Physics, 27.07.2019 01:10 lilyrockstarmag
Small spheres of radius r, density p, and specific heat capacity c are heated to a temperature of t; and dunked in a oil bath at tot) to induce a phase transition. if the temperature of the oil bath can be assumed to be a constant, and that the heat transfer from each sphere to the surrounding fluid can be thought of as independent of the presence of other spheres, find the expression for temperature t(t) as a function of time. assume that the heat transfer coefficient is h. for small enough spheres, the heat transfer coefficient can be approximated as h ~ find the time constant τ for spheres with r = 1 mm, ρ = 7000 kg/m3, c = 400 j/k/kg, how long does it take for the sphere to reach 100 °c if t-500 °c and too-25 °c r. koil = 0.2 w /m/k.
Answers: 3
Physics, 22.06.2019 11:10
Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.
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Physics, 22.06.2019 19:30
Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f
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Physics, 23.06.2019 01:30
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.
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Small spheres of radius r, density p, and specific heat capacity c are heated to a temperature of t;...
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