All of the following are assumptions presented by dalton's atomic theory except that
a....
Physics, 13.10.2019 00:20 jesusdelao
All of the following are assumptions presented by dalton's atomic theory except that
a. atoms combine with other atoms.
b. all atoms of different elements are alike in size, shape, and weight.
c. all matter consists of atoms.
d. atoms don't break into pieces even during chemical reactions.
Answers: 1
Physics, 22.06.2019 16:30
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Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
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Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Physics, 22.06.2019 22:00
Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has
Answers: 1
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