5. For an ideal 2-winding transformer, an impedance 22 comecled across winding 2 (secondary) is referred to winding 1 (primary) by multiplying Z2 by [5 points] (a) The turns ratio (N1/N2) (b) The square of the turns ratio, i.e., (N1/N2) (c) The cubed turns ratio, i.e., (N1/N2)
Answers
The impedance connected across winding 2 to winding 1, we multiply Z2 by the square of the turns ratio (N1/N2).
In an ideal 2-winding transformer, the impedance connected across winding 2 (secondary) can be referred to winding 1 (primary) by multiplying Z2 by the square of the turns ratio (N1/N2).
(a) The turns ratio (N1/N2) represents the ratio of the number of turns in winding 1 (primary) to the number of turns in winding 2 (secondary). It determines the voltage ratio between the primary and secondary windings.
(b) The square of the turns ratio, (N1/N2)^2, is used to calculate the transformation ratio for quantities like impedance, voltage, and current. It accounts for the squared relationship between voltage and turns ratio.
(c) The cubed turns ratio, (N1/N2)^3, is not commonly used in transformer calculations. The square of the turns ratio is sufficient for most calculations involving transformer impedance and voltage/current ratios.
So, to refer the impedance connected across winding 2 to winding 1, we multiply Z2 by the square of the turns ratio (N1/N2).
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Related Questions
Which delivery method contract is characterized by contractual privity between all of the primary players; owners/architects/contractors
Answers
Contractual privity between owners, architects, and contractors is a defining feature of the Integrated Project Delivery (IPD) methodology.
What are the three different approaches to project delivery?The most popular project delivery techniques used today include: DB Design-Build DB Design-Bid-Build (DBB) Risks to Construction Management (CMAR)
Which project delivery approach enables one entity to be in charge of both the creation of the design and the execution of the project's construction?When the project owner wants one company to be in charge of both the design and the construction, a design-build agreement is the best option. Under a tight deadline, design-build is frequently the chosen contractual approach. In contrast to a competitive process, DB contracts are frequently awarded by negotiation.
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What is a solution based process and why is it important to engineering
Answers
Answer:
What is a solution-based process and why it is important in engineering? The solution-based process are steps that engineers follow when they are trying to solve a problem / create a solution for something. It is important because it makes it easier to identify mistakes to solve problems.
Explanation:
Match the use of the magnetic field to its respective description.
Answers
oooExplanation:
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8.
Galileo proposed the heliocentric model of the solar system.
a. True
b. False
Answers
Answer: B the first person to propose the heliocentric model of the solar system was Nicolaus Copernicus
Explanation:
What is the difference between DIN and Yoke regulator?
Answers
Answer:
The main difference between a DIN and Yoke regulator is the way they are mounted. A DIN regulator is mounted directly to the cylinder, while a Yoke regulator is mounted to the cylinder using a yoke bracket. The DIN regulator is more compact and lightweight, while the Yoke regulator is more robust and can handle higher pressures. Additionally, the Yoke regulator is more adjustable and can be used for a wider range of applications.
Select the correct answer.
Alan is walking on a street and passes by a very busy construction site. He sees engineers hanging one end of various objects to the ceiling and the other end to heavy
weights. They observe the objects and then then take down notes. What are the engineers doing
Answers
Answer: the engineers are performing a tensile test
Explanation:
i took the test and got it right
Mid-State Medical Center wishes to upgrade their in-house MRI to a 3 Tesla magnet, which gives sharper pictures and should reduce the time it takes to complete a procedure. You have gathered the following details on the potential investment: The cost to buy and install the new scanner is $1.3 million. The scanner is expected to last seven years and it should have a salifinge Supplies per scan will total $100 per scan in year 1 and increase 3% per year. Maintenance will be a fixed $120,000 per year in the first year and increase 3.5% per year. Calculate the cash flows associated with this proposed project.
Answers
Mid-State Medical Center is considering upgrading their in-house MRI to a 3 Tesla magnet. The cost to buy and install the new scanner is $1.3 million. The scanner is expected to last seven years, and it should have a salifinge Supplies per scan total of $100 per scan in year 1 and increase 3% per year.
Maintenance will be a fixed $120,000 per year in the first year and increase 3.5% per year.To calculate the cash flows associated with this proposed project, let's first calculate the annual expenses:Year 1: Supplies per scan = $100 * 1 scan = $100Maintenance = $120,000Total expenses in Year 1 = $1,420,000Year 2: Supplies per scan = $100 * 1.03 = $103Maintenance = $120,000 * 1.035 = $124,200Total expenses in Year 2 = $1,426,200Year 3: Supplies per scan = $100 * 1.03^2 = $106.09
Maintenance = $120,000 * 1.035^2 = $128,944.70Total expenses in Year 3 = $1,434,944.70Continuing on with this same pattern, the total cash flows (expenses) associated with this proposed project will be:$1,420,000 + $1,426,200 + $1,434,944.70 + ... + (7th year total)
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Plz help quick plz :)))
Dan is a Civil Engineer for a company that builds nuclear power plants throughout the world. Which best describes the places he works and what he does there?
A. at an office analyzing blueprints, and at public meeting where safety regulations are explained
B. at an office creating computer models for power plants, and at sites where the plants are constructed
C. in a laboratory, where he designs power plants, and in a factory where the plants are manufactured
D. in a warehouse, where he orders parts, and at sites where the parts are installed in the power plants.
Answers
C. in a laboratory, where he designs power plants, and in a factory where the plants are manufactured
The declaration that best delineates the places Dan works and what his function there is as follows:
In a laboratory, where he specifically designs power plants, and in a factory where the plants are manufactured.Thus, the most valid option for this question is C.
What are the roles of civil engineers?The roles of civil engineers are determined by the fact that they plan, design and oversee the construction and maintenance of building structures. It is a type of professional that involves designing and building complicated structures and extensive facilities such as multi-story car parks, train stations, stadiums, hospitals, and airports.
Dan is a person who is Civil Engineer for a company that typically manufactures nuclear power plants throughout the world. The statement definitely illustrates the working profession of Dan. Therefore, according to the information, the most valid option for this question is found to be C.
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Select the correct answer. What was the advantage of using transistors instead of vacuum tubes in the second-generation computers
Answers
The advantage of using transistors instead of vacuum tubes in the second-generation computers was improved efficiency and reliability.
Transistors are smaller and more lightweight compared to vacuum tubes, allowing for the creation of smaller and more compact computer systems. This resulted in significant space savings, as well as reduced power consumption. Additionally, transistors produced less heat compared to vacuum tubes, which reduced the risk of overheating and improved the overall reliability of the computer systems.
Furthermore, transistors were more durable and had a longer lifespan compared to vacuum tubes. Vacuum tubes were known to be fragile and had a tendency to burn out quickly, requiring frequent replacements. In summary, the advantages of using transistors in the second-generation computers included improved efficiency, reliability, smaller size, lower power consumption, and longer lifespan compared to vacuum tubes.
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Help me please! Thank you so much!
Answers
Sorry sir i don't know the answer
The compartments of these tanks are closed and filled with air. Gage A reads 207 kPa. Gage B registers a vacuum of 254 mm of mercury. What will gage C read if it is connected to compartment 1 but inside compartment 2
Answers
Answer: 240.9 Kpa
Explanation:
Let first changes pressure Gage B from mm of mercury to KPa. That is,
254mm of mercury = 33.86KPa.
To calculate the pressure at C, we need to consider the atmospheric pressure and calculate the absolute pressure of the tank compartment
At gage C, the reading will read P1– P2
Where P1 = absolute pressure
Give that the pressure at B = 254 mm Hg
But (101.33/760) = 33.87 kPa
Where 101.33 = atmospheric pressure
Therefore,
P2 = 101 - 33.87 = 67.13 kPa
P2 = Pa ( pressure at A
Absolute P1 = Patm + Pa= 101 + 207 = 308 kPa abs.
Therefore, Pc = 308 - 67.13
Pc = 240.9Kpa
Therefore, gage C will read 240.9 Kpa if it is connected to compartment 1 but inside compartment 2
Propose a solution (10 points) imagine you are an engineer who wants to design a new device to generate electricity using wave and tidal power
Answers
One solution could be to design a floating platform with turbines that can capture the kinetic energy of both waves and tides to generate electricity.
Explanation:
In order to design a new device to generate electricity using wave and tidal power, an engineer should first consider the natural forces that create these waves and tides. The device should be able to harness the kinetic energy of the waves and tides, and convert it into electrical energy. The device should also be able to withstand the harsh conditions of the ocean environment, including strong winds, currents, and saltwater corrosion. The device should be designed to be efficient, cost-effective, and environmentally friendly. The device should be tested and optimized to ensure that it is capable of generating a consistent and reliable source of electricity over the long term.
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The oxygen consumption of an activated sludge plant is 60 g O2/L.d for the degradation of
carbon compounds. In addition, 50 % of this quantity is required for the nitrification. How many
percent of the nitrogen inflow load of 10 g N/L.d are oxidized with a specific oxygen
consumption of 4.6 g O2/g N?
Answers
Answer:
sorry di ko alam
Explanation:
️♀️️♀️
Consider an airplane patterned after the fairchild republic a-10links to an external site., a twin-jet attack aircraft. the airplane has the following characteristics: wing area
Answers
step: 1 of 16
The static thrust is defined as such a force which is developed and applied by the jet engine on the surrounding air or earth when the airplane is at rest condition.
Power is defined as the rate of doing work with respect to time. Power is a scalar quantity and having no direction. The unit of power is J/s or watt in an hour(w) .
The expression to calculate the resultant power Ps is,
PRETV …… (1)
Here, Ps is the required power, T R is the required thrust and is the velocity of the airplane at a certain altitude.
The expression for the actual power for two engines is,
P, = 2(TV) …… (2)
Here, т. is the actual thrust and is the velocity of the airplane for a given altitude.
step: 2 of 16
Write the expression for the thrust of an airplane.
TRE W CIC) …… (3)
Here, T R is the required thrust, W is the weight of the airplane, с. is the lift polar coefficient of the airplane and Ср is the drag polar coefficient of the plane.
Write the expression for the lift polar coefficient of the airplane.
W C 1 2P. Vis …… (4)
Here, P is the air density, is the velocity of the airplane for a given altitude and S is the wing area.
Write the expression for drag polar coefficient.
C, = CD,0 + C πε(AR) …… (5)
Here, Сро is the zero-lift drag coefficient, is the Oswald’s efficiency factor and AR is the aspect ratio.
It is clear from the power required curve that maximum velocity at the altitude at 5 km is
Hence, the required maximum velocity at the altitude of 5 km is295 m/s.
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In which model of the system, the change in order is generated depending on the system activities. *
Static Model
Dynamic Model
Analytical Model
Numerical Model
Answers
Answer:
Static Model
Explanation:
A single crystal of a metal that has the FCC crystal structure is oriented such that a tensile stress is applied parallel to the [100] direction. If the critical resolved shear stress for this material is 1.98 MPa, calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the direction.
Answers
Answer:
the magnitude of the stress necessary to cause slip to occur on the (111) plane in the \([1 0 \overline 1]\) direction is 4.85 MPa
Explanation:
From the given information;
To determine the angle \(\phi\) between the direction [100] and [111]; we have:
\(\phi = cos ^{-1} [\dfrac{u_1u_2+v_1v_2+w_1w_2}{ \sqrt{(u_1^2+v_1^2+w_1^2) (u_2^2+v_2^2+w_2^2) }}}\)
where;
[u₁,v₁,w₁] and [u₂, v₂, w₂] are directional indices.
replacing 1 for u₁ , 0 for v₁ and 0 for w₁ ;
also replacing 1 for u₂, 1 for v₂ and 1 for w₂ ; we have :
\(\phi = cos ^{-1} [\dfrac{1*1+0*1+0*1}{ \sqrt{(1^2+0^2+0^2) (1^2+1^2+1^2) }}}\)
\(\phi = 54.7^0\)
To determine the angle \(\lambda\) for the slip direction \([1 0 \overline 1]\)
\(\lambda= cos ^{-1} [\dfrac{u_1u_2+v_1v_2+w_1w_2}{ \sqrt{(u_1^2+v_1^2+w_1^2) (u_2^2+v_2^2+w_2^2) }}}\)
replacing 1 for u₁ , 0 for v₁ and 0 for w₁ ;
also replacing 1 for u₂, 1 for v₂ and -1 for w₂ ; we have :
\(\lambda = cos ^{-1} [\dfrac{1*1+0*0+(0*-1)}{ \sqrt{(1^2+0^2+0^2) (1^2+0^2+(-1^2)) }}}\)
\(\phi = cos ^{-1} [\dfrac{1}{\sqrt{2}}]\)
\(\lambda = 45^0\)
The yield strength for the slip process \([1 0 \overline 1]\) can now be calculated as:
\(\sigma_x = \dfrac{t_{xr}}{cos \phi \ \ cos \lambda}\)
where
\(t_{xr}\) = 1.98 MPa
\(\sigma_x = \dfrac{1.98}{cos 54.7^0 \ \ cos 45}\)
\(\sigma_x = \dfrac{1.98}{0.5779 *0.7071}\)
\(\mathbf{\sigma _x = 4.85 \ MPa}\)
Hence, the magnitude of the stress necessary to cause slip to occur on the (111) plane in the \([1 0 \overline 1]\) direction is 4.85 MPa
What is the main purpose of the alternater
Answers
Answer:
to keep the battery charged when the vehicle is running, it also helps the battery keep the electrical components in your vehicle charged
Explanation:
If you find fluid dripping from a vehicle where is the likeliest direction to look for the actual leak
Answers
If I find fluid dripping from a vehicle, the likeliest direction to look for the actual leak is upwards” from ground based.
How will you identify the origins of any fluid leaks?A person has to look for leaks in the heater hoses, water pump, engine core plugs, radiator hoses, and radiator hoses. When the engine is cold, the coolant level should be checked.
Note that The coolant level need to or should be visible in the coolant overflow reservoir. There can be a leak if the fluid level does not or was unable to reach the full line.
Therefore, If I find fluid dripping from a vehicle, the likeliest direction to look for the actual leak is upwards” from ground based.
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Answer:
If you notice a leak near the rear of the vehicle, you must consider a defective fuel tank is a cause. Fuel leaks can occur in two ways - near the rear of the vehicle and near the front if the fuel line is broken or an injector is going bad. Both fuels are clear, but diesel might have a slight blue tint to it when compared to regular fuel.
Explanation:
A shaft of a circular cross section is supported by two housings at B and C. The shaft
is subjected to static loads: concentrated force N applied by gear D and an applied torque T. The yielding strength of the shaft is Sy, and the diameter of the shaft is d. For circular cross sections, | = nd*/64, J = md*/32. The length of the shaft is L. Transverse shear stress is ignored here.
1) Draw the bending moment diagram of the shaft. Specify the location of the weakest (most dangerous) cross section A on bending moment diagram.
2) Draw the weakest point(s) on cross section A.
3) Determine the von-Mises stress at the weakest point(s).
4) Determine the factor of safety n based on Distortion Energy Theory.
Answers
Answer:
1) The bending moment diagram of the shaft is shown in Figure 1. The weakest cross section A is located at the point where the bending moment is maximum.
2) The weakest point on cross section A is located at the point where the bending moment is maximum.
3) The von-Mises stress at the weakest point is given by:
σ = M/I
where M is the bending moment and I is the moment of inertia of the cross section.
4) The factor of safety n is given by:
n = Sy/σ
where Sy is the yield strength of the shaft and σ is the von-Mises stress at the weakest point.
Explanation:
Hope this helps!
a 3500 psi concrete is made with limestone aggregate. suppose you replace 55% of the aggregate with solid steel balls (about the same average size as the aggregates). is the compressive strength going to increase? what about the elastic modulus? please justify your answer.
Answers
The modulus of elasticity of concrete increases in proportion to the magnitude of the material's compressive strength. This can be explained by a higher coefficient (correlation) between the compressive strength (square root) and modulus of elasticity of concrete.
What connection exists between strength and modulus of elasticity?It is an essential mechanical property of concrete. As the modulus of elasticity increases, the material stiffens and the structure's deflection decreases. A compressive strength test must be used to calculate the modulus of elasticity of concrete. It is a critical mechanical property of concrete. As the modulus of elasticity increases, the material stiffens and the structure experiences less deflection. The elastic modulus of concrete must be calculated using a compressive strength test.In general, the compressive strength of concrete and its elastic modulus are inextricably linked. The elastic modulus of concrete increases as its compressive strength increases.To learn more about elastic modulus refer to:
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A cantilever beam AB of length L has fixed support at A and spring support at B.
The spring behaves in a linearly elastic manner with stiffness k. If a concentrated
load P is applied at B, use any type of method to find:
(i) the force in the spring
Fb
,
(ii) the downward displacement
B
of end B. (15%)
Answers
The force in the spring will be \(F =\dfrac{KPl^3}{3EI}\).
The deflection of the beam will be \(\rho\) = \(0.15(\dfrac{KPL^3}{3EI})\)
What is a cantilever beam?A rigid, horizontally extending structural member known as a cantilever is supported at only one end. Typically, it extends from a solidly affixed flat vertical surface, such as a wall.
Given that:-
A cantilever beam AB of length L has fixed support at A and spring support at B.The spring behaves in a linearly elastic manner with stiffness k. If a concentrated load P is applied at B.The spring force will be calculated as:-
\(F = kx\)
Deflection will be given by:-
\(x = \dfrac{PL^3}{3EI}\)
The spring force will be calculated by:-
\(F = \dfrac{KPL^3}{3EI}\)
The deflection of the beam will be given as:-
\(\rho = \dfrac{0.15KPL^3}{3EI}\)
Therefore the force in the spring will be \(F =\dfrac{KPl^3}{3EI}\)..The deflection of the beam will be \(\rho\) = \(0.15(\dfrac{KPL^3}{3EI})\)
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Technician A says that charging system testing requires that the battery be at least 75% charged. Technician B says that a digital multimeter can not be used to test charging system voltage. Who is right
Answers
A digital multimeter can not be used to test charging system voltage,So Technician A and Technician B is not correct.
Neither technician is entirely correct.
Technician A is partially correct in that it is generally recommended to have a battery that is at least 75% charged before testing the charging system. However, this is not an absolute requirement, and some testing can still be performed with a battery that has a lower charge.
Technician B is incorrect in stating that a digital multimeter cannot be used to test charging system voltage. In fact, a digital multimeter is one of the most commonly used tools for this purpose, and it can provide accurate readings of the voltage output from the alternator.
Therefore, the correct answer is neither A nor B.
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Installation a2 An insulated rigid tank initially contains 1.4-kg saturated liquid
water and water vapor at 200°C. At this state, 25 percent of the
volume is occupied by liquid water and the rest by vapor. Now an
electric resistor placed in the tank is turned on, and the tank is
observed to contain saturated water vapor after 20 min. Determine
(a) the volume of the tank, (b) the final temperature, and (c) the
electric power rating of the resistor
nd demo of reaper in Mahindra Yuvo 575 DI tractor
Answers
Answer:
Explanation:
It appears that you are trying to solve a problem involving an insulated rigid tank containing saturated liquid water and water vapor. To determine the volume of the tank, you will need to know the mass of the liquid water and the mass of the water vapor. The mass of the liquid water can be calculated by multiplying the mass of the water and vapor mixture by the fraction of the mixture that is liquid water (1.4 kg * 0.25 = 0.35 kg). The mass of the water vapor can be calculated by subtracting the mass of the liquid water from the total mass of the mixture (1.4 kg - 0.35 kg = 1.05 kg).
To determine the final temperature of the tank, you will need to know the amount of heat added to the tank by the electric resistor and the specific heat capacity of the water and water vapor mixture. The specific heat capacity is a measure of the amount of heat required to raise the temperature of a substance by a certain amount. The specific heat capacity of water is 4.186 J/g°C, and the specific heat capacity of water vapor is 2.080 J/g°C.
To determine the electric power rating of the resistor, you will need to know the amount of heat added to the tank by the resistor and the time over which the heat was added. The power rating of the resistor is equal to the amount of heat added to the tank divided by the time over which the heat was added.
I hope this helps clarify the problem and provide some guidance on how to solve it. If you have any further questions or need additional help, please don't hesitate to ask.
Consider a condenser in which steam at a specified temperature is condensed by rejecting heat to the cooling water. If the heat transfer rate in the condenser and the temperature rise of the cooling water is known, explain how the rate of condensation of the steam and the mass flow rate of the cooling water can be determined. Also, explain how the total thermal resistance R of this condenser can be evaluated in this case.
Answers
Answer:
Q = [ mCp ( ΔT) ] \(_{cooling water }\)
(ΔT)\(_{cooling water}\) and Q is given
\(m_{cooling water}\) = \(\frac{Q}{Cp[ T_{out} - T_{in} ] }\)
next the rate of condensation of the steam
Q = [ m\(h_{fg}\) ]\(_{steam}\)
\(m_{steam} = \frac{Q}{h_{fg} }\)
Total resistance of the condenser is
R = \(\frac{Q}{change in T_{cooling water } }\)
Explanation:
How will the rate of condensation of the steam and the mass flow rate of the cooling water can be determined
Q = [ mCp ( ΔT) ] \(_{cooling water }\)
(ΔT)\(_{cooling water}\) and Q is given
\(m_{cooling water}\) = \(\frac{Q}{Cp[ T_{out} - T_{in} ] }\)
next the rate of condensation of the steam
Q = [ m\(h_{fg}\) ]\(_{steam}\)
\(m_{steam} = \frac{Q}{h_{fg} }\)
Total resistance of the condenser is
R = \(\frac{Q}{change in T_{cooling water } }\)
Describe ways Texas and its citizens contributed to the Allied war effort during World War II. (Site 1)
Answers
A steam power plant is represented as a heat engine operating between two thermal reservoirs at 800 K and 300 K. The temperature of the steam in the boiler is 550 K and the temperature of the saturated water in the condenser is 330 K. The rates of heat transfer in the boiler and condenser are 4 MW and 2 MW, respectively. Please answer the following.
Required:
a. Represent the devices present in the heat engine and include their name along with the data given in the problem.
b. If this steam power plant were to operate as a reversible heat engine, with the boiler and condenser temperatures, what would be its thermal efficiency?
c. Use your result from part (b) to determine if the actual steam power plant can achieve such thermal efficiency. Justify your answer.
d. For the actual steam power plant is the Clausius inequality satisfied? Show you computation and discuss whether your result agrees or disagrees with your answer in part (c).
Answers
A second-degree burn may develop bliste
Answers
i mean i have no idea what ya saying but i will just say what goo gle said Second-degree burns are more serious because the damage extends beyond the top layer of skin. This type burn causes the skin to blister and become extremely red and sore. Some blisters pop open, giving the burn a wet or weeping appearance. Over time, thick, soft, scab-like tissue called fibrinous exudate may develop over the wound
Compute the volume percent of graphite, VGr, in a 3.9 wt% C cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of 7.9 and 2.3 g/cm3 for ferrite and graphite, respectively.
Answers
Answer:
Vgr = 0.122 = 12.2 vol %
Explanation:
Density of ferrite = 7.9 g/cm^3
Density of graphite = 2.3 g/cm^3
compute the volume percent of graphite
for a 3.9 wt% cast Iron
W∝ = (100 - 3.9) / ( 100 -0 ) = 0.961
Wgr = ( 3.9 - 0 ) / ( 100 - 0 ) = 0.039
Next convert the weight fraction to volume fraction using the equation attached below
Vgr = 0.122 = 12.2 vol %
4. Lockout/tagout (LOTO) is a safety procedure that ensures dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work?
A) True
b) False
Answers
Answer:
The answer is True
Explanation:
Before taking off a plane travels at a speed of 1/4 km per second. The runaway is 5 km. How many seconds does it take the plane to get to the end of the runaway?
Answers
Answer:
1 5segundos
Explanation: