The number of hectares of each crop he should plant are; 250 hectares of Corn, 500 hectares of Wheat and 450 hectares of soybeans
How to solve algebra word problem?
He grows corn, wheat and soya beans on the farm of 1200 hectares. Thus;
C + W + S = 12 ----(1)
It costs $45 per hectare to grow corn, $60 to grow wheat, and $50 to grow soybeans. Thus;
45C + 60W + 50S = 63750 -----(2)
He will grow twice as many hectares of wheat as corn. Thus;
W = 2C ------(3)
Put 2C for W in eq 1 and eq 2 to get;
C + 2C + S = 1200
3C + S = 1200 -----(4)
45C + 60(2C) + 50S = 63750
45C + 120C + 50S = 63750
165C + 50S = 63750 ------(5)
Solving eq 4 and 5 simultaneosly gives;
C = 250 and W = 500
Thus; S = 1200 - 3(250)
S = 450
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Why are specimens usually very thin slices of material.
2. Viscosity is a measure of how easily a fluid flow such as water. Thabo wants to investigate how viscosity of water varies with temperature which can be determined by the following correlation: u=c10 where u = viscosity (N/s. m²) T = temperature (K) C1 = 2.414 x 10-ʻ(N/s. mº) C2 = 247.8 K C3 = 140 K Using MATLAB, create a table for Thabo that shows the viscosity of water as a function of temperature in the range of 0° C (273.15 K) to 100° C (373.15 K) in increments of 5° C. Also, create a graph showing the value of viscosity as a function of temperature. [10 marks]
Answer:
Trust me the answer is B I took the quiz last week
Remembering to lower or block bulldozer and scraper blades, end-loader buckets, dump
bodies, etc., when not in use, and leaving all controls in the neutral position. Would this be
considered protecting yourself or not protecting yourself?
Select the best option
Answer:
Protecting yourself.
Explanation:
you didn't include answer choices but from the text I would assume remembering to do these things would be actively protecting yourself.
Where's an inductor most likely to be found in a power-supply circuit?
What are the colors of a sign which tells you the distance to the next exit of a highway?.
Green with white lettering are the colours of a sign which tells you the distance to the next exit of a highway.
What are the colour signs of distance?Green is a common color for directional signage. Along with location and directions, these signs also tell you how far something is. Blue: This color is also used for wayfinding signage. Information on nearby amenities including rest areas, hospitals, gas stations, and motels is provided by these signs.
Red could be difficult to understand in a crisis because we are taught to interpret it as "stop." Contrarily, green signifies safety and "go," making it clear to the public to maintain composure and abide by the denotations. This is why green emergency signs are utilized in public buildings.
White: A white backdrop indicates a regulatory sign. Yellow: A general warning is sent by the color yellow. Green: Green denotes safe directing indicators or traffic patterns.
Thus, Green with white lettering.
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Calculate LER for the same wing if we increase the span to 0.245 m. By increasing the span, we also increase the glider weight to 0.0523 newtons.
4.74
0.2108
0.0523
0.18
Answer:
0.2108
Explanation:
WA = 0.245 x 0.045 = 0.011025 m2. Then, LER = 0.011025/0.0523 = 0.2108.
eering job role to its description.
project engineer
planning engineer
chief engineer
field engineer
office engineer
heads the engineering department and
ensures that it operates smoothly
performs administrative work to ensure
projects comply with engineering codes
and standards
I rights reserved
Answer:
Dear if possible can you post the complete question
I would be grateful to help you
technician A says that many port fuel-injection systems on four-cylinder engines use a simultaneous firing of injectors. Technician B says that sequential fuel injectors are timed and pulsed individually, much like the spark plugs are sequentially operated in firing order of the engine. Who is correct
In the two scenario above concerning port fuel-injection and sequential fuel injectors, only Technician b is correct.
How many injectors can be found in a 4 cylinder?A vehicle often has one fuel injector per cylinder and if one has a four-cylinder car, it would also have four fuel injectors.
Note that Fuel-pressure regulators that are found on a port fuel-injected systems is one that often work with injector pressures that is said to be of 30 to 55 PSI.
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What does hydraulic force provide in a braking system?
Power
Heat dissipation
Contact surface
Pressure
Answer:
4 or D pressure
Explanation:
A hydraulic braking system transmits brake-pedal force to the wheel brakes through pressurized fluid, converting the fluid pressure into useful work of braking at the wheels.
Answer:
pressure is the correct answer...
Explanation:
mark me brainliest
What math subjects are going to be seen in Industrial Engineering?
Answer:
Industrial Engineers study various types of math including calculus, numerical analysis, statistics, linear algebra, numerical methods, operations research, etc. We do not necessarily use these in our day-to-day activities, but they help to build an analytical mindset that many employers value.
You are surely going to have commercial subjects , honestly when doing engineering every type of math is taught.
marks)
Question 2
Distinguish between the following pairs of terms:
i. Quadrant bearing and Azimuth
5
ii. Constant error and Human error
5
iii. Referencing and Detailing
E
iv.
Accuracy and Precision
V. Bar scale and Representative fraction scale
Answer:
referencing and detailing
Which of the following materials are examples of ceramics?
A
fiberglass, carbon fiber, and Kevlar
B
cedar, mahogany, and bamboo
C
brick, glass, and porcelain
D
nylon, leather, and asbestos
Answer:
c
Explanation:
A are types of fiberous materials
B is woods
c ceramics
D unrelated materials
A 750-m section of river runs parallel to a channel 1,000 m away. an aquifer connecting the two has hydraulic conductivity equal to 7. 0 m/day and an average thickness of 10 m. the surface of the river is 5. 0 m higher than the surface of the channel. estimate the rate of seepage (qseepage) from the river to the channel
Given a 750 m section with distance of 1000m , The calculated rate of seepage from the river to the channel has been calculated to be 262.5 m³/day.
What is the rate of seepage?
This is the calculated rate that shows how water is infiltrated downward into the soil.
The formula is given as
[tex]Q = KA \frac{dh}{dl}[/tex]
A = Area = 750*10 = 7500m
dh = h₂-h₁
= 10 - 5 = 5m
dl = 1000m
[tex]Q = 7*7500*\frac{5}{1000}[/tex]
= 262.5m³
The rate of seepage from the calculation above is 262.5m³.
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5. Tech A says that shock absorbers can be tested with a "bounce test." Tech says than
is industry standard to replace an individual faulty shock absorber. Who is correct?
d. Tech A
b. Tech 8
8. Both A and B
d. Neither Anor B
Answer:
I know A is correct but not so sure about B, like I don't know if B is correct or wrong
List principles that are most relevant to drop jump exercise and justify your answers that selected principles you
are chosen are most relevant?
The principles referred to in the question are called biomechanical principles. Some of them are:
Principles of Force; andThe principle of impulse direction.
The principle that is most relevant to jumping is called Angular Momentum.
What is Angular Momentum?
Simply defined, this refers to the velocity of the rotation of a body around an axis or a fixed point.
Other principles of biomechanics are the principles of:
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52 M ta 10 2-22 2-а. for C calculate the current passing through the 4ohm resistor using thevenin's theorem.
Explanation:
a stationer sell 8 pencil for the cost price of 10 ,find his gain percent
What are employers required to do to keep employees safe from caught-in and -between hazards from hand-held power tools?
Answer:
Employees who use hand and power tools and who are exposed to the hazards of falling, flying, abrasive and splashing objects, or exposed to harmful dusts, fumes, mists, vapors, or gases must be provided with the appropriate equipment needed, including Personal Protective Equipment, to protect them from the hazard.
Explanation:
explain the S.A. co-ordinate system used in surveying
Answer:
A coordinate system is a method for identifying the location of a point on the earth. Most coordinate systems use two numbers, a coordinate, to identify the location of a point. Each of these numbers indicates the distance between the point and some fixed reference point, called the origin
There are withdrawn 100 ft3
of air measured at 30 psia and 90°F from a 50 ft3
tank containing air
initially at 100 psia and 140°F. What is the pressure of the air remaining in the tank if its
temperature is 130 °F?
Answer:
2+2g
what time is good afternoon my
How Monopolies and Collusions Affect the Economy
Describe the concepts of monopoly and collusion in a market economy. Give five examples of monopolies and collusion among sellers and their effects on the market economy.
Answer:
Image result for How Monopolies and Collusion Affect the Economy Describe the concepts of monopoly and collusion in a market economy. Give five examples of monopolies and collusion among sellers and their effects on the market economy.
Collusion can lead to: High prices for consumers. This leads to a decline in consumer surplus and allocative inefficiency (Price pushed up above marginal cost) New firms can be discouraged from entering the market by types of collusion which act as a barrier to entry.
Explanation:
i hope this helped
The coefficient of static friction for both wedge surfaces is μw=0.4 and that between the 27-kg concrete block and the β=20° incline is μg=0.7.
If the wedge has an angle of 5° determine the minimum value of the force P2, parallel to the fixed surface on the left, required to begin moving the block up the incline.
Assuming the wedge has an angle of 5°.The minimum value of the force P that is required to begin moving the block up the incline is: 322.84 N.
Minimum value of force PFirst step
Using this formula to find the weight of the block
W=mg
W=27×9.81
W=264.87 N
Second step
Angles of friction ∅A and ∅B
∅A=tan^-1(μA)
∅A=tan^-1(0.70)
∅A=34.99°
∅B=tan^-1(μB)
∅B=tan^-1(0.40)
∅B=21.80°
Third step
Equate the sum of forces in m-direction to 0 in order to find the reaction force at B.
∑fm=0
W sin (∅A+20°) + RB cos (∅B+∅A)=0
264.87 sin(34.99°+20°) + RB cos (21.80°+34.99°)=0
216.94+0.5477Rb=0
RB=216.94/0.5477
RB=396.09 N
Fourth step
Equate the sum of forces in x-direction to 0 in order to find force Rc.
∑fx=0
RB cos (∅B) - RC cos (∅B+ 5°)=0
396.09 cos(21.80°) - RC cos (21.80°+5°)=0
RC=396.09 cos(21.80°)/cos(26.80°)
RC=412.02 N
Last step
Equate the sum of forces in y-direction to 0 in order to find force P required to move the block up the incline.
∑fy=0
RB sin (∅B) + RC sin (∅B)-P=0
P=Rb sin (∅B) + RC sin (5°+∅B)
P=396.09 sin(21.80°) +412.02sin (5°+21.80°)
P=322.84 N
Inconclusion the minimum value of the force P that is required to begin moving the block up the incline is: 322.84 N.
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what is the temperature difference maintained between the air temperature and the wire in a hot wire sensor?
Answer:
A temperature sensor is installed upstream of the hot wire. The hot wire is then heated to a temperature higher than the air temperature determined by the temperature sensor. As the hot wire is cooled by the incoming air, the heating current must be increased to maintain a constant wire temperature.
Explanation:
An amount P is deposited now so that an equal annual amount of A1=2000 per year for the first 5 years, starting 1year after the deposit. And a different annual withdrawal of A2= 3000 per year for the following 3 years. Draw the cash flow diagram if i=8.5% per year.
Based on the amounts to be withdrawn over the years and the interest rate, the amount deposited now is $12,977.
How much is deposited now?This can be found as:
= (2,000 x Present value of annuity interest factor, 8.5%, 5 years) + (3,000 x Present value of annuity interest factor, 8.5%, 8 years) - (P/A, 8.5%, 5 years)
= (2,000 x 3.9406) + (3,000 x (5.6392 - 3.94064))
= $12,977
The cashflow diagram is attached.
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An operator is working at an open site that has other loud machinery being operated up to 18 hours a day. What type of hazard might the operator be exposed to?
Select the best option.
Extreme Temperature
Radiation
Vibration
Noise
There are lots of hazard. The type of hazard that the operator will be exposed to is noise.
What is noise hazard?Noise is known to be a very popular form of physical hazards that is said to be present in all occupation.
This noise hazard is often based on its frequency, amplitude (volume) and term of exposure such as long or short term, It is said that one should wear hearing protection as long exposure to noise can lead to temporary or permanent loss of hearing.
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Which of these items is least likely to cause an exhaust emission test failure as of a result of excessive nox emissions? a) poorflow through the egr system. b) spark plug hot range. c) defective fuel injector d) defective oxygen senor
The item that is least likely to cause an exhaust emission test failure as of a result of excessive nox emissions is; poorflow through the egr system.
What is an exhaust emission?Exhaust emissions simply means substances emitted into the atmosphere from the exhaust discharge nozzle of an aircraft or aircraft engine.
Now, when the test fails as a result of excessive nox emissions, we can say that high NOx emissions can occur when an engine's air-fuel mixture is too lean. Thus, we can conclude that the reason for exhaust emission test failure as of a result of excessive nox emissions is due to poorflow through the egr system.
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A legal document that traces the ownership of a piece of property
Answer:
A title
Explanation:
A title is a legal document that proves legal ownership over an asset or piece of property. Assets such as homes, land, other types of real estate, vehicles, and personal property such as jewelry all have titles to demonstrate ownership.
An evacuated tank is filled with gas from a constant pressure line. Develop an expression relating the temperature of the gas in the tank to the temperature of the gas in the line. Assume the gas is ideal with constant heat capacities, and ignore heat transfer between the gas and the tank.
The temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
What is temperature?It should be noted that temperature simply means the measure of hotness and coldness in a body
From the given information, H is the enthalpy of gas on the constant pressure line, m is the mass flow rate and U is the internal energy of gas.
Here, the temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
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all of the following are ways to avoid breaking a bolt when removing it except:
select one:
a. using penetrating oil with bolts that are rusted or corroded in place.
b. applying maximum force in both directions.
c. first checking whether it is a left-hand bolt.
d. as a last resort, you may heat up the bolt that is rusted or corroded in place.
All of these are good ideas to remove a bolt, except for applying the maximum force in both directions.
What is a bolt?It is a metallic long bar that is used in multiple objects and machines to fasten two or more elements together.
How to remove a bolt?Bolts are removed using tools such as a 6-point wrench and applying force either to the left or right depending on the bolt. Moreover, rusted bolts need to be carefully removed to avoid breaking them down.
In this way, techniques such as using oil, checking if it is a left-hand bolt, and heating the bolt are valid. However, it is not a good idea just apply maximum force in any direction because this is likely to break the bolt.
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How deep is a 6ft hole?
Answer:
I know this sounds quite deep but it is as deep as a grave
Explanation:
It's reality
Answer:
6ft or 72 inches
Explanation:
The hole is most likely 6ft or also known as 72 inches.
Hope this helps :-)
Have a great rest of your day or night!
<3 simplysun
An adult has a total of about 22.3 square feet (ft2) of skin. Use the fact that 1 m is approximately equal to 3.281 feet to convert this measurement to square meters (m2).
Explanation:
1 meter ≈ 3.281 ft.
so,
1 m² = 1m×1m ≈ 3.281 × 3.281 = 10.764961 ft²
now we have 22.3 ft² of skin.
that would be then
22.3/10.764961 = 2.071535605 ≈ 2.1 m² or even more rounded ≈ 2 m²