Question

convert cm to m

Logs of a certain wood (specific gravity 0.309) are cylinders of
radius 16.6 cm and length 5.64 m. Find the minimum
number of logs needed to create a raft to carry a load of mass
7,198 kg when it floats in fresh water (density 1000
kg/m^{3}). Why is using the minimum not
practical?

** NOTE**: The answer will most probably
include a decimal; give this answer, although in real life you
would have to only use a whole number of logs.

Answer #1

logs of a certain wood( specific gravity 0.274) are
cylinders of radius 19.5 cm and length 8.36 m. find the minimum
number of logs needed to create a raft to carry a load of mass
9,418 kg when it floats in fresh water (density 1,000 kg/m^3)

A) Logs of a certain wood (specific gravity 0.383) are cylinders
of radius 13.3 cm and length 8.42 m. Find the minimum number of
logs needed to create a raft to carry a load of mass 8,016 kg when
it floats in fresh water (density 1000 kg/m3). Why is using the
minimum not practical? NOTE: The answer will most probably include
a decimal; give this answer, although in real life you would have
to only use a whole number of...

What is the smallest number of whole logs (density = 760 kg/m³,
radius = 0.088 m, length = 2.82 m) that can be used to build a raft
that will carry 7 people, each of whom has a mass of 86.0 kg?

What is the smallest number of whole logs (density = 735 kg/m³,
radius = 0.088 m, length = 2.88 m) that can be used to build a raft
that will carry 5 people, each of whom has a mass of 82.0 kg?

A raft is made of 11 logs lashed together. Each is 42 cm in
diameter and has a length of 6.0 m . Part A How many people can the
raft hold before they start getting their feet wet, assuming the
average person has a mass of 70 kg ? Do not neglect the weight of
the logs. Assume the specific gravity of wood is 0.60. Express your
answer using two significant figures.

What is the smallest number of whole logs (ρ = 725
kg/m3, radius = 0.0615 m, length = 3.30 m) that can be
used to build a raft that will carry four people, each of whom has
a mass of 63.0 kg?

A glass has circular cross sections that taper (linearly) from
a radius of 7 cm at the top of the glass to a radius of 6 cm at the
bottom. The glass is 12 cm high and full of orange juice. How much
work is required to drink all the juice through a straw if your
mouth is 6 cm above the top of the glass? Use 1000 kg/m3 for the
density of orange juice and 9.8 m/s2 for the...

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