Ben walks 500 meters from his house to the corner store. he then walks back toward his house, but continues 200 meters past his house to talk to a neighbor. it takes ben 17 minutes from the time he leaves his house until he stops to talk to his neighbor. what is ben’s average velocity? 0.2 m/s 0.5 m/s 0.7 m/s 1.2 m/s

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

How many atoms of nitrogen are in the chemical formula ni(w on

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.