Answer:mile
Explanation: heres a hint think aboyt the distance between your house to school
Refraction is the change in direction of a wave.
Diffraction is the bending of a wave around a barrier.
Answer:
C
Explanation:
It has to travel 600 light years before we would be able to observe the explosion.
The answer to that will be the Troposphere.
Tension in the rope due to applied force will be given as

angle of applied force with horizontal is 37 degree
displacement along the floor = 6.1 m
so here we can use the formula of work done

now we can plug in all values above


So here work done to pull is given by 691.8 J