Yo sup??
Average velocity=total distance covered/total time taken
total distance covered=4 + 8=12 miles
total time taken=6 hours
Therefore
average velocity=12/6
=2 miles/hour
Hope this helps
Answer:
Radio astronomy began in 1933 when an engineer named Karl Jansky accidentally discovered that radio waves come not just from inventions we create but also from natural stuff in space.
Answer:
t' = 458.26 μs
Explanation:
given,
distance traveled by the cosmic ray = 60 Km
time = 500 μs
time taken for the journey according to cosmic ray = ?
now,


v = 1.2 x 10⁸ m/s
according to time dilation formula


t' = 500 x 0.9165
t' = 458.26 μs