Aspring required a force of 5.0 n to compress it 0.1 m. how much work is required to stretch the spring 0.4 m?

= 4 joules

Explanation:

Work done by a spring is given by the formula;

Work done = ke²

Where, k is the spring constant

e is the extension.

But;

k = F/e

  = 5 N/0.1 m

  = 50 N/m

Therefore;

Work done when the extension is 0.4 m, will be;

Work done = 1/2 × 50 × 0.4²

                  = 4 joules

heat the gas and measure the pressure

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015