Answer:
Explanation:
A continuous fiber-reinforced composite is to be produced by dispersing 60 vol% carbon fibers in a polycarbonate matrix. if the stress in the polycarbonate matrix when the carbon fibers fail is 45 mpa, the longitudinal elastic modulus of the composite using rule of mixture
a pipe discharges wine into a 1.5m diameter tank. Another pipe (15cm diameter), located near the base of the, is used to discharge wine out of the tank. Calculate the volumetric flow rate into the tank if the wine level remains constant at 2.5m.
The volumetric flow rate into the tank if the wine level remains constant at 2.5m is; 0.1232 m³/s
How to Calculate Volumetric Flow Rate?The formula for volumetric flow rate is;
V' = area * velocity
We are given;
Diameter; d = 15 cm = 0.15 m
Thus;
Area; A = (π/4)d²
A = (π/4)(0.15)²
A = 0.0176 m²
Velocity is; v = √(2gh)
v = √(2 * 9.8 * 2.5)
v = 7 m/s
Thus volumetric flow rate is;
V' = 0.0176 * 7
V' = 0.1232 m³/s
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The factor of safety is very important in design. It is determined by comparing the allowable stress to actual stress. What is known if the range of the factor of safety is between .75 and 1
Explanation:
A factor of safety is the load-carrying capacity of a system beyond what the system actually supports. Bridges, buildings, safety equipment, and fall protection all start with a factor of safety.
Simply put, the safety factor is how much stronger a system is than required. The factor of safety is the backbone of all structures and safety equipment and originates with engineers. In the planning phase of all structures and safety equipment, engineers determine the required overload from any object to remain safe in the event of an emergency.
For reliability, structures are typically built stronger than necessary. This is in case a structure experiences a heavier-than-expected load. This is a factor of safety. Ultimately, the amount of stress and overload a structure can handle comes down to the material used to build it.
Determining the factor of safety:
Engineers perform strength tests to determine how much weight a material can handle. Certain materials are more ductile than others, meaning they deform to pressure before breaking more so than others, like brittle materials. Brittle materials simply break once they meet the maximum force.
Ductile materials use yield strength to determine the safety factor. Brittle materials use the ultimate strength.
Yield strength: Determines the safety factor until the start of deformation.
Ultimate strength: Determines the safety factor until failure.
Ductile materials often test the factor of safety against yield and ultimate strengths while brittle materials usually only calculate the ultimate safety factor since the yield and ultimate values are often so close.
The necessary factor of safety of any structure determines the materials used. If a structure has a high required factor of safety, then engineers use a ductile material to build it. The realized factor of safety determines the amount of material used.
Required (design factor): A constant value imposed by law or standard. A structure is required to meet this value at a minimum.
Realized
1. what helped inspire ms. shotwell to become an engineer?
i
2. what is the purpose of the launch escape system for dragon? how does it work?
3. what is one specific reason spacex is successful according to ms. shotwell?
4. what is one example of how physics was used to drive spacex design?
5. why is the satellite internet project difficult for spacex?
6. what is space debris? what is spacex doing to help decrease the amount of debris?
7. what is one way the big falcon rocket (bfr) can be used to make a difference in the world?
8. what are two ways spacex plans to change personal travel?
9. what is your personal opinion of the future goals of spacex? do you believe they will be achieved?
why or why not?
10. would you be willing to travel with spacex in the future? why or why not?
|
The action that inspire Ms. Shotwell is that Her mom took her to a trip to look at the Society of Women Engineers event, and she was said to have quickly fall in love with a mechanical engineer who was a speaker in the event.
What is the purpose of the launch escape system for dragon?The LES is mad up to separate the spacecraft from the Falcon 9 rocket and move the crew away to safety in case any event of any emergency.
SpaceX was said to be successful because:
It consist of two NASA astronauts.It is made up of The Crew Dragon's launch escape system (LES).It is made up of a set of eight SuperDraco engines.Note therefore, that the action that inspire Ms. Shotwell is that Her mom took her to a trip to look at the Society of Women Engineers event, and she was said to have quickly fall in love with a mechanical engineer who was a speaker in the event.
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These gloves offer good pliability and protect against harmful elements such as hydraulic fluids, gasoline and alcohols:
Neoprene are gloves that are designed and developed to offer good pliability and protect against harmful elements e.g hydraulic fluids, gasoline and alcohols.
What is a glove?A glove can be defined as a personal protection equipment (PPE) that are worn on the hands (from the wrist to the fingers), so as to protect and safeguard it from potential burn and chemical hazards.
In Engineering, neoprene are type of gloves that are designed and developed to offer good pliability and protect against harmful elements such as:
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True or false. flashing arrow panels are only used at night.
The flashing arrow panels are not used just at night but are used even during the day time. These are necessary to give the directional information to the drivers. Thus, the given statement is false.
What are the safety instructions?The safety instructions are necessary for the drivers as absence of these would lead to increased number of accidents which could lead to death of a number of people. The flashing arrow panels is one of these instructions.
Flashing arrow panels are used during the day as well as at the night to give advance warning and directional information to the drivers where it is required to move to the right or to the left into another lane.
Some of the safety systems used at level crossings include amber and red warning lights on majority of roads, people should stop when the amber lights come on, unless vehicle has already crossed the stop line.
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Roads in urban areas are generally
Answer:
they probably have more sidewalks and traffic lights.
Explanation:
a lot of people live in urban areas.
In a safety seminar at a nuclear power plant, a technician describes the procedure used if temperatures in the reactor become too high. What procedures should the technician describe?
The procedures that the technician should describe are:
More coolant will be pumped into the reactor.The fuels rods will be lowered into the reactor.What is Nuclear power?This is known to be the method that employs the use of nuclear reactions to create or produce electricity.
Note that in the above scenario, The procedures that the technician should describe are:
More coolant will be pumped into the reactor.The fuels rods will be lowered into the reactor.This is because the coolant will help to reduce the heat level in the reactor and
the fuel rods is needed to power the reactor.
See full question below
In a safety seminar at a nuclear power plant, a technician describes the procedure used if temperatures in the reactor become too high. What procedures should the technician describe?Select all that apply.- May be more than one answer
a. More coolant will be pumped into the reactor.
b. The control rods will be taken out of the reactor
c.The fuels rods will be lowered into the reactor.
d. The control rods will be lowered into the reactor.
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What is the objective of phasing out an INDUCTION MOTOR before putting the machine into commission?
The main objective of phasing out an INDUCTION MOTOR is to identify the ends of the stator coils.
What is an induction motor?An induction motor is a device based on alternate electricity (AC) which is composed of three different stator coils.
An induction motor is a device also known as an asynchronous motor due to its irregular velocity.
In conclusion, the objective of phasing out an INDUCTION MOTOR is to identify the ends of the stator coils.
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the most important element in the regulation of the hts is the
Answer:
Explanation:
the driver who obeys traffic laws
True or false?Inventory-risk costs are a form of carrying costs.
or...................
Answer:
i believe it is true
Explanation:
When two watercraft are crossing each other's paths, which should
assume the give-way responsibility?
The watercraft in the crossing are given with the responsibility to the starboard side to give the way and avoid collision.
What are crossing rules?The crossing rules are given as the safety rules that are mediated in order to avoid the collision accidents when the two vehicles are crossing the path.
In the sea, the rules are given with the watercraft at the starboard side or the giveaway side to make the way to the other watercraft and avoid collision.
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If a 1500 V load is ac coupled to the output in Figure 9–60, what is the resulting output voltage (rms) when a 50 mV rms input is applied? gm = 5000 mS.
The resulting output voltage (rms) when a 50 mV rms input applied is -187.5 mV.
What is rms voltage?Root Mean Square Voltage is the amount of AC power which produces the same heating effect as DC Power would have produced.
Vo = -gm x Vi (Rd II Rl )
Vo = -5000 x 10⁻⁶ x 50 x 10⁻³ x (1.5k II 1.5k )
Vo = -25 x 10⁻² x 750 x 10⁻³
Vo = -187.5 mV
Hence, resulting output voltage (rms) when a 50 mV rms input applied is -187.5 mV.
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What refrigeration control device is used to make sure that the bearings in a compressor are receiving proper lubrication
A Thermostat refrigeration control device is used to make sure that the bearings in a compressor are receiving proper lubrication.
What are refrigerant manipulate devices?A tool for controlling the waft of refrigerant to the circuits of a multi-circuit evaporator in a refrigeration system, comprising an orifice plate having a refrigerant enlargement orifice and a distributor plate having passages into which interchangeable metering jets are inserted.
The thermostat controls the cooling system by tracking the temperature after which switching the compressor on and off. When the sensor senses that it is bloodless sufficient internal a refrigerator, it turns off the compressor. If it senses an excessive amount of heat, it switches the compressor on and starts off evolving the cooling system again.
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Determine the power output of the draw-works motor M necessary to lift the 600-lb drill pipe upward with a constant speed of 4 ft/s. The cable is tied to the top of the oil rig, wraps around the lower pulley, then around the top pulley, and then to the motor.
Answer:
[tex] \therefore [/tex] The power output of the draw-works motor is 4.36 hp
Explanation:
Given that,
600 lb of weight of the drill pipe 4 ft/s constant velocity of the motorM power output of the motorAs the problem given, the cable is tied of the top on the oil rig and it wraps around the lower pulley and the top pulley. So, we will be using the formula below:
[tex] \boxed{\rm{2s_p + s_M = l}} [/tex]Differentiate it but with respect to the time. Therefore,
[tex] 2v_p +v_M = 0 [/tex]Thus,
[tex] V_M = -2v_p = -2(-4) = 8 \ ft/s [/tex]Thus, the power output should be
[tex] P = Fv = \bigg(\frac{600}{2}\bigg) \cdot 8 = 2400 \ lb \cdot ft/s = \frac{2400}{550} = 4.36 \ hp [/tex]
[tex] \therefore [/tex] The power output of the draw-works motor is 4.36 hp
* Question 1: Design alarm system as shown below. The alarm turns on when one of the following
conditions happened:
A. Motion IR sensor & window sensor
activated.
B. Motion IR sensor & door sensor
activated.
C. Otherwise the buzzer off.
(A)
Warning
Motion
Sensors
Buzzer
Suppose that: Warning buzzer on pin 8
Motion sensor on pin 5
Window sensor on pin 6
Door sensor on pin 7
The buzzer works on beating mode.
(C)
Door
sensor
TE
(B)
Window
Sensors
Answer:
A
Explanation:
Why do i pick the most exspensive hobbies
Airsoft and building pcs
Answer: You make more money
Explanation: A pc is like 2k+ to build so imagine all of the profits coming in from your business/work.
What are the philological elements of interior design most like?
o a well-selected outfit that gives people an idea of who the wearer is
a public address glven via the intercom system of a large building
o a perfectly written letter that exactly conveys the writer's point
o a complex but silent conversation between two people in sign language
Answer:
Ea public address glven via the intercom system of a large buildingxplanation:
Why are manhole covers round in most of the cases?
Answer:
Explanation:
Because there are no angles for alignment, the round shape makes these heavy covers easier to put back on once they're taken off. Round covers are also easier to manufacture. But the main reason manhole covers are round is so they won't accidentally fall into the manhole itself.
Help me plss... :‹
[tex] \: \: \: [/tex]
Answer: You're question is very vague... be more specific in the problem, what is it asking you to do?
Explanation: This shouldn't be under "Engineering" you should put it under "Mathematics" for a better result. Sorry for the mix up! Hope this helps! ^^
Is a diesel truck less expensive to drive than a gas truck?
Answer:
Typically, diesel trucks cost more than those with gas engines, especially when you're first buying them, as diesel is usually featured as an add-on for gas-powered cars. Diesel add-ons can cost over $5,000 for midsize trucks and around $10,000 for heavy-duty trucks.
Explanation:
Make me brain pls
A ladder of length l is leaning against a domed roof with a radius r. The base of the ladder is distance d from the base of the dome. The ladder begins to slide. Determine the IC at the moment the ladder slides if:
l = 2 m
r = 1 m
d = 0.5 m
And the x-y origin is centered at the left base of the ladder (point O).
The IC at the moment the ladder slides based on the lengths and other information given will be (0, 1.32)
How to calculate the IC?From the information given, the calculation will be computed below:
l cos a = 1.5
cos a = 1.5/2
cos a = 0.75
a = 41.4°
ab = a/cos a = 1.5/cos41.4
ab = 1.5/0.75
ab = 2
b = 2 × sin 41.4
b = 2 × 0.66
b = 1.32
Therefore, the IC will be (0, 1.32).
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One of the principles of supply chain strategy
The principle of supply chain strategy is Segregate customers on the basis of service needs of different groups and follow the supply chain to deliver goods and services to the consumers profitably.
What is supply chain?Supply chain is the group of activities performed by an organization to deliver goods and services to the consumer end.
Thus, one of the principle of supply chain strategy is separate the customers on the basis of service needs of different groups and follow the supply chain to deliver goods and services to the consumers so that they earn profit.
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The building areas where loose fill insulation is most commonly used are
Answer:
Loose-fill insulation can be installed in either enclosed cavities such as walls, or unenclosed spaces such as attics
Explanation:
Answer in one of my classes
Jamal is demonstrating howto build a game in scratch to several of his friends. for the purpose of his demonstration, he wants the backdrop to continuously keep changing. what type of loop will he need to create in order to do this?
a control loop
b master loop
c forever loop
d motion loop
A type of loop which Jamal will need to create in order to make the backdrop to continuously keep changing is: C. forever loop.
What is a forever loop?A forever loop can be defined as a type of loop which comprises a sequence of instructions that are written to run continuously or endlessly, until the simulation is quitted by an end user.
This ultimately implies that, a forever loop should be created by Jamal to make the backdrop to continuously keep changing.
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Answer: C
Explanation:
To any of you who are also taking Game Design, I have respect for you.
What are the rigging devices used to move loads such as steel plates and sheet piles without the use of slings, but grip the load by biting down and using jaw tension to secure the load
The rigging device which are used to move loads without the use of slings, but grip the load by biting down and using jaw tension to secure the load, is lifting clamps.
What are the rigging devices?The rigging devices are used to lift the objects and items when the safety is required. This device is used in the industries.
Types of rigging devices
Rigging hooks-These rigging device is used when the heavy load need to be lift.Lifting clamps-Lifting clamp are used to lift the device with jaw tension to secure the load. In this, there is no use of slings.Pulley and blocks-In the load is lifts with the help of block and pulley arrangement. This is a widely used rigging device.Thus, the rigging device which are used to move loads without the use of slings, but grip the load by biting down and using jaw tension to secure the load, is lifting clamps.
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A three (3) story theater with one side wall, facing the wind, has a height of 30 feet against which directly impact the winds during a hurricane. Each of the floors has a height of 10 feet. The theater also has opposite walls, each 10 feet high. All the mentioned walls have a length of 120 feet. The building is fully enclosed and is It is located in a flat and open terrain. Assume that the sustained speed of the winds it is 145 MPH.
Determine:
a) the pressure exerted by the wind against each of the side walls (lb/ft2)
b) the pressure exerted by the wind against each of the opposite walls (lb/ft2)
You have been installed a chief in your hometown write a letter to your friend in another school telling him at least three things you intend doing to develop the town
thermal energy measured by?
Answer:
Thermal energy is measured using a thermometer denominated in Fahrenheit, Celsius and Kelvin
Use the two images of the houses to answer the following questions. Number your answers. Are the lengths of one house proportional to the lengths of the other house? Why or why not? How can you use scale factors to show that the homes are or are not proportional? What role does surface area take in the building of a house? What advantages exist for a house with a large amount of surface area exposed to the elements? Explain.
No, the lengths of one house is not proportional to the lengths of the other house as they have different length.
What is house?House is known to be a form of dwelling or a residence where people are known to live in.
Scale factors can be used tp show that the homes are not proportional as it will help one tp know which is smaller, and it will tell us the proportional measurements of the house.
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Tech A says that on most front wheels the replaceable sealed bearing is pressed between the hub and the wheel flange and is the more difficult to replace. Tech B says that the unitized wheel hub includes a sealed wheel bearing, a removable wheel hub, and possibly the wheel flange. This type can be unbolted. Who is correct
Both technicians A and B are correct. On most front wheels the replaceable sealed bearing is pressed between the hub and the wheel flange and is the more difficult to replace. Hence it is usually replaced as a unit.
What about the Unitized Wheel Hub?The unitized wheel hub includes a sealed wheel bearing, a removable wheel hub, and possibly the wheel flange that can be unbolted.
Hence both technicians are correct.
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what does the inside of a nuclear reactor look like