1. Three point-masses lie in a plane and are connected by masses rods so that they cannot move relative to each other. The masses and their positions are: m₁ = 2.1 kg at (-9, - 3) m2 = 2.6 kg at (5, 10) m3 = 4.1 kg at (-9, 5) with distances in meters. Calculate the location of this system's center of mass. 2. Find the center of mass of the region bounded by z = 1 - x²-y², z = 0, with mass density p = k(x² + y²).

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I need help with this problem and an explanation for the solution described below. (Calculus 3: Centers of Mass)

1. Three point-masses lie in a plane and are connected by masses rods so that they cannot move
relative to each other. The masses and their positions are:
m₁ = 2.1 kg at (-9, - 3)
m2 = 2.6 kg at (5, 10)
m3 =
4.1 kg at (-9, 5)
with distances in meters. Calculate the location of this system's center of mass.
2. Find the center of mass of the region bounded by z = 1 - x²-y², z = 0, with mass density
p = k(x² + y²).
Transcribed Image Text:1. Three point-masses lie in a plane and are connected by masses rods so that they cannot move relative to each other. The masses and their positions are: m₁ = 2.1 kg at (-9, - 3) m2 = 2.6 kg at (5, 10) m3 = 4.1 kg at (-9, 5) with distances in meters. Calculate the location of this system's center of mass. 2. Find the center of mass of the region bounded by z = 1 - x²-y², z = 0, with mass density p = k(x² + y²).
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