Physics, 22.07.2019 21:00, dedgefield

Glen is heating water in a teakettle. the hotter water at the bottom of the kettle rises. the cooler water near the top sinks and warms. which kind of transfer of heat is this?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 11:50, azertyqwerty123

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Answers: 2

continue

Physics, 22.06.2019 17:30, janicemaxwell123

Does heating a metal wire increase or decrease its electrical resistance? why?

Answers: 1

continue

Physics, 22.06.2019 18:00, levilugar

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.

Answers: 2

continue

Physics, 22.06.2019 20:50, dorkygirl

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)

Answers: 1

continue

Do you know the correct answer?

Glen is heating water in a teakettle. the hotter water at the bottom of the kettle rises. the cooler...