The speed of light in a vacuum is 2.998×108 m/s. calculate its speed in miles per hour (miles/h). express the speed in miles per hour to four significant digits.

Explanation:

We have given speed

We know that 1 km = 1000 m

So

And 1 miles = 1.609 km

So

Now we know that 1 hour =60×60=3600 sec

So 1 sec

Now speed

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

an energy transformation flow diagram is shown

where is it ?