Please do 1,2,3,4,5,6 Thanks 1. A rocket carrying a tank of water weighing the g
ID: 1885147 • Letter: P
Question
Please do 1,2,3,4,5,6 Thanks 1. A rocket carrying a tank of water weighing the gravitational acceleration is one-sixth that of Earth's. Find the mass and the moon weight of the water 8.83 kN on Earth lands on the moon where 2. A fluid completely fills a container that is 1.5 feet high and 1.25 feet in diameter. If the fluid weighs 105.5 lbs. without the container, find, Specific weight and specific gravity 3. A can measuring 4.0 inches in diameter and 6.0 in high is filled with a liquid. If the net weight is 2.0 lb, what is the specific weight of liquid? A container measuring 10.0cm diameter by 20 cm height is filled with a liquid. If the net weight is 450 N. What is the specific weight of liquid? 4. 5. What is the specific gravity of SAE oil, which has a specific weight of 57.4 lb f 6. Determine the force required to drag a small barge (10 ft by 30 ft) in a shallow canal (3 inches deep) in order to maintain a velocity of 5 ft/sec. Assume that the fluid is behaving in a Newtonian fashion and the water temperature is 68°F.
Explanation / Answer
ans1=
weight= mass * acceleration due to gravity= m*g
or, 8.83* 1000= m* 9.81
or, m=900.1 kg
weight on moon= 900.1 * 9.81* 1/6 = 1.472 kN
2.
assuming container to be cylindrical:
volume= pi * r2 * h
=3.14 *(1.25 2 /4 )*1.5
=1.84 ft3
density= mass/ volume= 105.5/ 1.84= 57.34 lb/ ft3
specific gravity= density/ density of water= 57.34/ 62.428= 0.918
specific wt= wt/ volume= 105.5/ 1.84= 57.34 lbf/ft3 ( since weight already mentioned and not mass)
3.
volume= pi * r2 * h
=3.14* (4/2)2 * 6= 75.36 in3
weight=2 lb
specific weight= weight/ volume= 2/ 75.36= 0.026 lbf/ in3
4.
volume= pi * r2 * h
=3.14 * (10/ 2)2 * 20
= 1570 cm3= 0.00157 m3
specific weight= weight/ volume
=450/ 0.00157
=286.624 kN /m3
5.
SPECIFIC GRAVITY= specific weight of SAE/ specific wt of water
= 57.4/ 62.43
=0.919
6.
here coefficient of drag= Cd is not mentioned.
assuming=0.8
drag force= Cd * density* velocity2 * area/ 2
= 0.8* 62.4 *52 * 10* 30/2
=187200 lbf