PLEASE HELP ASAP PPLLEEAASSEE how does gravity cause erosion of a rock?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?