In a car lift used in a service station, compressed air exerts a force on a small piston of circular cross-section having a radius of 3.92 cm. this pressure is transmitted by a liquid to a second piston of radius 15.6 cm. what force must the compressed air exert in order to lift a car weighing 14600 n? answer in units of n.

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

Awalk up the phase change graph worksheet

What is the measure of a change in an objects velocity?