Answer:
confusing, but yes
Explanation:
your shirt is over you pants I believe.
Add (6x^2-2x) + (5x-7)
Answer:
6x²+3x-7
Explanation:
Simpify the equation, then u get the ans.
2. It is a measuring instrument used to record the amount of
electrical consumption.
A. clamp meter B. micrometer
B.micrometer
C. steel rule
D. electric meter
Answer:
The correct option is;
D. Electric meter
Explanation:
An electric meter is a metering device that is used for the measurement of the electric power consumption of an electrical powered tools, a living space or a building
Electric meter readings are used by electric utility company to sell electric power to consumers at a given rate such that it allows the electric utility company to receive payment for the total power supplied, and for the consumer to regulate the amount of power consumed
The electric meters are usually calibrated in kilowatt hour (kWh) and prepaid meter displays the amount of units of power bought, while post paid meters are usually read once each billing period which is usually one month.
Which of these is a unit of heat?
A.
joule
B.
watt
C.
kelvin
D.
joule/kelvin
E.
mole
Answer:
D
Explanation:
Both the joule and the kelvin represent heat. Kelvin is a unit of measurement for temperature and joule is more heat energy.
Answer:
Joules
Explanation:
It's heat
10) A roller coaster has a circular loop of radius 5.0 m. You go around at the minimum speed.
How fast will you be moving at the bottom?
What is your acceleration? (in m/s2, in g’s)
How does this feel? Where else have you felt this effect?
Draw a Force Diagram at the bottom.
This is dangerous. What should the radius be at the bottom, so that you only feel 2 g’s?
.
Explain why these loops have the shape that they do.
Answer:
1) The speed of the roller coaster at the bottom is approximately 15.65 m/s
2) The acceleration of the roller coaster at the bottom is 6·g's
3) The high acceleration is 6 times the force of the weight of the passengers
The high acceleration can cause gravity induced loss of consciousness
4) Please find attached a force diagram of the forces at the bottom of the roller coaster created with Microsoft Visio
5) For the acceleration at the bottom to be 2·g's the radius of the rollercoaster at the bottom should be 25 meters
5) The radius at the bottom of roller coasters are increased to reduce the normal force felt by the passengers as they pass the bottom of a circular roller coaster
Explanation:
1) The given parameters are;
The radius of the roller coaster, r = 5.0 m
The speed of the roller coaster = Minimum = 0 m/s
The shape of the roller coaster's path = Circular loop
Therefore, the maximum height of the roller coaster, h = The diameter of the of a circular path of the roller coaster, d = 2 × r = 2 × 5.0 m = 10.0 m
∴ h = 10.0 m
The minimum speed is f=given by the following equation;
[tex]F_N = \dfrac{m \cdot v^2}{R} - m \cdot g = 0 \ (At \ the \ top \ of \ the \ roller \ coaster's \ path)[/tex]
Therefore, we have;
[tex]\dfrac{m \cdot v^2}{R} = m \cdot g[/tex]
From which we have;
v = √(R × g)
Where;
R = The radius of the path of the roller coaster = 5.0 m
g = The acceleration due to gravity = 9.8 m/s² = constant
By plugging in the values of the variable, 'R', and the constant, 'g', we get;
v = √(5.0 m × 9.8 m/s²) = 7 m/s
The minimum speed of the roller coaster, v = 7 m/s
The speed of the roller coaster at the bottom is given by the conservation of energy formula as follows;
The energy at the top of the roller coaster = The energy at the bottom of the roller coaster
∴ The total mechanical energy of the roller coaster, M.E., is constant and at the top, [tex]M.E._{top}[/tex], is given as follows;
[tex]M.E._{top}[/tex] = 1/2·m·v₁² + m·g·h₁
At the bottom, the total mechanical energy is given as follows;
[tex]M.E._{bottom}[/tex] = 1/2·m·v₂² + m·g·h₂
Where;
v₁ = The velocity of the roller coaster at the top = 7 m/s
h₁ = The height of the roller coaster at the top = 10 m
v₂ = The speed of the roller coaster at the bottom
h₂ = The height of the roller coaster at the bottom = 0 m
g = The acceleration due to gravity = 9.8 m/s² = Constant
By plugging in the values, we get;
M.E. = [tex]M.E._{top}[/tex] = [tex]M.E._{bottom}[/tex]
∴ 1/2·m·v₁² + m·g·h₁ = 1/2·m·v₂² + m·g·h₂
1/2 × (7 m/s)² + 9.8 m/s² × 10.0 m = 1/2 × v₂² + 9.8 m/s² × 0 m
122.5 m²/s² = 1/2 × v₂²
∴ v₂² = 2 × 122.5 m²/s² = 245 m²/s²
v₂ = √(245 m²/s²) = 7·√5 m/s ≈ 15.65 m/s
The speed of the roller coaster at the bottom, v₂ ≈ 15.65 m/s
2) The normal force on the car at the bottom of the roller coaster is given as follows;
[tex]F_N = \dfrac{m \cdot v_2^2}{R} + m \cdot g = m \times \left(\dfrac{ v_2^2}{R} + g \right )[/tex]
Force, F = Mass, m × Acceleration, a
∴ F = m×a
Therefore, the acceleration at the bottom, 'a' by comparison of the general equation for force, 'F', and the normal force, [tex]F_N[/tex], is given as follows;
[tex]a = \left(\dfrac{ v_2^2}{R} + g \right )[/tex]
Plugging in the values for 'v₂²', 'R', ang 'g', gives;
[tex]a = \left(\dfrac{ v_2^2}{R} + g \right ) = \left(\dfrac{ 245}{5} + 9.8 \right ) = \left(49+ 9.8 \right ) = (5 + 1) \times 9.8 = 6 \times 9.8 = 6 \times g[/tex]
a = 6·g = 58.8 m/s²
3) The high acceleration will lead to a very high normal force (equal to 6 times each of their weight) experienced by the passengers with a force
The high acceleration is dangerous and can lead to gravity induced loss of consciousness since it is more than 3·g's
4) Please find attached the force diagram at the bottom of the roller coaster created with Microsoft Visio
5) For the acceleration at the bottom to be 2·g's, we have;
[tex]a = \left(\dfrac{ v_2^2}{R} + g \right )[/tex]
At a = 2·g, we have;
[tex]2 \cdot g = \left(\dfrac{ v_2^2}{R} + g \right )[/tex]
[tex]\therefore 2 \cdot g - g = g = \dfrac{ v_2^2}{R}[/tex]
[tex]R = \dfrac{ v_2^2}{g} = \dfrac{245}{9.8} = 25[/tex]
R = 25 m
The radius at the bottom of the roller coaster should be 25 meters so that only 2·g's is felt
5) The shape of the roller coaster has an increases the radius at the bottom so as to reduce the acceleration of the car
Which option explains why Tyler is impressed in the following scenario?
Tyler's dishwasher recently stopped working. As he was browsing some of the newer models in the store, he was thrilled with what they offered.
The newer dishwasher models were much less expensive due to recent changes in sustainability.
The efficiency rating of the dishwasher was significantly improved, meaning it would save him money and be more eco-friendly.
Engineers were able to design dishwasher models with superficial changes, making them look more attractive.
Due to newly developed products, there was a much wider variety of energy-efficient dishwashers available.
Answer:
Its B). The efficiency rating of the dishwasher was significantly improved, meaning it would save him money and be more eco-friendly.
Explanation:
On EDG
Answer:
It's B) i just did it in edg
Explanation:
PLEASE HELP ME!!!!!! 100 POINTS FOR HELPFUL ANSWERS + BRAINLIEST!!!!!
So I do the dishes daily for my chores, and no one in my household rinses their dishes or even scrapes the food into the trash, so it is inevitable that some food will end up down the drain.
In my case since no one else does anything to prevent food from clogging the sink, I am the one blamed for when it gets clogged up. Well my parents got fed up with fixing it so as punishment my parents sent me outside and are making me write an essay on:
How sink drains can get clogged up and meathods to fix them
(this has to be completed before I come back inside).
NOTE: PLEASE DO NOT COPY AND PASTE MY PARENTS WILL CHECK FOR PLAGARISM!!! (ALSO ITS GETTING COLD OUT HERE SO PLEASE HELP!!)
ALSO: PLEASE if you do not have an answer do not answer the question, it takes away the ability for others to help me! if you want to say something put it in the comments below please. ∨
Answer:
well you could get some green goblin it disolves all the c rap in sink
Explanation:
Answer:
I'm sorry this is happening to you I had this happen to me before but, in another scenario. So I will try my best to help you.
Explanation:
You can start by apologizing even tho its not your fault. Then you can go into detail step by step on how u will make sure this wont happen again. If needed you can search up different ways on how to clean a drain. You can use drain clean and if u have one of tho disposable things this might help. You can then ask or tell them very respectfully "It would help me even more I you guys can throw your food in the sink before putting it into the sink. Also, you could do it yourself If necessary, and throw away the food yourself from the sink. Both me and my sister have to do this or we will get yelled out so I completely understand.
Is a desk/table a solid, frame, shell or combination
which of the following best describes the mechanical energy of an object?
In other words, an object possesses mechanical energy when it has the ability to do work due to its position or motion. Mechanical energy can take the form of either kinetic energy, which is energy due to an object's motion, or potential energy, which is stored energy due to an object's position.
Some examples of mechanical energy are:
Hydro power plantCyclingWrecking balls, etcWhat is Mechanical Energy?This refers to the type of energy that an object or mass possesses based on its motion and can either be potential or kinetic energy.
Therefore, mechanical energy can be represented mathematically as: [tex]E_{mechanical}[/tex] = U + K
Where U= potential energy
K= kinetic energy
Read more about mechanical energy here:
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a torque of 24 ft pounds is the result when a force of ______ pounds is applied to a wrench that is 18 inches long.
Answer:
16
Explanation:
The product of feet and pounds is the torque. 18 inches is 1.5 feet.
(1.5 ft)(x lbs) = 24 ft·lbs
x lbs = (24 ft·lbs)/(1.5 ft) = 16 lbs
The force will be 16 pounds applied to an 18-inch wrench to obtain 24 ft·lbs.
Answer:
16
Explanation:
Which of the following is NOT an example of a direct cost of workplace injuries?
Medical expenses
Workers’ compensation payments
Cost for legal services
Lost productivity
Answer:
Lost productivity
Which of the following sentences are written correctly verbs
Question # 7
Long Text (essay)
In paragraph of 125 words, explain at least three ways that engineers explore possible solutions in their projects
Answer:
To do this, engineers often use a technique called "brainstorming." Brainstorming is a team creativity activity that helps you generate a large number of potential solutions to a problem or challenge.
Engineers use the engineering design process when brainstorming solutions to real-life problems; they develop these solutions by testing and redesigning prototypes that work within given constraints.
Engineers will often use reverse-engineering to solve problems. For example, by taking things apart to determine an issue, finding a solution and then putting the object back together again. Engineers know how things work, and so they constantly analyse things and discover how they work.
Safeguarding personal data and personal wealth from cyberattacks. ...
Addressing climate change through engineering innovation. ...
Feeding the growing world population through cutting-edge bio-engineering and agricultural innovations. ...
Improving health and well-being through life sciences, nanotechnology, and bio engineering.
MARK ME AS BRAINLISTAnswer:
1) Prototyping is the process of experimental testing of samples of design, or model of a product with the possibility of the inclusion of control of parameters in order to determine the workability of a solution.
2) Simulation is the process of creating an imitation of a situation, operation or process which can be used to determine if a particular solution will be able to work as required in the simulated environment of a problem.
3) Calculations are used to find preliminary results of particular situations, their cause and effects based on scientific laws, theories and hypothesis such that the factor of the problem is equated with the available ideas to find the best possible solution.
Explanation:
⚠️I MARK BRAINLIST I AM BRING TIMED PIC INCLUDED⚠️Match the stage of the product development life cycle to the product that best represents it.
building complex systems
car engines employed for more than one model
reusing technology
sophisticated jet airliners
pushing a technology to market
the latest iPhone version
Describe how you would set up a home network with modem internet sharing.
Answer: The term wireless describe telecommunications in which electromagnetic waves carry a signal over a network.
The operation of wireless devices in a home or office that provide reliability for businesses computer user is wireless LAN (local area networks). in this a wireless LAN adapter is fitted in the personal computers.
A gear train has a ratio of 40/24 and the driving gear is turning 100 RPM.
What is the speed of the driven gear in RPM?
Answer:
S2 = 60 RPM.
Explanation:
Given the following data;
Gear ratio = 40/24 (T2 = 40 and T1 = 24).
Speed of driving gear = 100 RPM
To find the speed of the driven gear;
Mathematically, gear ratio in terms of speed (RPM) is given by this formula;
[tex] S_{1} * T_{1} = S_{2} * T_{2} [/tex]
Where;
S1 represents the speed of the driver gear.S2 represents the speed of the driven gear.T1 represents the number of teeth of the driver gear.T2 represents the number of teeth of the driven gear.Substituting into the equation, we have;
[tex] 100 * 24 = S_{2} * 40[/tex]
[tex] 2400 = 40S_{2} [/tex]
[tex] S2 = \frac {2400}{40} [/tex]
S2 = 60 RPM.
Therefore, the speed of the driven gear is 60 revolutions per minute.
DEFINE NEUTRALIZATION REATION?
Answer:
I would go with when acid and a base react quantitatively with each other. as my answer for that
What are the transfer of energy for the 6 simple machine? Ex: inclined plane is gravitational potential energy to mechanical energy. What are the rest?
Answer:
I. Inclined plane: GPE to KE.
II. Screw: KE to GPE.
III. Wheel and axle: GPE to KE.
IV. Lever: GPE to KE.
V. Wedge: GPE to KE.
VI. Pulley: GPE to KE.
Explanation:
A simple machine can be defined as a type of machine with no moving parts but can be used to perform work.
Basically, a simple machine allows for the transformation of energy into work. The six simple machines are;
I. Inclined plane: gravitational potential energy to mechanical energy (kinetic energy). It is set at an angle and then used to lift an object.
II. Screw: kinetic energy to potential energy. It is held in position and then used to tighten two or more objects together.
III. Wheel and axle: gravitational potential energy to mechanical energy (kinetic energy). It comprises of two circular objects which aids in the motion of an object such as a car.
IV. Lever: gravitational potential energy to mechanical energy (kinetic energy). It comprises of a pivoted bar at a fixed point (fulcrum) that allows it to be used for lifting heavy objects.
V. Wedge: gravitational potential energy to mechanical energy (kinetic energy). It can be used to split objects into halves.
VI. Pulley: gravitational potential energy to mechanical energy (kinetic energy). It is made up of a wheel and rope which allows force to be multiplied such as in a drawing well.
Energy can be defined as the ability (capacity) to do work. The two (2) main types of energy are;
a. Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.
b. Kinetic energy (KE): it is an energy possessed by an object or body due to its motion.
What is the difference between Material Safety Data Sheets and Safety Data Sheets?
Safety Data Sheets do not include protective measures
Safety Data Sheets do not include health effects
Safety Data Sheets must have 16 user-friendly sections
There are no differences
Answer:
MSDS is Material Safety Data Sheets, whereas SDS just Safety Data Sheets
Explanation:
A: i do not know what answer is
Why are the main cables of the Golden Gate Bridge made of numerous smaller cables?
Answer:
The main cables of the Golden Gate Bridge are made of numerous smaller cables because by combining several thousand in number of smaller cables, each having a diameter which is approximately the diameter of a pencil, into the required cable diameter dimensions, the flexibility, strength, resistance to cracking, rotation resistance, crushing resistance and fatigue resistance of the main cables are increased, and failure of a few strands in a multi-stranded cable is more likely to be detected before catastrophic failure takes place than in a single cable
The properties of strength and flexibility that the cable provides are required so that the bridge can better cushion the seismic turbulence of the water and strong wind energy at the bay of San Francisco, the location of the bridge
Explanation:
The ________________ attraction between the Earth and the moon is ______________ on the side of the Earth that happens to be ____________ the moon, simply because it is ________. This attraction causes the water on this “_________” of Earth to be pulled ___________ the moon.
Answer:
Gravitational; strongest; facing; closer; near side; toward.
Explanation:
The gravitational attraction between the Earth and the moon is strongest on the side of the Earth that happens to be facing the moon, simply because it is closer. This attraction causes the water on this “near side” of Earth to be pulled toward the moon. These forces of attraction and inertia tends to keep the water in place and consequently, leads to a bulge of water on the near side with respect to the moon.
Also, you should note that what is responsible for the moon being in orbit around the Earth is the gravitational force of attraction between the two planetary bodies (Earth and Moon).
can you help me with the engineering
Answer:
maybe depends on what it is about lol
Where does Henrietta think William might be?
the park
the cemetery
his favorite restaurant
Answer:
The cemetery
Explanation:
Answer:
B.) CEMETERY
Explanation:
Have a nice day!
Technician A says a sway bar is used to control body lean when cornering.
Technician B says that adding additional leafs to a Leaf Spring increases its
capacity. Which is correct?
Technician B only
Answer:
technician B
Explanation:
because adding leaves increasing capacity
bruuh its sum werid people on brainly
Answer:
what happend??
Explanation:
If an electric dryer has a nameplate rating of 5.6kva what would you use for the service calculation?
If an electric dryer has a nameplate rating of 5.6kva, Kilovolt-amperes (kVA) is often used for the service calculation.
What is a service calculation?A service calculation is known to be the NEC given way or procedure that is used for sizing service conductors, service equipment, and others so that they can be able to meet the needed electrical demands of a home and office
Note that for a person to calculate dryer load, the use of Kilovolt-amperes (kVA) is often considered as it is equivalent to kilowatts (kW).
Hence, If an electric dryer has a nameplate rating of 5.6kva, Kilovolt-amperes (kVA) is often used for the service calculation.
Learn more about electric dryer from
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Which option identifies what process should be used as a model for design in the following scenario?
John is developing a handheld camera, unlike any others that have been developed before. Even though he understands what the final product will be, it still requires further development and modification.
A. engineering design process
B. reverse engineering process
C. structural process
D. brainstorming process
Answer:
A. engineering design process
Explanation:
We are told that John is trying to develop a handheld camera. And that it is unlike any other one that has been developed before.
Now, though he understands what the final product will look like, the camera still required further development and modification. This is simply an engineering design process because it involves finding a need and trying to solve it since he already understands what the final product will be.
Which activity is unethical when using a public Internet access terminal? NULL 2
a.
Participate in public online surveys
b.
Offer movie links to friends in other countries
C.
Upload huge video file onto video sharing website
d.
Share personal photos on social networking site
Answer: C
Explanation:
Uploading a huge file on the internet will slow it down alot
How much salt will one teaspoon of water dissolve? Complete this experiment to find out!
Materials:
salt
a small glass jar with a lid
water
measuring spoons
Follow these steps:
Carefully measure out 3 Tablespoons of cold water into the jar.
Now measure out 1/8 teaspoon of salt and put it into the jar with the water. Put the lid on the container and shake it. Keep shaking until the salt is completely dissolved. To determine whether it has completely dissolved, hold the container up to the light and look carefully at the bottom, or open the lid and look into it. If you see little grains of salt there, it is not completely dissolved, so keep shaking until it looks the same each time you look.
If the salt does not dissolve completely after five minutes of vigorous shaking, write this in your notebook and go on to step 4. If the salt dissolves completely, add another 1/8 teaspoon of salt and repeat the process. Repeat over and over, keeping track of how many 1/8 teaspoons you add. Stop when you can’t get the salt to dissolve no matter how hard or long you shake the container.
Record how much salt you were able to dissolve in the 3 Tablespoons of water in the solubility data table.
Repeat steps 1-4, but this time using very warm or hot water. Before you do it, run the jar under hot water to warm it up so the water doesn’t cool off right away. Be sure to use the exact same amounts of water and salt as you did the first time. The only variable should be the temperature of the water.
Record your results, and then compare with your previous results.
Answer the following questions:
Were there any differences in the amount of salt that dissolved in the warm water versus the cold water?
Write a conclusion based on your results, using the terms “temperature” and “solubility.”
Based on your results, answer this question: If the oceans of the earth got warmer from global warming, would the water of the oceans become more or less salty? What do you think the effect of this change in the ocean salinity (saltiness) would be on the plants and animals that live in the ocean?
Once you have completed the activity and answered all the questions, turn your assignment in here. To see how this assignment will be graded, click tHow much salt will one teaspoon of water dissolve?
Answer:it took 4 1/8th teaspoons
Explanation:
Answer:
The answer is on the document (not a link and won't break your device, promise).
Explanation:
The Marion County School District is planning to build a new elementary school near a commercial district. Which of the following types of construction companies would be best for the job?
A.Commercial
B.Institutional
C.Residential
D.Industrial
Answer:
B or C
Explanation:
Commercial has to be for things like political and industrial is for making/providing things
I need help... What is Torque?
Answer:
a twisting force that tends to cause rotation
Explanation:
Answer: a force that causes something to rotate
Explanation: