Answer:
The answer is A (25 miles per hour).
Answer:
A. 25 miles
Explanation:
It is that low because people need to have enough time to stop a sudden stop light or pedestrian. Often times people hit people because they are wearing dark clothing or someone stepped out into a unprotected intersection.
What is kinetic energy?
Answer:
kinetic energy means energy which a body possesses by virtue of being in motion
Answer:
Kinetic Energy is a type of energy which a body possesses by virtue of being in motion.
OR
It's the energy of mass in motion.
Hope it helps!!Please mark me as the brainliest!!!Thanks!!!!
Your friend wears earbuds while driving to school each day. Is this safe? Is it legal? Explain why or why not.
Answer:
Its not safe but it isn't illegal. Its not safe because if their volume was up they wouldn't be able to hear if someone is honking at them or listen to emergency vehicles. They would be oblivious to what's going on around them.
Explanation:
im an amazing guy <3
First Aid is used for all of the stated reason except:
O Protect Life
O Prevent injury
O Promote recovery
O Preserve life
prevent injury
Explanation:
one is already injured Soo there's no protection there
You should continuously work to enhance your skills and knowledge .
Answer:
Improve Your Writing
You may need to improve your ability to express yourself in writing.
To some degree, most organisations rely on the accurate transfer of information and that calls for the accurate use of language. When speaking, most people make multiple errors of grammar and vocabulary, and nobody seems to mind. But when you are doing business at work, then the business agreement is usually in the form of a written document; and that document has to be worded properly.
How would you rate your ability to express yourself properly in writing? Are you a good writer or do you lack knowledge of grammar, punctuation, logic and rhetoric?
If you are not as good at writing as you need to be, then study grammar, study punctuation, logic and rhetoric.
Start by buying a copy of a book called 'Rex Barks' by Phyllis Davenport.
This book is the gateway to grammar - and Phyllis is phenomenal.
Explanation:
how many types of engineering specialist are there?
There are now six major branches of engineering: Mechanical, Chemical, Civil, Electrical, Management, and Geotechnical, and literally hundreds of different subcategories of engineering under each branch.
There are about 40 types of engineering specialists
2. What is the charge, expressed in micro coulombs on two equally and similarly charges spheres placed in air with their centres 30 cm apart repelling each other with a force of 120 mgm.
Answer:
q = 0.1086 micro Coulombs
Explanation:
By Coulombs law, we have;
[tex]F =k \times \dfrac{ q_1 \times q_2}{r^2}[/tex]
Where;
F = The electric force = 120 mgm
q₁ and q₂ = Charge
r = The separating distance = 30 cm = 0.3 m
k = 8.9876×10⁹ kg·m³/(s²·C²)
Where, q₁ and q₂, we have;
[tex]F =k \times \dfrac{ q^2}{r^2}[/tex]
Whereby the force is the force of 120 milligram mass, we have;
0.00012 × 9.81 = 000011772 N
[tex]q = \sqrt{ \dfrac{ F\times r^2}{k}}[/tex]
Substituting the values, we have;
[tex]q = \sqrt{ \dfrac{ 000011772 \times (0.3)^2}{8.9876 \times 10^9}} = 1.086 \times 10 ^{-7} \ Coulombs[/tex]
q = 0.1086 micro Coulombs.
HELPPPP. How many engineers are there in u.s?
There were about 1.6 million engineers employed in the United States in May 2015. Mechanical, civil, and industrial engineers together made up half of all employed engineers.
Answer:
There were about 1.6 million engineers employed in the United States in May 2015. Mechanical, civil, and industrial engineers together made up half of all employed engineers. The three smallest engineering occupations—agricultural engineers, marine engineers and naval architects, and mining and geological engineers—together made up about 1 percent of total engineer employment......
3. An underground copper pipe is used to transport oil under a factory. It is very important that this pipe does not oxidize, so engineers use impressed current cathodic protection. a. Would zinc be an appropriate metal to use for cathodic protection? Why or why not? (4 points) b. Engineers attach a sacrificial anode to the copper pipe. To use impressed current cathodic protection, they must attach a battery between the cathode and anode. Which material should the positive side of the battery be attached to? Explain how you know. (4 points)
Answer:
a) Copper corrosion is prevented by an external current source that provides a condition around the copper that halts the rust through current cathodic protection
Due to the location of the pipeline, an material such as graphite, titanium, or niobium can be used which lasts longer that zinc can be used for longevity of the protection
b) The positive side of the output DC terminals are attached to the anodes such as graphite, while the negative terminals are connected to the copper pipe to be protected
Explanation:
Making the protected metal the cathode will make the metal be the source of electrons into the reaction taking place such that the release of the positive metal ions that results in disintegration takes place at the anode and as such the protected metal made the cathode, to which the negative terminal of the battery is attached is protected.
Engineers are looking for a new material to build the body of an airplane. They agree that the material must be lightweight, but also strong and long-lasting. Above all, the material must maximize the safety of the passengers. Several engineers have developed some initial plans. Which stage of technological design is described in this passage
Answer:
Design a solution
Explanation:
In the design a solution stage, solutions and ideas to solve the problem or design of the product are generated and details of the problem solution or product design are developed
The generated ideas and details are put together to get a workable solution
Stages of technological design, includes
1) Problem identification
2) Design a solution or designing of a product
3) Design Implementation
4) Solution or product evaluation
Engineers mainly concentrate on ____.
a. creating new ideas (such as designing hydrogen-powered automobiles)
b. modifying existing ideas (such as designing a fast computer)
c. creating ideas and then implementing them
d. both a and b
Answer:
d creating new ideas and modifying
You are driving a vehicle that has an automatic transmission. When you park on a hill, you
should
A: Set the parking brake first, before you shift the transmission into Park.
B: Shift the transmission into Park, and leave the parking brake off.
C: Set the parking brake, and shift the transmission into Neutral.
Answer:
The answer is A. Set the parking brake first, before you shift the transmission into Park.
An automatic gearbox is a multi-speed transmission system. The correct option is A.
What is the automatic transmission?An automatic gearbox is a multi-speed transmission system that is used in internal combustion engine-powered motor vehicles that do not require any driver input to change forward gears. Thus, making the process of shifting gears automated.
The correct way to park an automatic transmission vehicle is to set the parking brake first before you shift the transmission into Park. Therefore, the correct option is A.
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When you arrive at an intersection with a stop sign in your direction, if there is no marked stop
line, you must
A: Stop within 10 feet of the intersecting roadway, on top of the pedestrian crosswalk if there is one.
B: Wait for pedestrians in the crosswalk to cross, then stop on the pedestrian crosswalk.
C: Stop before entering the pedestrian crosswalk.
Answer:
The answer is B. Wait for the pedestrians in the crosswalk to cross, then stop on the pedestrian crosswalk.
Based on the concept of road usage, and the available options, when you arrive at an intersection with a stop sign in your direction, if there is no marked stop line, you must Stop before entering the pedestrian crosswalk.
What is Pedestrian Crosswalk?Pedestrian Crosswalk is a term that is used to describe a place designated for pedestrians to cross a road, street, or avenue.
Generally, the term "pedestrian crosswalk" is also used in the Vienna and Geneva Conventions, both of which pertain to road signs and road traffic.
In this case, it is expected that when you arrive at an intersection with a stop sign in your direction, if there is no marked stop line, you must stop at the edge of the intersection just before entering the crosswalk or intersection.
It's important to come to a complete stop to ensure that it is safe to proceed before proceeding through the intersection. Be careful and aware of your surroundings to ensure a safe and steady flow of traffic.
Hence, in this case, it is concluded that the correct answer is option C. Stop before entering the pedestrian crosswalk.
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__is a mechanical force generated by a solid object moving through a fluid.
Answer:
Drag
Explanation:
Which resource can tell you what types of insulation you can use in a given installation? a. NESC b. NFPA c. NIOSH d. NEC
Answer:
D. NESC
Explanation:
first of all what's the meaning of NESC:
NESC: National Electrical Safety Code
The National Electrical Safety Code is a United States standard of the safe operation, maintenance, and installation of communication ,
utility system and electric power.
Which includes the following.
1.) power and communication underground lines
2.)power and communication overhead lines,
3.) Power substations
NESC are the ones to tell us the type of installation to use for a particular operation and particular location.
For both safety purposes and to reduce life hazard and community hazard due to elect item.
Explain orthographic
and multi-view
projection
Answer:
Orthographic projection is a projection method to present three-dimensional shapes in two-dimensional format in which the projection lines are drawn to be orthogonal to the plane of projection, such that each view of the three-dimensional object is translated to a view of the orthographic projection and orthogonal to the view
A multiview projection is the representation of a three-dimensional projection by two or more two-dimensional views
Explanation:
if you experience brake failure...
Answer:
If your brakes go out, you want to do three things.
Explanation:
First, downshift to a lower gear. Second, if you have regular brakes pump the brake pedal fast and hard to build up brake fluid pressure. Gradually apply the parking brake and be prepared for the car to skid. hope this helps you :)
Which element refers to musically depicting the emotion in the words of a musical piece?
A intellectual movement of humanism
B. word painting
C. balancing the usage of rhythm and tone color
D. combining lyrics and rhythm in a motet
Answer:
The correct option is;
B. Word painting
Explanation:
Word painting is the musical art of composition of music literally describing by reflection the action of the lyrics of the music. Word painting is also referred to as text painting or tone painting. Word painting is a technique commonly used in Renaissance music such as madrigals and the technique of word painting can also be found in church music such as in Hendel's Messiah
An example of word painting is where ascending set of musical notes will be paired with lyrics about increasing.
Answer: B. Word painting
Explanation:
what is the difference between science and engineering?
Answer:
The following table is among some of the discrepancies between some of the different topics.
Explanation:
Science seems to be the application of structured organized facts which could be interpreted scientifically because when engineering would be a branch of science which deals with either the profession of acquiring including using technological, computational, economical and severity of adverse effects to design and manufacture equipment and devices that seem to be beneficial to mankind.Science would be a set of information and established frameworks whereas the use of these models and information to construct structures as well as mechanisms becomes engineering.Which type of engineering design uses an already existing design?
A. top-down design
B. spiral design
C. bottom-up design
D.
incremental design
Answer:
The correct option is;
C. Bottom-up design
Explanation:
The bottom-up design is meant for system redesign or re-engineering of an existing design involving component upgrading or legacy systems replacement
The bottom-up design approach is also meant for applications where there is a new interface requirement for the original system in order to determine the functionality of the newly combined systems and also where a novel component is incorporated into the existing design.
The bottom-up approach starts with the analysis of the interoperability of the components to the modules and eventually the analysis of the system requirements.
Question 6: Which of the following is NOT true if you are changing into a
turning lane?
You should activate your signals 100 feet beforehand
You should activate your signals when you get into the turn lane
You should activate your signals before you get into the turn lane
You should use your hands to signal if your lights do not work
Answer:
You should activate your signals 100 feet before you turn, becuase of that you should not wait until you are turning to turn on your signals. If you do not have working lights use your hands. So the answer that is inccorect is B.
You should activate your signals when you get into the turn lane is NOT true
Because you are supposed to single beforhand not while you're in the lane.
Im taking my drivers ed too. :)
Tech A says never disconnect sensors before conducting resistance checks. Tech B says automotive test lamps should not be used on digital circuits because they draw too much current and can overload the circuit. Who is correct?
Answer:
12345263636636363663636e6ee66e6e6e63777e
A large piece of ground is developed with lights, streets, and sewers. The subdivider wants to get it ready for building. He does an environmental impact statement and makes a large map which shows where each lot and block is located. Streets, parks, and utility easement are also shown. This is visual representation is called:
Answer:
Subdivision plat map
Explanation:
A subdivision plat map is a map plan of a given scale having the planned lot subdivisions and amenities. Subdivision plat map also show easement boundaries, access routes, streets and alleyways present in or adjacent to the tract of land that is being subdivided into lots
The process of subdivision of a tract land of land requires the approval the counties and the cities in which the land is located.
Two technicians are discussing solder wire repair. Technician A says that electrical tape can be used to cover the joint. Technician B says that heat shrink tubing can be used to cover the joint. Who is correct?
Answer:
8282777727e7e87e7e8e88282883
what is your favorite generation of the mustang?
Answer:
6TH AKA THE 2015-PRESENT
Explanation:
Answer:
I like them all except '74ish all the way up to '93.
6. Driving with parking lights only (in place of headlights) is against the law. A. True B. False
Answer:
B false it is illegal to only have got fog lights on though and bright headlights because it can distract other drivers going last and if the y are distracted then that will cause a collision
Hope this helps :)
Explanation:
If sail boats A and B are approaching each other with the wind on different sides, why is vessel A considered the give-way vessel (vessel that must take early and substantial action to avoid a collision)?
Answer:
The reason is because when the wind approaches each sailboat from a different side, the sailboat that the wind approaches from the port side, which is the left side is the give-way vessel.
Whereby the wind approaches the vessel A from the port (left) side then vessel A is considered the give-way vessel
The give-way vessel is the vessel that will have to take expeditious steps to create access for the other vessels by either changing course, stopping, or moving with reduced speed
Explanation:
What is version control?
Answer:
version control are a category of software tool that help a software team manage changes to source code over time.
If you think a hazard is serious, what is the best way to ensure that OSHA will
conduct a site inspection?
Help
Answer:
The best way to ensure that OSHA will conduct a site inspection is by the submission a signed (by a current employee or employee representative) Formal Written complaints following OSHA guidelines (which can be found in the Council of Safety and Health (COSH) website) which will enable the commencement of process for an on site inspection
As such it is advisable to go through the following procedure before, filing a complaint
1) Talk to your workers union about the hazard
2) If you do not belong to a union, talk to your co-workers
3) Inform your employer who has responsibility for on the job safety
4) Speak or have a meeting with OSHA so as to receive guidance before filing a complaint
Explanation:
If you think a hazard is serious, the best way to ensure that OSHA will conduct a site inspection is to file a complaint.
Hazard simply means a potential source of harm. It should be noted that hazards can have detrimental effect on the health of an individual.
If you think a hazard is serious, the best way to ensure that OSHA will conduct a site inspection is to file a complaint asking OSHA to inspect the workplace. In a situation whereby OSHA finds a serious hazard, it'll be kept confidential.
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The ramp in the railway station has rough surface .why?
Answer:
To increase the friction so we do not slip while walking.
Explanation:
If the surface is smooth then the frictional force between the ramp and the feet becomes less and the chances of slipping are greater.
Steam enters an adiabatic turbine at 8 MPa and 500 C with a mass flow rate of 3 kg/s andleaves at 30 kPa.The isentropic efficiency of the turbine is 0.90. Neglecting the kinetic energy change of the steam, determine (a) the tem-perature at the turbine exit and (b) the power output of theturbine
Answer:
(a) The exit temperature = 69.1°C
(b) The power output = 8.3 MW
Explanation:
(a) The enthalpy of steam at 8 MPa and 500°C is given (from online sources) as h₁ = 3399 kJ/kg
The exit temperature = The saturation temperature at 30 kPa = T₄ = 69.096 + 273.15 = 342.246 K
The exit temperature = 69.1°C
(b) The mass flow rate = 3 kg/s
The isentropic efficiency = 0.9 = (h₁ - h₂)/(h₁ - h₂[tex]_s[/tex])
s₁ = 6.727 kJ/kgK
h₂[tex]_s[/tex] = 289.229+ 2335.32* (6.8235 - 6.727 )/6.8235 = 322.26 kJ/kg
Therefore, h₂ = h₁ - (h₁ - h₂[tex]_s[/tex])*0.9
h₂ = 3399 - (3399 - 322.26 )*0.9 = 629.934 kJ/kg
The power output = [tex]\dot m[/tex](h₁ - h₂) = 3 *(3399 - 629.934) = 8307.2 kJ/s =
8.3 MW.
