Answer: static stretching
Explanation:
e.g rubberband
Answer:
K = ρL²g
Explanation:
Consider L as the length of the raft inside the water when the raft is displaced through additional distance y;
Then:
F = upthrust ( restoring force) = weight of the liquid displaced.

where;
A = L²

F = ky.
Then,


Divide both sides by y
K = ρL²g
Answer:
every number to 3 sf = 1) 45.0 2) 250 3) 1.30
Explanation:
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