Question

Consider the prismatic surface ABCD. The width of the surface is
w=4 m. The length of the vertical part AB is d=1 m. The part BCD is
a half-cylinder of radius R= 5 m. Take for water density ρw = 1000
kg/m^{3} and gravitational acceleration g=9.81
m/s^{2}. Show on the figure all the parameters used in the
solution, draw the free body diagram, give and explain the required
formulas and Determine

Answer #1

Consider the concrete block of diameter D = 1.3 m, given below.
The specific gravity of sea water and concrete block are equal to
SGseawater= 1.03 and SGconcrete= 2.2. The
water depths h1 = 3 m, h2 = 1.8 m, and
concrete block thickness t = 0.4 m. Take for water density
ρW = 1000 kg/m3, gravitational acceleration
g= 9.81 m/s2 and π= 3.14

You have a glass ball with a radius of 2.00 mm and a density of
2500 kg/m3. You hold the ball so it is fully submerged, just below
the surface, in a tall cylinder full of glycerin, and then release
the ball from rest. Take the viscosity of glycerin to be 1.5 Pa s
and the density of glycerin to be 1250 kg/m3. Use g = 10 N/kg = 10
m/s2. Also, note that the drag force on a ball...

ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

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