Answer:
Stellar black holes form when the center of a very massive star collapses in upon itself.
Answer:Reflection
Explanation:
The throwing back of a sound wave without absorbing it is called reflection
In acoustic reflection of sound is termed as echo i.e. sound arrived at the listener after a particular delay depending upon the position of barrier to the observer.
The reflection of sound is used in many devices like megaphone, trumpets, etc. It is also used in auditorium such that the ceiling of the auditorium is curved for multiple reflections of sound so that sound can be reached at every corner of the auditorium.
No, he should place the He atom and energy on the right, and the H atoms and the heat and energy on the left.
Responsible because we feel less stressed when others help out with our responsibilities.
If ball remains in air for total time T = 0.85 s
this is also known as time of flight
In order to find the time of flight we can use kinematics
so for complete motion its displacement in y direction will be zero
now we know that net velocity of the ball is 8 m/s
while is y direction component we got is vy = 4.165 m/s
now by component method we can say
so it is projected at an angle of 31.4 degree above horizontal
