sakotaco3455
17.11.2020 •
Physics
A 20.0 kg horizontal plank 4.00 m long rests on two supports, one at the left end and a second 1.00 m from the right end. What is the magnitude of the force exerted on the plank by the support near the right end
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Ответ:
Explanation:
area = a
density × vd × q × area = I
and J = I /A
(current density)