Physics, 01.02.2021 17:40 Mistytrotter
Please help ! ✨ The mains electricity supply is at 230V. A different heater transfers 4200 J of energy. Calculate the charge flow through the heater.
Answers: 2
Physics, 22.06.2019 02:00, robert7248
An object has a weight of 500 on earth what is the mass of this object
Answers: 1
Physics, 22.06.2019 02:30, raularriaga
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
Answers: 1
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
Physics, 22.06.2019 16:50, Jstylez1789
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
Answers: 1
Please help ! ✨
The mains electricity supply is at 230V. A different heater transfers 4200 J of ene...
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