I believe the answer is A.
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Answer:
if bother parents have brown eyes but they carry the allele for blue eyes a quarter of the kids will have blue eyes and three quarters will have brown eyes. hope this help I'm sorry if it doesn't.
An object either remains at rest until acted upon
KE = 1/2mv^2
KE = 1/2(1000)(20^2)
KE = 2.0 * 10^5
or
KE = 200,000
hope this helps :)