We can simply use:
speed = distance / time
To calculate the time, since speed and distance are known.
time = distance / speed
time = 400,000 / 750
time = 533.3 seconds
Answer:
Mass
Explanation
Mass is the amount of matter in an object
<span>It rises confidence for the reason that the more times you conduct the similar experiment over and over should either demonstrate your hypothesis right and wrong and remove any random incidences that might touch your results. Meaning it permits to have a more accurate measure or conclusion.</span>
