The process that produces the energy radiated by stars is nuclear fusion in the core.
For a star on the main sequence, it's the fusion of hydrogen nuclei into helium.
Answer:
and 
Explanation:
The tub rotates at constant speed and the kinematic formula to describe the change in angular displacement (
), measured in radians, is:
Where:
- Steady angular speed, measured in radians per second.
- Time, measured in seconds.
If 
and 
, then:
The change in angular displacement, measured in revolutions, is given by the following expression:
Answer:
C. zero for both
Explanation:
In case of solid metal sphere , when it is given any charge , all the charges are transferred on the surface and within surface no charge exists . In case of hollow metal sphere , all charges reside on surface . In this way , in both solid and hollow sphere , all charge reside on the surface and no charge resides inside it . Hence due to absence of any charge inside , there is no electric field inside the sphere in both the cases .
Hence in both the case electric field is zero .
option C is correct .
Degrees Celcius = Degrees Kelvin - 273
<span>Therefor 273 K is equal to 0 degrees Celcius </span>
<span>(the temperature at which water freezes)</span>
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