Answer:
The work done by the man is 260 J.
(E) is correct option.
Explanation:
Given that,
Force = 80 N
Distance = 5.0 m
Angle = 30°
Acceleration = 1.5 m/s²
Let F be the man's force
We need to calculate the force
Using balance equation




We need to calculate the work done by the man
Using formula of work done



Hence, The work done by the man is 260 J.
Answer:
A. it contains ultraviolet, visible, and infrared light
The answer is: An electromagnet is a (Solenoid) with a (metal) core.
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Answer:Transformer
Explanation:All the other devices generate their own electricity apart from power line and Transformer, power line just carries electricity. A transformer can be used to step up or step down voltages from a source.