Answer: a) 557.3kN b) 543kN
Explanation:
Buoyant force = weight of water displaced.
Formula for buoyant force = mg×(density of fluid/density of object)
Density of fluid = density of sea water = 1025kg/m³
Mass of the chamber(m) = 54300kg
g = acceleration due to gravity = 10m/s²
Density of chamber = mass/volume
Where volume of sphere = 4/3Πr³
radius = 4.70/2 = 2.35m
Volume = 4/3×Π(2.35)³
Volume = 54.37m³
Density of chamber = 54300/54.37
= 998.7kg/m³
Substituting the values into the formula for buoyant force
Buoyant force= 54300×10×{1025/998.7}
= 557299N
= 557.3kN
b) Tension in the cable = mass of cable × acceleration due to gravity
= 54300×10 = 543000N or 543kN.
Answer:
<h2>28,000 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 800 × 35
We have the final answer as
<h3>28,000 N</h3>
Hope this helps you
An electron shell can hold 2(n^2) electrons (technically) where n is the shell number, i.e. shell 1 can hold 2, shell 2 can hold 8, 3 holds 18 and so on.
The atomic number of Nitrogen is 7, i.e. it has 7 electrons (to match its 7 protons, assuming it isn't an ion).
With the atomic number, you simply start from shell 1 and work out. So we put 2 electrons in shell 1, leaving us with 5 left. Shell 2 can hold 6 so we can fit all 5 in.
In other words, you should have 2 electron shells on the atom, shell 1 with 2 e- and shell 2 with 5 e-.
<span>When there is a fire, you need to be able to get at the extinguisher easily and quickly.
</span>The best place to store a fire extinguisher on a boat is in a readily accessible location. The extinguisher should <span>not be covered up or closed in a storage unit, but in an open area. </span><span>Monthly inspections are necessary to keep your fire extinguisher working properly.</span>