.A particle starts on the origin. It is pushed back to -5.7 m in 2.1 s. Then it is pushed
2 answers:
Answer:
The average velocity of the particle is 1.76 m/s.
Explanation:
Given that,
Distance = -5.7 m
Time t = 2.1 s
Forward distance = 7.3 m
Total time = 9.5 sec
We need to calculate the average velocity of the particle
Average velocity :
Average velocity is equal to the displacement divided by change in time.
Where, D = displacement
t = change in time
Hence, The average velocity of the particle is 1.76 m/s.
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The frequency of red light is approximately 450 THz, while the frequency of blue light is about 650 Hz. Higher frequency means higher energy, so blue light is more energetic than red light and therefore it can cause more damages than red light.