a boy is enjoying a ride on giant wheel which is moving with a constant speed of 10 metre per second it implies a he is

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?