Me podrían ayudar con esta tarea es de física
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Answers: 3
Physics, 21.06.2019 22:40
The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively
Answers: 2
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
Mathematics, 28.09.2019 18:10
Physics, 28.09.2019 18:10
History, 28.09.2019 18:10
Mathematics, 28.09.2019 18:10
Mathematics, 28.09.2019 18:20
Mathematics, 28.09.2019 18:20
Mathematics, 28.09.2019 18:20
History, 28.09.2019 18:20