A1000 kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. what is the average speed ? what is the acceleration ? what is the average force acting upon it ? if the car turns along a circle at speed 5 m/s around a curve 30 meters in radius , how big the centripetal force is needed ?

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.)

Name two kinds of practical electric pumps.

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?