uaemsk1 uaemsk1

12-06-2021
Physics

contestada

If you lift a 80 N book 50 cm off the floor, how much work did you do?

1. 0

2. 4000 J

3. 40 J

4. 1.6 J

A man pushes a couch a distance of 0.75 m. If 450 J of work is done, what is the magnitude of the force applied?

1. 16.9 J

2. 45

3. 1350 J

4. 2700 J

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Hamdann77 Hamdann77

16-06-2021

Aslaam 3lekm m3akm yaseen my 8nat alninkm

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