Auniform rectangular segment of copper wire with length and cross-sectional area has resistance: r. then this resistor is melted down, and 1/5 the material is used to make a new uniform rectangular resistor with resistance r. what is the length of thisnew resistor?
Answers: 3
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 12:30
If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather
Answers: 2
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 2
Auniform rectangular segment of copper wire with length and cross-sectional area has resistance: r....
Mathematics, 24.03.2021 16:00
Computers and Technology, 24.03.2021 16:00
Mathematics, 24.03.2021 16:00
Engineering, 24.03.2021 16:00
Physics, 24.03.2021 16:00
Business, 24.03.2021 16:00
Biology, 24.03.2021 16:00
Mathematics, 24.03.2021 16:00
Mathematics, 24.03.2021 16:00
French, 24.03.2021 16:00
English, 24.03.2021 16:00
Biology, 24.03.2021 16:00
Biology, 24.03.2021 16:00