masses of 3kg on a smooth horizontal table. It is connected by a light string passing at the edge of the table to another mass of 2kg hanging vertically. When to the system is released from rest with what acceleration do the mass move

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

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

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?