Answers
Archimedes' principle allows us to solve this problem, find:
a) the submerged part h = 2.04 m
b) the downward force W = 3.9 10⁹ N
c) the upward force B = 4 10⁸ N
d) The free-body diagram attach
The parameters given
* The tanker mass with oil M = 400000 Tonnes (10³ kg/1 tonn) = 4 10⁸ kg
* The length and width of the tanker l = 500m and w= 40m
To find
* the submerged part of the tanker
* The force in the tanker
* free body diagram
Fluid mechanics exercises, the Archimedes' principle says that the hydrostatic thrust of a fluidIn on a body is equal to the weight of the desalted liquid.
B = [tex]\rho \ g \ V_{body}[/tex]
Where ρ is the density of the fluid in this case water (ρ = 1000 kg /m³), g is the acceleration of gravity (g = 9.80 m / s²) and V_{body} is the volume of the tanker.
a) In the attached diagram we can see the forces involved, we apply the equilibrium equation
B - W = 0
The volume of the submerged tanker is
V_{body} = l w h
Where l and w are the length and width of the tanker and h is the submerged quantity
We substitute
ρ g (l w h) = W
[tex]h = \frac{W}{\rho \ g\ l \ w}[/tex]
We calculate
h = 4 10⁸ / (10³ 9.8 500 40)
h = 2.04 m
The submerged quantity of tanker using Archimedes' principle is
h = 2.04m
b) The downward force on the tanker's weight
W = m g
W = 4 10⁸ 9.80
W = 3.9 10⁹ N
c) the upward force is the thrust
B = ρ g
B = 1000 9.8 (500 40 2.04)
B = 4 10⁸ N
d) in the attachment we can see a free body diagram with the two forces on the tanker: the weight down and the fluid push up
Archimedes' principle allows finding the submerged part of the tanker
h = 2.04 m
Learn more about Archimedes' principle here:
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|A - B| = √(9² + (-9)² + (-3)²) = √189 = 3√19
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a ball is thrown straight up into the air with an initial speed of 3.1 m/s. a. After 0.24 seconds what is the ball's velocity and b. what is it's acceleration?
Answers
a. The ball's velocity after 0.24 s is 0.75 m/s
b. The acceleration of the ball is given by the acceleration due to gravity
a. The ball's velocity can be calculated with the following equation:
[tex] v_{f} = v_{0} - gt [/tex]
Where:
[tex] v_{f} [/tex]: is the final speed =?
[tex]v_{0}[/tex]: is the initial speed = 3.1 m/s
g: is the acceleration due to gravity = 9.81 m/s²
t: is the time = 0.24 s
The minus sign is because the acceleration is in the opposite direction (downward) of the motion of the ball (upward).
The final speed is:
[tex] v_{f} = v_{0} - gt = 3.1 m/s - 9.81 m/s^{2}*0.24 s = 0.75 m/s [/tex]
Hence, the ball's velocity after 0.24 s is 0.75 m/s.
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You can see another example of velocity here: https://brainly.com/question/13388351?referrer=searchResults
I hope it helps you!
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Answers
la respuesta es 459.183673 kg s2 / m
Answer:
44,100 N
Explanation:
4500(9.8) = 44,100
Consider the mass-on-a-spring system as shown in the figure below. The spring has a spring constant of 1.81e+3 N/m, and the block has a mass of 0.988 kg. There is a constant force of kinetic friction between the mass and the floor of 1.79 N. Starting with the spring compressed by 0.172 m from its equilibrium position, how far will the block travel once it leaves the spring? (Assume that block leaves the spring at at the spring's equilibrium position, marked x=0 in the figure.
Answers
K1Answer:
s= 6.5cm
Explanation:
Point 1: just right before the block leaves the spring
Point 2: the block has v2=0 (stops moving)
Apply Kinetic-Work Theorem:
K1 + U1 + Wother = K2 + U2
K1=0
U1= 1/2×k×x² (k= 1.81e+3 N/m and x= -0.172 m)
Wother = F×s= 1.79×s
K2=0
U2=0
=> s= 6.5cm
This is my attempt to solve. Let me know if this isn't right
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Answers
Nitrogen gas has a molar mass of about 28.0134 g/mol. Then we have a starting amount of
(42 g) / (28.0134 g/mol) ≈ 1.4993 mol
of N₂.
At standard temperature and pressure, one mole of an ideal gas occupies a volume of about 22.4 L. Then 42 g, or 1.4993 mol, of N₂ takes up
(1.4993 mol) × (22.4 L/mol) ≈ 33.6 L
Convert each of the following speed into m/sec:
(i) 72 km/h
(ii) 12.6 km/h
(iii) 23.4 km/h
(iv) 306 km/h
Answers
Answer:
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(ii) 3.5 m/s
(iii) 6.5 m/s
(iv) 85 m/s
Explanation:
1(kilometer/hour) = 1000(meters) / 3600(seconds) can also be expressed as 1(kilometer/hour) = 5/18 (meters/second), which is its simplified form. To convert km/h to m/s, directly multiply the given value of speed by the fraction 5/18.
This information is from: https://www.cuemath.com/measurement/km-h-to-m-s/
Aristotle said that if you dropped a large object and a smaller object that the larger
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We now know that that is___
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true
Answers
Answer: not true
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Answers
Answer:
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Explanation:
Power = work / time
Power = force × distance / time
Power = force × velocity
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P = (10⁶ N) (3000 m/s)
P = 3×10⁹ W
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the same time.
B. It can be used to show how the parts of the cycle relate to one
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C. It can be used to show as much detail as is present in the actual
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Explanation:
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b) Calculate the magnitude of the
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anyone here cold helps me to solve and explain the answer... thanks in advance
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Answer:
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The velocity goes from stand-still to something. Also, to find velocity, I think acceleration and time are 2 constants that are needed to find velocity, which is not present in the question.
Sorry if this is not the answer you wanted.. I just gave a basic guess as to what I think the answer is. I just started to learn physics.
Explanation:
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Answers
Answer:
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Answers
D=speed*times
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104 km
Explanation:
Displacement = Velocity x Time
= 13 x 8
= 104 km
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Answers
Answer:
A. °C
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Answer:
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When a piece of metal mass of 72.17 g is
dropped into a graduated cylinder containing
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Answer in units of g/cm3
.
Answers
Answer:
Explanation:
The trick is in finding the volume.
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Initial Volume=20.92 Subtract
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Density = 72.17 / 5.72
Density = 12.617
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Question 3 A woman sitting in a stationary car notices a man cycling past her at 40 km/hr. Five seconds after he passes her car, she starts following after him. What is the shortest possible distance in which she will catch up to the cyclist if he maintains hrs speep and she obeys the speed limit of 70 km/hr? The car has a maximum acceleration
Answers
The shortest possible distance in which she catches up with the man is 129.7 m.
The given parameters:
speed of the man, v₁ = 40 km/hr
speed of the woman, v₂ = 70 km/hr
time when the woman started moving, t₁ = 5 seconds
To find:
the shortest distance when she catches up with the manConvert the given speed in km/h to m/s
3.6 km/h = 1 m/s40 km/h = 40/3.6 = 11.11 m/s70 km/h = 70/3.6 = 19.44 m/sCalculate the distance moved by the man before she started following him.
Distance moved by the man = speed x time
= 11.11 m/s x 5 s
= 55.55 m
Let the time the woman catches up with the man = t
Apply the following simple principle to calculate the time.
The man is moving forward and the woman is moving forward to close the gap between them, thus both speeds are working against each other.
[tex](v_2-v_1)t = 55.55 \ m[/tex]
the difference in the speed is because they are working against each other.[tex](19.44 - 11.11)t = 55.55\\\\8.33t = 55.55\\\\t = \frac{55.55}{8.33} \\\\t = 6.67 \ s[/tex]
The time when the woman catches up with the man = 6.67 s
The shortest distance at which the woman catches up with the man is calculated as;
Shortest distance = woman's speed x time when she catches up
= 19.44 m/s x 6.67 s
= 129.7 m
Thus, the shortest possible distance in which she catches up with the man is 129.7 m.
Learn more here: https://brainly.in/question/9541933?tbs_match=3
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Answers
Answer:
Crowbar is a tool made of metal rods that are flattened at both ends, with one of them curved. There is also a crowbar that is curved at both ends.
hope it helped
the value of mass of a body is everywhere
Answers
Explanation:
The value of mass of a body is not same everywhere.
Because it depends on gravity and the gravity isn't same at every places.
Answer:
Mass is the quantity of matter contained in a body, while weight is the force by which the body is pulled to the earth's center. Mass is an intrinsic property of a body, as it remains the same everywhere in the universe. Weight is variable due to change in the magnitude of the gravitational force applied by the earth.
What is term for the group of phenomena that includes, melting, boiling, freezing, and condensation?
Phase Change
Seasonal Change
State Change
Time Change
Answers
explain fundamental quantities in
physics
Answers
Answer:
fundamental quanties are mass , time, length, temperature , amount of substance and luminous intensity. All other physical quantity are derived quantity and be made from fundamental quanties.
Explanation:
hope it helps u
Answer:
The other person answered
Explanation:
A positively charged glass rod is bought close to a suspended metal needle. What
can we say about the charge on the needle given that the needle is
a) attracted ?
b) repelled ?
Answers
Answer:
attracted
Explanation:
opposite charges attract each other when the rub against each other
Answer:
This depends because the electrostatic force obeys the principle that states that force between both of the particles does not get affected by the charges of the other thus if the needle is getting attracted it possess negative charges( the opposite charge) .And if they repel it means they have the same charges ( positive charges).
Who among the old Greek Philosophers/Scientists was the first to systematically study the
Stars?
Answers
Previous Answer:
Aristotle
Change:
Aristarchus
Answer:
Aristarchus of Samos was the first Greek philosopher to believe the solar system was organized around the Sun, rather than the Earth. The heliocentric was very unpopular during Aristarchus' lifetime, although it would inspire astronomers centuries later. Ptolemy was an astronomer and mathematician.
why is it important for heat sinks to be made of metal and have a large surface area?
Answers
What is the average velocity of the particle from rest to 9 seconds?
OA.
1 meter/second
OB.
2 meters/second
OC.
3 meters/second
OD.
4 meters/second
Answers
Answer:
B 2m\s
Explanation:
18 m of displacement over the course of 9 seconds
18/9 = 2 m\s
Jo, Daniel and Helen are pulling a metal ring. Jo pulls with a force of 100N in one direction and Daniel with a force of 140N in the opposite direction. If the ring does not move, what force does Helen exert if she pulls the same direction as jo?
Answers
Answer:
she is pulling with 40 N force
Explanation:
The ring does not move means that the forces are equal.
Let's call Jo's force x
We have the quation
140 = x + 100
x = 40