A star may form a black hole
once is true. After the marked supernova explosion, the star shrinks because it
sheds away the gaseous layers of the star. And especially if the star is large,
it will form into a black hole.
Answer:14 s
Explanation:
Given
Velocity of ant is 0.1 m/s in a direction 
if it has traveled 1 m perpendicular to the edge of the sidewalk
i.e. from diagram





When light rays<span> enter a </span>new medium<span> at an angle, the change in speed </span>causes<span> them to </span>bend<span> and change direction. ... They change the speed </span>causes<span> the </span>ray to bend<span> or change direction. When </span>light<span> slows down even more when it passes from water into glass.</span>
Answer:
Solid sphere will reach first
Explanation:
When an object is released from the top of inclined plane
Then in that case we can use energy conservation to find the final speed at the bottom of the inclined plane
initial gravitational potential energy = final total kinetic energy

now we have

here k = radius of gyration of object
also for pure rolling we have

so now we will have



so we will say that more the value of radius of gyration then less velocity of the object at the bottom
So it has less acceleration while moving on inclined plane for object which has more value of k
So it will take more time for the object to reach the bottom which will have more radius of gyration
Now we know that for hoop

k = R
For spherical shell


For solid sphere


So maximum value of radius of gyration is for hoop and minimum value is for solid sphere
so solid sphere will reach the bottom at first