Answer: 17.5 kN
Explanation:
force downward on student:
mg+142-mv^2/r=0
mg=mv^2/r-142
mv^2/r=mg+142
at bottom, apparent weight
weight=mg+mv^2/r=mg+mg+142
apparent weight= 89(2g)+142
for force at bottom, reverse v^2/r
force=m(g+v^2/r) = 89 ( 9.8 + v^2 / 19 )
F = mg + mv^2 / r
F = mg + mg + 142 = 2mg + 142 = 2 x 89 x 9.8 + 142 = 17.5 kN
Inversely proportional to the mass of the object directly proportional to the magnitude of the net force in the same direction as the net force
Answer:
Unlike the mineral-rich crust and mantle, the core is made almost entirely of metal—specifically, iron and nickel. The shorthand used for the core's iron-nickel alloys is simply the elements' chemical symbols—NiFe. Elements that dissolve in iron, called siderophiles, are also found in the core.
Explanation:
Hello there,
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Quantum mechanics is the body of scientific laws that describe the wacky
behavior of photons, electrons and the other particles that make up the
universe.
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I hope I was able to help you. :)
[Mark Brainliest] - Correct Certified?
Answer:
30.3 meters, 172 degrees.
Explanation:
