Ascale contains a spring with a spring constant of 275 n/m. placing a mass on the scale causes the spring to be compressed by 3.25 cm. calculate the elastic potential energy stored in the spring.

The simple interest on a loan of $200 at 10 percent interest per year is $10 per year until the loan is paid off. $15 per year until the loan is paid off. $20 per year until the loan is paid off. $25 per year until the loan is paid off.

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Select the correct answer. what does the process of natural selection involve?