which statement describes how adding oil effects the mechanical efficiency of a car's engine?
Answer:
Mechanical efficiency accounts for losses due to engine friction and ancillaries such as the lubricant pump, coolant pump, fuel pump and cooling fan. Engine friction arises whenever there is relative motion between parts. Journal bearings on the crankshaft, connecting rods and camshaft as well as piston rings and piston skirts are important sources
Explanation:
Please help! It has to deal with Newton's 3rd law! 30 points! and if right brainliest!
Answer:
Newton's Third Law
His third law states that for every action (force) in nature there is an equal and opposite reaction
Explanation:
list both types of energy before skydiver jumps out of the plane and as the sky diver is diving.
Answer : This is an example of Kenitic and potential energy
Explanation:
kenitic: the act of moving or motion
potential: not. moving YET
he was not moving when he was on the plane and had potential energy cause he wasn't getting pulled down and kenitic energy was when he was getting pulled down from force of gravity when he was getting pulled to the ground when he was skydiving
A simple motor converts ________energy into________energy.
A) magnetic;electrical
B) electrical:magnetic
C) electrical:mechanical
D) mechanical;electrical:
PLEASE HELP ON QUESTION ASAP !
Hi please help on question.If you get answer correct is be willing to give brainliest,a thanks, five stars and 10pts.
My question:
As an analogy of a circuit with resistance, think of an obstacle race . Which parts of a circuit do the obstacles represent? which part of the circuit do the people respresent?
In an analogy of a circuit with a resistance to an obstacle race, we can consider various elements of the race as representative of different components of the circuit.Obstacles, Track or Route, Participants, Start and Finish Line.
Obstacles: The obstacles in the race represent the resistors in a circuit. Just as resistors impede the flow of current in a circuit, obstacles in the race create hurdles that slow down the participants. The difficulty or magnitude of the obstacles can be equated to the resistance value of the resistors in a circuit.
Track or Route: The race track or route itself can be seen as the conductive path in a circuit. It provides a pathway for the participants to move and complete the race. Similarly, the conductive path in a circuit allows the flow of current from the power source to the load.
Participants: The people participating in the race represent the flow of electrons in a circuit. Just as the participants move through the obstacles in the race, electrons move through the resistors in a circuit. The rate at which participants complete the race can be compared to the current flowing through the circuit.
Start and Finish Line: The start and finish line of the race correspond to the terminals of a circuit. The start line represents the positive terminal, where the participants begin their journey, and the finish line represents the negative terminal, where the race concludes.
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Answer: As an analogy of a circuit with resistance, the obstacles in an obstacle race represent the resistance in a circuit. The parts of the circuit that the obstacles represent are the resistors. The people in the obstacle race represent the current in a circuit. The current is the flow of charged particles (such as electrons) in a circuit. In an obstacle race, the people are moving through the obstacles, just as the charged particles are moving through the resistors in a circuit. The obstacles slow down the people, just as the resistors slow down the flow of charged particles in a circuit.
Explanation:
Helpp
Max and Jimmy continue to jumping on the trampoline. When they jump at the same time, Max makes a wave crest and Jimmy makes a wave trough. What type of wave interaction occurred?
A) reflection
B)refraction
C)destructive interference
True or False? If the ball hits any line when it is NOT on the serve, it is in bounds. Pickle Ball for PE
Answer:
Well according to volleyball rules, if the ball hits the out of bounce line, its considered in.
This is for my tennis Class
What differences did you find between racquest ball and tennis?
Answer:
Tennis: The racket is oval-shaped, broader, longer, and more powerful
Racquest: The stick is a bit flattened at the top, lightweight and shorter
Explanation:
Use the excerpts and your knowledge of social studies to answer the question.
“39. No free man shall be arrested or imprisoned or . . . in any way victimized, neither will we attack him or send anyone to attack him, except by lawful judgment of his peers or by the law of the land.”
—Magna Carta
“That excessive bail ought not be required, nor excessive fines imposed, nor cruel and unusual punishment. inflicted;
“That jurors ought to be duly impanelled [sworn in] . . . and jurors which pass upon men in trials for high treason ought to be freeholders.”
—English Bill of Rights
What did both the Magna Carta and the English Bill of Rights do?
guaranteed all men the right to vote
stated that physical attacks were considered “cruel and unusual punishment”
gave people accused of a crime the right to a trial by jury
declared that only a free man has the right to protest his arrest
Answer:
I think it’s “stated that physical attacks were considered ‘cruel and unusual punishment’” but I’m not 100% sure
hope this helps ^-^
EXPLANATIONS
"Guaranteed all men the right to vote" This doesn't make sense, because the Magna Carta and English Bill of Rights talked nothing about the rights of men to vote.
"Stated that physical attack were considered "cruel and unusual punishment" This isn't correct either, because the English Bill of Rights doesn't say anything about physical attack. It only says cruel and unusual punishment.
"Gave people accused of a crime the right to a trial by jury" This answer is correct, because in the Magna Carta, it says, "except by lawful judgment of his peers or by the law of the land.” In simpler terms, it's basically saying that no man should be arrested, unless the right by the accused person asks for a trial (I believe). The English Bill of Rights
"Declared that only a free man has the right to protest his arrest." This one would've been good, but The English Bill of Rights doesn't talk about that only a free man has the right to protest his arrest. Only the Magna Carta.
At first, I wasn't sure if it was the last one or the third one, so I hope this is right/helpful ;w;
What is an ecosystem? Group of answer choices An ecosystem is all different populations of animals in an area. An ecosystem is a community of plants and animals and their physical surroundings. An ecosystem is a single example of a particular species of plant or animal. An ecosystem is all the organisms of a particular kind of species and their surroundings.
Answer: An ecosystem is a community of plants and animals and their physical surroundings
Explanation: An ecosystem is a geographic area where plants, animals, and other organisms as well as weather and landscape work together to form a bubble of life. Ecosystems contain biotic and abiotic factors both. Biotic factors include plants, animals, and other organism
Answer: An ecosystem is a community of plants and animals and their physical surroundings.
Explanation: Ecosystem plays an essential role for the existence of living organisms in the planet Earth. A balanced ecosystem is attained as a result of various reasons it includes the live ratio of diverse varieties of organisms in a particular ecosystem, necessary physical, biological, and chemical conditions that promotes the living of organisms, and the balanced atmosphere attained as the result of temperature, wind, and humidity.
As all the above mentioned properties are necessary for maintaining a sustainable ecosystem, it is clearly understood that an ecosystem is a community of plants and animals and their physical surroundings.
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
Use the data in the table to explain how you could determine the volume of the block.
To find the volume of the block, subtract the initial water volume from the final water volume, convert the change in water volume to cubic centimeters, and consider it as the volume of the block.
To find the volume of the block using the measurements provided.
1. Calculate the change in water volume:
The initial water volume is given as 62.3 mL, and the final water volume is given as 89.5 mL. To determine the change in water volume, we subtract the initial volume from the final volume: 89.5 mL - 62.3 mL = 27.2 mL. This value represents the increase in water volume caused by placing the block in the graduated cylinder.
2. Convert the change in water volume to cubic centimeters:
Since 1 mL is equivalent to 1 cubic centimeter (cc), we can directly convert the change in water volume from milliliters to cubic centimeters. In this case, the change in water volume is 27.2 mL, which is also equal to 27.2 cc.
3. Determine the volume of the block:
When the block is placed in the graduated cylinder, it displaces some amount of water, resulting in an increase in water volume. By measuring this increase in volume, we can determine the volume of the block itself. In this case, the change in water volume of 27.2 cc represents the volume of the block.
By following these steps, we can find the volume of the block based on the provided measurements.
Therefore, By deducting the initial water volume from the final water volume and converting the difference in water volume to cubic centimeters, the block's volume can be calculated. the volume of the block is 27.2 cc.
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ALSO:
MERRY CHRISTMAS! HAPPY HANUKKAH ALL THAT
The velocity of the vehicle is equal to 406.5 m/s. The velocity in Km/hr is 1463.4 Km/hr.
What is the velocity?Velocity can be demonstrated as a vector measurement of the direction of the object and the rate of motion of an object. The velocity of an object can be described as the change in the body's position w.r.t. time.
Velocity can be expressed as a vector quantity as it consists of magnitude as well as direction. A mathematical formula common and simplest way to find velocity.
v = d / t
Where v is the velocity, d is the distance covered and t is the time taken by the body.
The S.I. unit for velocity can be represented as m/s and can be expressed in terms of miles per hour (mph), and kilometers per hour (kph).
Given, the distance traveled by the vehicle, d = 100 m
The time taken by vehicle = 0.246 sec
The velocity of the vehicle, v = 100/0.246 = 406.5 m/s
We know that 1km = 1000m then 1 m = 10⁻³ Km
1 hour = 60 ×60 = 3600 s
1s = 1/3600 hr
Therefore, velocity, \(\displaystyle v = 406.5 \times \frac{3600}{1000} Km/hr\)
v = 1463.4 Km/hr
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Please select the word from the list that best fits the definition
Gives a pictorial indication of how far and fast an object has moved
a. speed
b. velocity
c. frame of reference
Answer: the answer is C
Explanation:
hope it helps friend :)
What information is used to determine earthquake risk?
Answer:
There are several pieces of information that are used to determine earthquake risk:
Seismic data: This includes information about the frequency, size, and location of earthquakes that have occurred in a particular area. This can help scientists understand the likelihood of future earthquakes and how strong they are likely to be.
Geological data: This includes information about the geology of an area, including the types of rocks and soil present, the structure of the Earth's crust, and the presence of fault lines or other features that may affect the likelihood of earthquakes.
Population data: The number of people living in an area can also be a factor in determining earthquake risk, as a larger population is more likely to be affected by an earthquake than a smaller one.
Building data: Information about the types and condition of buildings in an area can also be used to determine earthquake risk, as buildings that are poorly constructed or not designed to withstand earthquakes are more likely to be damaged or collapse.
Insurance data: Insurance companies may also use data about past earthquakes and their effects to help assess the risk of future earthquakes in an area.
Overall, the risk of earthquakes is determined by a combination of these and other factors, and it can vary significantly from one location to another.
Answer:
In order to determine earthquake risk, information on the density of buildings and people (exposure), the vulnerability of the built environment, and robust earthquake hazard assessments, including the impact of local soil conditions, are needed.
When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure
note: apparently the answer is friction but it doesn't make sense to me so please explain.
The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.
I hope this helps!
whats can shot up faster a small or a big parachute????
i have used it before but i dont know what it means WTH DOES AI MEAN
Answer:
It stands for Artificial Intelligence
Explanation:
The work input = _____.
F i ÷ d i
F o ÷ d o
F o × d o
F i × d i
The work input = Fi × di
How to solve for work input?To solve for work input, you need to know the force acting on an object and the distance it moves in the direction of the force. Work input is defined as the product of force and distance, given by the formula:
Work Input = Force × Distance × cosθ
Where θ is the angle between the force vector and the direction of motion. If the force is applied in the direction of motion, then θ = 0 and cosθ = 1, so the formula simplifies to:
Work Input = Force × Distance
For example, if you are pushing a box with a force of 50 newtons over a distance of 10 meters, the work input would be:
Work Input = 50 N × 10 m × cos(0°) = 500 Joules
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Answer: F i × d i
Explanation:
what is one way the internet has made our lives better? *
A. Our photos can become memes.
B. Employers can find out all about us.
C. Staying in touch is easier.
D. People can share our photos without asking.
Answer:
i think the answer is C
Explanation:
Answer:
C
Explanation:
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.
Explanation:
Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping
i need helpppppp asap
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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Give one example when it might be important to know how much gravitational potential energy is stored by an object. Why is it important?
Answer:
A possible situation in knowing the gravitational potential energy of an object is to find it's maximum kinetic energy. It can be important if I would want to calculate the velocity the object will be having if the potential gravitational energy will be converted into kinetic by using the formula.
Why is it not possible for lightning to strike the same area twice?
There's no answer, because there's no question.
It's very highly possible for lightning to strike the same place twice. Or ten times, or a hundred times, or more. Very likely. It happens every day.
Unless the place burns to the ground. Then, it's not too likely that lightning will hit it again after that. But it's still not impossible.
Provide one reason why it would be hard for an alien to view the Earth with a light telescope.
Answer:
The Earth is a very bright object when viewed with a light telescope. The light from the sun reflects off of the Earth's surface and this makes it very difficult to see anything else.
Explanation:
The brightness of the Earth makes it difficult for an alien to view it with a light telescope. The light from the sun reflects off of the Earth's surface and this makes it very difficult to see anything else. The light from the sun can also cause the Earth's atmosphere to glow, making it even harder to see anything else.
The kinetic energy of the attracted magnet and iron
rod came from potential energy in the system,
Evidence Card B: Magnet and Iron Rod
In the Sim, I observed that the amount of potential
energy changed as I moved an iron rod away from a
magnet. When the rod and magnet were released, they
moved toward each other.
How did potential energy get stored in the
magnet/iron rod system?
My steps
Potential energy
Arrangement of objects
placed a magnet
and an iron rod in
the Sim
948)
I moved the iron
rod away from the
magnet
1003
Explanation:
energy changed as I moved an iron rod away from a
magnet. When the rod and magnet were released, they
moved toward each other.
How did potential energy get stored in the
magnet/iron rod system?
My steps
Potential energy
Arrangement of objects
placed a magnet
and an iron rod in
the Sim
948)
I moved the iron
rod away from the
magnet
1003
When a iron rod lies in any magnetic field of a magnet which attracts it. The amount of work done stores as potential energy an iron rod away from a magnet.
What is potential energy?Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases. If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy. It is capable of performing more work when raised.
When a iron rod lies in any magnetic field of a magnet which attracts it. The amount of work done stores as potential energy an iron rod away from a magnet. When the rod and magnet were released, they moved toward each other and this potential energy transforms into kinetic energy .
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Answer quick and correctly for brainliest (remind me to give brainliest i usually forget.) PLEASE ANSWER ITS MY LAST QUESTION AND IM ABSELOUTELY CLUELESS
Marine plants, such as algae, use CO2 to make energy. Ocean fertilization is the introduction into oceans of nutrients that encourage the growth of these plants. How can this technique affect the pH in oceans that already have higher than normal CO2 readings?
Answer:
the pH decreases and the ocean becomes more acidic.
Explanation:
A small change in the pH of seawater can have harmful effects on marine life, impacting chemical communication, reproduction, and growth.
Ocean fertilization can affect the pH in oceans that already have higher than normal carbon dioxide readings as it decreases the pH of the ocean water and it becomes more acidic.
What is Ocean fertilization?Ocean fertilization or the ocean nourishment is a type of technology which include carbon dioxide gas removal from the ocean water and it is based on the purposeful introduction of the plant nutrients to the upper ocean water to increase the marine food production and also for the removal of carbon dioxide gas from the atmosphere.
Ocean fertilization is a technique which affects the pH in the oceanic water and this already have higher than normal carbon dioxide readings. The pH of the oceanic water decreases and the ocean becomes more acidic in nature. A small change in the pH of ocean water can have harmful effects on the organism's life, impacting chemical communication, reproduction, and the growth.
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Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
Which hand is negatively charged?
Answer:
Right because there are plus inside the hand