Physics, 18.09.2019 01:30 dashaefairley2
Three vectors , , and , each have a magnitude of 52.0 m and lie in an xy plane. their directions relative to the positive direction of the x axis are 29.0 ˚, 191 ˚, and 311 ˚, respectively. what are (a) the magnitude and (b) the angle of the vector (relative to the +x direction in the range of (-180°, 180° and (c) the magnitude and (d) the angle of in the range of (-180°, 180°)? what are (e) the magnitude and (f) the angle (in the range of (-180°, 180°)) of a fourth vector such that ?
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.
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Physics, 22.06.2019 21:30
Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.
Answers: 1
Three vectors , , and , each have a magnitude of 52.0 m and lie in an xy plane. their directions rel...
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