Physics, asked by anupamachettri05, 7 months ago

2) What does negative sign
expression of
work

Answers

Answered by Thakshayini

0

Answer:

hi there!!

Explanation:

happy helping ❤️

Negative sign in work done, is expressed when your force and displacement are at an angle of 180 degrees.

Usually friction does negative work.

W = F. d cos ∅

(cos 180 = -1 )

Answered by KHEHRA00

0

Answer:

greater the negative reactivity of standard reduction potential of metal greater is it reactivity

Explanation:

it means that zn is more reactive than hydrogen

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