Answer:
500000000
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They are used to be able to go out of Earth and into space to Be able to explore and toBe able to prove and tell about Earth and space
Explanation:
When hot water is poured on the can in a bucket of cold water, the can crushes off means it gets unshaped
Explanation:
We have,
Speed of plane a is 900 km/h
Plane b is moving at a rate of 
It is required to find which plane is faster. To find which plane is faster, we need to compare their speeds.
Speed of a plane a is 900 km/h and that of plane b is 50 km/h. So, we can say that plane a is moving faster.