It is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g / metric ton. a metric ton is 1000 kg. at this concentration, what mass of uranium is present in 1.2 mg of the earth's crust?

The mass of Uranium present in a 1.2mg sample is

Explanation:

The ration between Uranium mass and total sample mass is:

For a sample of mass 1.2 mg, the amount of uranium is:

when earth is in rotational motion around the sun,it displaces from its place.

when a ball is placed on an inclined surface it does both the rotational and circular motion.

explanation:

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest