It will take "Exact 75 years", 'cause light takes 1 year for 1 light years.
Hope this helps!
Physics contributes to the technological infrastructure and provides trained personnel need to take advantage of scientific advances and discoveries.
Physics is an important element in the education of chemists, engineers and computer scientists as well as practitioners of the other physical and biomedical sciences .
A
method of procedure that has characterized natural science since the
17th century, consisting in systematic observation, measurement, and
experiment, and the formulation, testing, and modification of
hypotheses
<h2>Calculating the Speed given the Distance and Time</h2><h3>
Answer:</h3>
<h3>
Explanation:</h3>
The speed, , is calculated by where is the distance traveled and is the time. We are given the distance traveled of the bus, , and the time it has traveled, . So, the speed of the bus, , is calculated as...
The speed of the bus is or .