You notice a new skateboard park opening up in your community. write a convincing letter to your parents that will justify them paying a monthly membership fee for you to use the park on a regular basis. provide at least 3 reasons why this activity leads to maintaining a healthy lifestyle.

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Is the number of complete movements of a wave per second.