A scientist is using a pulley in a laboratory. If the resistance force is 40 Newtons and the effort force is 20 Newtons, what is the mechanical advantage? A. 1 B. 2 C. 3 D. 4
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Updated 3/15/2021 2:16:20 PM
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User: A scientist is using a pulley in a laboratory. If the resistance force is 40 Newtons and the effort force is 20 Newtons, what is the mechanical advantage? A. 1 B. 2 C. 3 D. 4

Weegy: Not Math but I'll to answer...Mechanical advantage is defined as output force/input force since the machine is a pulley, the input force would be 20 N but the output force would be 40 N based on the nature of the machine so 40N/20N = 2 which is B.

User: When a generator rotates a coil of wire in a magnetic field, which of the following is produced? A. magnetic domain B. magnetic pole C. electric field D. electric current

Question
Updated 3/15/2021 2:16:20 PM
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When a generator rotates a coil of wire in a magnetic field, electric current is produced.

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