Use the work–energy theorem to solve each of these problems. Then use Newton’s laws to check your answers. Neglect air resistanc
1 answer:
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- K.E=18750J
- Mass=m=2100kg
- Velocity=v
Answer:
The velocity of the star is 0.532 c.
Explanation:
Given that,
Wavelength of observer = 525 nm
Wave length of source = 950 nm
We need to calculate the velocity
If the direction is from observer to star.
From Doppler effect
Put the value into the formula
Negative sign shows the star is moving toward the observer.
Hence, The velocity of the star is 0.532 c.