A spring stretches by 15cm when a mass of 300g hangs down from it. If the spring is stretched an additional 10cm and released, calculate the spring constant.

Work = force × a. work b. energy c. distance d. momentum

The two required components for a generator

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.