Physics, 29.11.2019 07:31 Guidomigoo3x
Aroller coaster cart of mass m = 223 kg starts stationary at point a, where h1 = 26.8 m and a while later is at b, were h2 = 14.7 m. the acceleration of gravity is 9.8 m/s 2 . what is the speed of the cart at b, ignoring the effect of friction?
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Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering
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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
Aroller coaster cart of mass m = 223 kg starts stationary at point a, where h1 = 26.8 m and a while...
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