Answer:
The people with caculators will probably answer faster due to thier ablitiy to use a device of technology
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➷ After 10,000 years the mass will be:
1,000 / 2 = 500
After 20,000 years the mass will be:
500/2 = 250
As you can see, the correct answer would be A. 20,000 years
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Answer:
33 kg m/s
Explanation:
The momentum of an object is given by:

where
m is the mass of the object
v is the velocity of the object
In this problem, the total mass of the child and the wagon is m =22 kg, while the velocity is v = 1.5 m/s, therefore the momentum is

Umm, not normal or healthy but common
could be depression