Calculate the speed of a car that travels a distance of 2.4km in 2 minutes

72 kilometres per hour

Explanation:

The formula for calculating speed is distance/time.

So to work this out you would convert 2 minutes into hours. You would divide 2 by 60 to convert it into hours. This is because the standard unit for speed with kilometres is kilometres per hour. Then  you would divide 2.4 by that.

1)Divide 2 by 60:

2) Divide 2.4 by 0.0333333.

3) Round it.

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask