Answers
So the answer is A) 8400 J
I was just rewriting my notes on the work lesson I did in class today, so I saw this question at the perfect time!! :)
Hope it helps!! :)
Answer:
According to me Option is the right answer
A. 8,400 J
Related Questions
Plz help me with this question ASAP
Answers
ok i dont know to be honest
Which of the following describes a reference point?
A. The location of an object before its motion begins
B. The center point of a grid
C. The point at which the direction of motion changes
D. The position of an object after its motion has stopped
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Imagine you are looking out a car window and you see a tree. A few seconds later you do not see the tree where it was. You have used the tree as a reference point to know that the car is moving.
Classify each substance as either a conductor or insulator.
A sample of mercury:
✔ conductor
A piece of glass:
✔ insulator
A rubber hose:
✔ insulator
A negatively ionized lithium paste:
✔ conductor
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The correct classification of each substance is as follows:
A sample of mercury: conductorA piece of glass: insulatorA rubber hose: insulatorA negatively ionized lithium paste: conductorWhat are conductors and insulators?A conductor is a substance that can transmit electricity, heat, light or sound while an insulator is a substance that does not transmit heat, sound or electricity.
Conductors are usually metals while insulators are usually non-metals. Examples of conductors include;
IronAluminumCopperExamples of insulators include;
GlassPaperWoodSilkTherefore, the correct classification of each substance is as follows:
A sample of mercury: conductorA piece of glass: insulatorA rubber hose: insulatorA negatively ionized lithium paste: conductorLearn more about conduction at: https://brainly.com/question/18084972
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Answer:
Explanation:
E2020
Certain specialised devices can be more than 100% efficient. True or false?
Answers
Certain specialized devices can be more than 100% efficient is referred to as a false statement.
What is Efficiency?This is referred to as a way of measuring how much energy can be conserved in a process. On the other hand, energy is the ability to do work and can be lost through various means such as heat.
It is not possible to have an efficiency of 100% because it means that there will be more energy being transferred than what is being supplied which would break the law of conservation of energy and is therefore the reason why false was chosen as the correct choice.
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Answer these questions:
1. How is a mixture different from a compound?
2. How are the atoms in a compound held together?
Classify the following as mixtures, elements, or compounds:
3. H20
4. H4
5. Fe + S
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Answer:
1.A compound is when two substances are put together and there is a reaction creating a new substance Ex. H20. A mixture is when two substances are put together, there is no reaction and they can be separated easier than compounds. Ex. salad dressing.
2.Atomic bonds
3.Compound
4.Element
5.Mixture
Explanation:
A cinder block is sitting on a platform 10 m high. It has a mass of 25 Kg. What is the potential energy
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Answer:
2450J
Explanation:
PE = mgh
PE = (25)(9.8)(10)
What is the momentum of a 750 kg car traveling at a velocity of 25 m/s north?
Answers
Answer:
18750 kg-m/s
Explanation:
Momentum = mass x velocity
Answer:
18750 kg-m/s
Explanation: Momentum = mass x velocity 750x25 = 18750 kg-m/s
Can you brainlist
A(n) ________________________ is a substance that slows down a chemical reaction.
endergonic
exergonic
exothermic
inhibitor
endothermic
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Answer:
inhibitor
Explanation:
Inhibitors slow down chemical reactions. Inhibitors slow down or stop the activity of an enzyme.
which one of the following forces is a contact force force of gravity or force of friction
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When people place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by: A reflection.
B convection.
C conduction.
D radiation.
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How are ultraviolet waves used for communication
Answers
Do you think we might have problems with not enough water to supply our needs (water scarcity) in the
ture? Why or why not? If you answered yes, what might the causes be?
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Answer:
Water scarcity (water stress or water crisis) is the lack of fresh water resources to meet the standard water demand. Humanity is facing a water crisis, due to unequal distribution (exacerbated by climate change) resulting in some very wet and some very dry geographic locations, plus a sharp rise in global freshwater demand in recent decades driven by industry. Water scarcity can also be caused by droughts, lack of rainfall, or pollution. This was listed in 2019 by the World Economic Forum as one of the largest global risks in terms of potential impact over the next decade.[1] It is manifested by partial or no satisfaction of expressed demand, economic competition for water quantity or quality, disputes between users, irreversible depletion of groundwater, and negative impacts on the environment.[2] Two-thirds of the global population (4 billion people) live under conditions of severe water scarcity at least 1 month of the year.[3][4][5][6] Half a billion people in the world face severe water scarcity all year round.[3] Half of the world's largest cities experience water scarcity.[5]
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Please help, is an electric lamp a luminous object?
Answers
The graph shows the amplitude of a passing wave over time in seconds (s) What is the approximate frequency of the wave shown? A. 6 Hz B. 0.2 0.4 Hz
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Answer:
0.2 I took the test
Explanation:
I took the test
The time period of the whole wave cycle is 6 seconds but the time period of one complete wave is about 4 seconds here. The inverse of this time period is the frequency, that is 0.2 Hz.
What is frequency ?Frequency by definition is the number of events per unit time. Frequency of a wave is the number of wave cycles in one second. It is the inverse of the time period.
Frequency is directly related to the energy of the wave. As the frequency increases, energy of the wave also increases. In the given graph the wave cycle is given for a time of 6 seconds.
The time period for one complete wave is 4 second from the graph.
thus, T = 4 s
v = 1/T
= 1/4 = 0.2 s⁻¹ or 0.2 Hz
Therefore, the frequency of the wave shown, is 0.2 Hz.
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Help! y’all get brainliest
Answers
Answer:
True
Explanation:
Dietary fiber contains an indigestible material known as cellulite. This is false statement.
What is Dietary fiber?Plant substances that are not broken down by human digestive enzymes are referred to as dietary fiber.
Only lignin and a few polysaccharides were recognized as meeting this criterion in the late 20th century, but resistant starch and oligosaccharides were listed as dietary fiber components in the early 21st century.
The phrase "all polysaccharides and lignin, which are not digested by the endogenous secretion of the human digestive tract" is commonly used to define dietary fiber.
At the moment, the majority of animal nutritionists either use a physiological definition, which states that "dietary components resistant to breakdown by mammalian enzymes," or a chemical definition, which states that "the sum of non-starch polysaccharides (NSP) and lignin."
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hehe i hate being a single girl....what physical properties dose europium have
Answers
Answer:
Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.
Explanation:
the density is 5.24 grams per cubic centimeter.
After reading a book, Julio looks out of the window and sees clouds in the distance. Which change allows Julio to clearly see the clouds after looking at his book? His corneas become flatter. His lenses change shape. His optic nerves begin sending signals. His vitreous humor becomes denser.
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Answer:
Lens change
Explanation:
by changing the shape of the lens the rays from the clouds will be able to refract correctly in the lens then create the correct upside-down image on the retina.
Hope it helped
PLS mark BRAINLIEST
Answer:
His lenses change shape.
Explanation:
just took the quiz
What is the speed of a rocket that travels 9,000 meters in 12 seconds?
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Speed is equal to distance divided by time
How much work did he do if he traveled 20 meters?
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PLEASE HELPPPPP!!!!! ILL GIVE CROWN
Denver, Colorado is located near the rocky mountains. Which list of controls below would have the strongest influence on the weather in Denver.
A ) Ocean currents, distance from large bodies of water, and altitudes
B ) Altitude, topography, and ocean currents.
C ) Latitude, altitude, and topography
D ) Topography, ocean currents, and latitude.
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Answer:To understand the regional and local climates of Colorado, you must begin with a basic knowledge of Colorado's topography. Colorado lies astride the highest mountains of the Continental Divide. Nearly rectangular, its north and south boundaries are the 41° and 37° N. parallels, and the east and went boundaries are the 102° and 109° W. meridians. It is eighth in size among the 50 states, with an area of over 104,000 square miles. Although known for its mountains, nearly 40 percent of its area is taken up by the eastern high plains.
Of particular importance to the climate are Colorado's interior continental location in the middle latitudes, the high elevation of the entire region, and the mountains and ranges extending north and south approximately through the middle of the State. With an average altitude of about 6,800 feet above sea level, Colorado is the highest contiguous State in the Union. Roughly three-quarters of the Nation's land above 10,000 feet altitude lies within its borders. The State has 59 mountains 14,000 feet or higher, and about 830 mountains between 11,000 and 14,000 feet in elevation.
Explanation:
Answer:
D
Explanation:
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a stone is dropped from the top of a tower 400 m high and at the same time another stone is projected upward vertically from the ground with a velocity of 100 m/s. find where and when the two stones will meet.
Answers
Answer:The stones will be at the same height of 62.59 feets 4.4 seconds later.
Explanation:
1) A pendulum is configured to have a period of 2 seconds.
What is the length of the pendulum? (Use 10 m/s^2 for g)
If you doubled the length of the pendulum, what would its New Period be?
2) In a car collision, a car experiences a force for 1 seconds. The car’s mass is 700 kg and it was moving at 20 m/s before the collision and slowed down to 8 m/s.
What is the force on the car during the collision?
If the collision was with a 650 kg car that was at rest, what was the speed of the 650 kg car after the collision?
Answers
"The" (and any subsequent words) was ignored because we limit queries to 32 words.
Does the earth have mass
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Answer:
yes it does
Explanation:
it's not like Balloon it is a solid so it the earth does have a mass
what is acceleration
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Answer: acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
Explanation:
difference between sold and liquid
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Explanation:
Solids have closely packed particles and vibrate about a fixed position, they also have a fixed volume.
liquid have close particles but which are able to move with a bit of kinetic energy, for this reason they have no fixed volume but take the volume of the container or vessel
What will happen when a charged object touches a neutral object?
Answers
if a charged object touches a neutral object it will be a short circuit.
Answer:
will force atom(electrons) within the escort (conductor) to go (move).
Explanation:
Fossil fuels are burned, transferring their chemical potential energy to heat energy. How are nuclear power stations different?
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Answer:
fossil fuels are natural and limited, nuclear is man made and more toxic
Explanation:
What happens to the arrangement of atoms in matter as it is heated?
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Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance.
Explanation:
How are gamma rays used for communication?
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Answer:
No
Explanation:
Electromagnetic radiation is used for communications and transmission of information. The waves that are used in this way are radio waves, microwaves, infrared radiation and light.
Provide two examples of how health care workers can demonstrate their commitment to quality control through their personal appearance.
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Attitude:
Our job is to serve our customers and provide high quality service with care and courtesy.
Always thank customers for choosing our organization.
Exceed expectations.
Acknowledge a customer’s presence immediately. Smile and introduce yourself at once.
Attitude takes into account three things: our body language, our friendliness and our willingness to connect with our customers.
The body language that goes along with the words that we are speaking greatly influences how we are understood. In fact, experts tell us that how we speak is just as important as what we are saying! Our customers are our reason for being in the healthcare environment; our attitude should always be one of concern, respect and genuine caring.
As a customer yourself, do you remember those places of business where the staff was friendly and went out of its way to acknowledge you? Of course you do, since this was an environment where you felt welcomed. We exhibit friendliness by smiling warmly, introducing ourselves immediately, and never, ever ignoring someone. All our customers are equally deserving of attention.
Finally, we show the right attitude by meeting the needs of our customers or finding someone who can. We go out of our way to be helpful; for example, we don’t point the way – we accompany the customer to where they need to go. In addition, we always thank them for choosing us to provide their healthcare experience.
An attitude of service excellence is further exhibited by showing interest when a customer speaks to us. Each one, without exception, should be treated as if he or she is the most important person in our facility; and rudeness is never acceptable. We are attentive to the customer’s immediate need, or gladly take the individual to someone better equipped to provide the service. We always apologize for problems and inconveniences, and enthusiastically carry out service recovery.
Lastly, we recognize that our customers have a sense of urgency and show them that we value their time. Customers are not an interruption of our work; they are our focal point, and caring for them with an attitude that shows we value them should be our daily goal.
Appearance:
Be clean and professional.
Follow dress code policies and wear your identification badge correctly at all times.
Pick up litter and dispose of it properly.
Clean up spills and return equipment to its proper place.
How long does it take to make a first impression on a customer? Just seven seconds, according to popular research. How our customers perceive us in that brief time is very important because it sets the stage for their entire healthcare experience. A first impression is sometimes referred to a “moment of truth” because customers believe that what they are hearing, seeing or feeling is reality – that is, the truth of the situation. No matter that their first impression is merely a snapshot of less than one moment in time. It is perceived as genuine: who we are, the quality of service that we deliver, or our physical environment of care. Needless to say, making that first impression a good one is crucial.
Moments of truth are directly impacted by the appearance of staff as well as that of the workplace, both of which are a direct representation of our organization. When we dress appropriately for the job and wear our name badges so that they are easily readable, we project professionalism to our customers. We not only create a good first impression, but we also reinforce our culture of quality through attention to personal appearance. The same principle applies to our healthcare setting. When we take pains to keep our workspace uncluttered and to pick up trash in hallways and public areas, we are sending a positive message to those who enter the doors of our facility for the first time. We should always take pride in how we present ourselves and in the facility itself. Doing so conveys respect for customers and their expectations.