Question

a boy weighing 350N climbs 30 steps each 20 cm high calculate the work done by a boy​

Answer 1

Explanation:

Any ice which reached high enough temperatures to thaw would instantly evaporate and be lost into space. Furthermore, the proximity of Mercury to the Sun means that the levels of UV radiation are probably too high for life to survive there. To date, there is no evidence for life the

10, 2020..

Answer 2

work = force × distance

work = 350 × distance [his weight is the force]

work = 350 × 30 × 0.2 [ 20cm = 0.2m]

work = 2100 Joules