Physics, 14.09.2019 07:30 aevans3503
Ethyl alcohol has a boiling point of 78.0°c, a freezing point of -114°c, a heat of vaporization of 879 kj/kg, a heat of fusion of 109 kj/kg, and a specific heat of 2.43 kj/kg. k. how much energy must be removed from 0.651 kg of ethyl alcohol that is initially a gas at 78.0°c so that it becomes a solid at -114°c?
Answers: 3
Physics, 22.06.2019 13:20, Jbutler15
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
Answers: 3
Physics, 22.06.2019 18:00, hannacarroll2539
Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c
Answers: 1
Physics, 23.06.2019 01:40, gatorboy1788
The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?
Answers: 1
Ethyl alcohol has a boiling point of 78.0°c, a freezing point of -114°c, a heat of vaporization of 8...
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