How much space does 2 x 1022 atoms of copper take up? How much space do 2 x 1022 copper pennies take up, using examples from the animation?

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?