A woman holds a 41-N weight at arm's length for 11 seconds. Her arm is 1.3-m above the ground. The work done by the woman on the weight to keep the weight steady is J. Round your answer to the nearest whole number.

The work done by the woman is 0.

Explanation:

Weight hold by a woman, W = 41 N

Time for which she hold the weight, t = 11 s

Her arm is 1.3-m above the ground. We need to find the work done by the woman on the weight to keep the weight steady. Work done is given by formula as :

d is the displacement

Here, the women's hand is 1.3 m above the ground. So, there is no displacement. The work done,

W = 0 Joules

Hence, this is the required solution.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.