3. Three people are carrying a piano upstairs. one pushes with 600 N of force, another with 500 N and the third with 400 N. If gravity opposes them at 1200 N, what is the net force.
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Ответ:
A second experiment can be carried out to investigate how the strength of the electromagnet ... Check that the current is still 0.5 A and repeat the paper clip reading. ... Repeat this process increasing the number of turns by 10 up to 60 coils.
Explanation: