Acar travels 30.0 km to the south and then turns around and travels 20.0 km to the north in 1.5 hours time. what is the card total displacement ? what is the cars average velocity?

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?