I'm guessing that this is a problem to find the weight of a 90kg mass on a planet where the acceleration of gravity is 4 m/s^2. (Much less gravity than Earth, a little more than Mars.)
Just do the multiplication, and you get
360 Newtons.
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Mass is the quantity of matter contained in a body. The mass of an object is measured in kilogram (kg).
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An electrolytic cell converts electrical energy into chemical energy.
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Im gonna say it is answer A:) Hope this helps!
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