Acounterflow double-pipe heat exchanger is used to heat water from 20°c to 80°c at a rate of 1.2 kg/s. the heating is to be completed by geothermal water available at 160°c at a mass flow rate of 2 kg/s. the inner tube is thin-walled and has a diameter of 1.5 cm. if the overall heat transfer coefficient of the heat exchanger is 640 w/m2k, determine the length of the heat exchanger required to achieve the required heating.

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

What property of an object determines its inertia?

Both independent and dependent clauses