacement?
c) What was the dog’s average speed?
d) What was the dog’s average velocity?
Answer:
1000 m ; 600 m east ; 8.333 m/s ` 5 m/s
Explanation:
Total distance :
(300 + 200 + 500) m = 1000 m
Total Displacement :
300 m east - 200 m west + 500 m east
100 m east + 500 m east
= 600 m east
Average speed :
Distance / time
100 m / 2 * 60 s
100 m / 120 s
= 8.333 m/s
Average velocity :
Displacement / time
600 m / 2 * 60 s
600 m / 120 s
= 5 m/s
Answer:
It helps you make decisions
Explanation:
it does
That statement is false. Bacteria are single-celled organisms.
Answer:
Nitrogen fixation
Explanation:
The nitrogen fixation is when the nitrogen from the air and from the ground are used to syntesize nitrate (NO2-) which is assimilated by the roots of plant and then transported to all of the plant.
The nitrogen is worth for plants because helps its growing and to synthesize chlorophyll.
Its the color of crystals formed depends on the speed of evaporation