A 13,500 kg railroad freight car travels on a level track at a speed of 4.5 m/s. It collides and couples with a 25,000 kg second
1 answer:
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Answer:
Wavelength,
Frequency,
Explanation:
We need to find the intensity of the radiation is a maximum for a black body at 298 K. It can be calculated using Wein's displacement law. It is given by :
Here, T = 298 K
If f is the frequency of black body radiation. It is given by :
Hence, this is the required solution.
Answer:
Explanation:
The angular speed is given by:
Here v is the linear speed and r is the radius of the circular motion. The height of the tower is equal to the radius of the circular motion of the top of the tower, since is rotating about its base. We need to convert the given linear speed to :
Now, we calculate the angular speed: