What is the cross-sectional area of the wire
A toaster rated at 1000 W operates on a 120 V household circuit and a 4.00 m length of nichrome wire as its heating element. The operating temperature of this element is 310°C. What is the cross-sectional area of the wire?
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What will the pressure inside the container become if the piston is moved to the 1.80 mark while the temperature of the gas is kept constant?
A 0.4m3 rigid tank initially contains refrigerant-134a at 14oC. At this state, 70% of the mass is in the vapour phase, and the rest in the liquid phase.
The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
A plane flies 345 km due south, then turns and flies 615 km at a heading 45.0 degrees north of east, until its due east of its starting point. if the plane now turns and heads for home, how far will it have to go?
The density of liquid oxygen at its boiling point is 1.14 {kg/L} , and its heat of vaporization is 213 {kJ/kg}. How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?
What is known about the strength of quadruple bonds compared with the strength of the triple bond in acetylenes and N2?
A wild horse starts from rest and runs in a straight line 29° north of west. After 33 s of running in this direction, the horse has a speed of 17 m/s. (a) What is the magnitude of the horse's average acceleration?
An insulated vertical piston-cylinder device initially contains 0.2 m3 of air at 200 kPa and 22°C.At this state, a linear spring touches the piston but exerts no force on it.
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