The core of a star must be at the temperature of 10,000,000 degrees Celsius for hydrogen fusion to begin.
Answer:
The act of using senses or tools to gather information is called <em>Obser</em><em>vation</em><em>.</em>
As soon as you let go of it it is at its max speed because gravity is constantly pulling it down
Given:
1st run: 20 meters North
2nd run: 15 meters East
time: 15 seconds
Average speed = total distance covered / total time taken
Ave. Speed = (20m + 15m) / 15s
Ave. Speed = 35m / 15s
Ave. Speed = 2 1/3 meters per second
Answer:


Explanation:
Here mass density of rod is varying so we have to use the concept of integration to find mass and location of center of mass.
At any distance x from point A mass density


Lets take element mass at distance x
dm =λ dx
mass moment of inertia

So total moment of inertia

By putting the values

By integrating above we can find that

Now to find location of center mass


Now by integrating the above


So mass moment of inertia
and location of center of mass 