Determine the power required to accelerate a 900-kg car from rest to a velocity of 80 km/h in 20 s on a level road.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27°c (81°f), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?

How does an increase in temperature generally affect the rate of a reaction?