A car with a mass of 1,200 kg travels a distance of 150 m as it moves from
one stoplight to the next. At its fastest, the car travels at 22 m/s. What is its
kinetic energy at this point?
A. 290,400
B. 8,872 J
C. 580,800 J
D. 13,200 J

Answers

Answer 1

Answer:

A. 290,400

Explanation:

Answer 2

The kinetic energy of a car is 290,400J.

How to find Kinetic energy?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2.

ke = 1/2mv^2

By using the formula, we get

= 1/2 * 1200 * 22^2

= 600 * 484

= 290,400 J

Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.

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Related Questions

A city bus travels six blocks east and eight blocks north east wok is 100 m long is a bus travels as distance and 15 minutes what is the average speed on the bus

Answers

Answer:

the average speed on the bus =  1.55 m/s

Explanation:

From the information we are being provided with ;

a city block travels 6 blocks due east

and 8 blocks due north

the length of the individual blocks = 100m

As such their respective distance will be

distance (d) traveled due east direction by bus = 6 × 100 = 600 m

distance (d) traveled towards the north direction by bus = 8 × 100 = 800 m

The total distance covered  = (600+ 800)m

= 1400 m

However, it requires 15 minutes to travel this distance by bus.

Thus,  

the average speed = distance/ time

the average speed on the bus = 1400 m / (15 × 60) s

the average speed on the bus =  1400 m / 900 s

the average speed on the bus =  1.55 m/s

what test is an aptitude test

Answers

An aptitude test is a systematic means of testing a job candidate's abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring. The results are quantified and compared with all other test takers.

Answer:

Hi There!

Explanation:

An aptitude test is a systematic means of testing a job candidate’s abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring, with the results quantified and compared with all other test takers.

~Your Welcome!

Which material will heat up the most quickly if placed near a heat source?
Rubber
Plastic
Glass
Metal

Answers

Answer:

Metal

Explanation:

Just answered on Apex

Metal is the material will heat up the most quickly if placed near a heat source. Option D is correct.

What is heat ?

The movement of energy from a hot to a cold item is characterized as heat. Heat energy flows from a hot material to a cold one.

This occurs because faster-vibrating molecules transmit their energy to slower-vibrating ones. Heat content is another name for vibrational energy.

It is hot or chilly depending on how much heat is there in the body. The body will be hotter as the heat content increases. The movement of energy from a hot to a cold item is characterized as heat.

The heat flow in the material is due to the free electrons. In the metal, no of free electron is highest. Metal is the material will heat up the most quickly if placed near a heat source.

Hence, option D is correct.

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how does bilateral symmerty extend to our senses?​

Answers

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

A rowboat that is traveling 2.5m/s to the north, encounters a current traveling 4.3m/s to the east. What is the resultant velocity of the rowboat, including the angle?

Answers

Pablo clavó un clavito

The results of a dart game were precise but not accurate. The accepted value of the game was the center of the dartboard. Which correctly describes the results? All of the darts hit the center of the board. Some of the darts hit the center of the board. The darts hit the same general area of the board. The darts hit very different areas of the board.

Answers

Answer:

The darts hit very different areas of the board.

Explanation:

The bullseye is the point at which darts are most accurate. There is no accuracy nor precision if the darts are neither close to the target nor to one another.

What is dart precision?

The degree of similarity between several measurements is known as precision.

Even if the measurements are not exactly the right value, they are very reproducible.

Throwing darts at a dartboard can be used to demonstrate accuracy and precision.

There is precision but not accuracy if every dart lands distant from the bulls-eye but extremely closely spaced apart.

In contrast to a dart that lands far from the bulls-eye, which shows poor accuracy, a dart that hits the bulls-eye is very accurate.

Therefore, The board was struck by the darts in a variety of ways.

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A car is traveling at 100 km/h. How many minutes will it take to cover a distance of 750 km?

Answers

Answer:

7.5 minutes (you mean hours)

t = 7.5 min (if it was actually not hours than put minutes just letting u know.)

Explanation:

The first thing you have to do is know the equation; it is t = d/s, which is time = distance divided by speed. Know fill in the equation, now it will be t = 750 km/100 km/ hr ( in this min). If you divide it, then the answer will be t = 7.5 min (which it has to be hours instead of min because hours makes more sense than minutes.)

The car will take 7.5 hours to cover a distance of 750km.

What are Speed and velocity?

Speed ​​is defined as the rate over time at which an object is moving along a path, while velocity is defined as the rate and direction of motion of an object. Speed is a scalar quantity as it has only magnitude, no direction but Velocity is a vector quantity as it has both magnitude as well as direction.

Speed can be expressed as:

Speed= Distance travelled/ Time taken

Velocity can be expressed as:

Velocity= Displacement travelled/ Time taken

Both the quantities are expressed as meter per second (m/s).

If the two values are given , we can calculate the another value like in the above given information, speed of the car = 100km/hr and distance travelled by the car= 750 km.

So, Time taken= 750/100 = 7.5 hours

Thus, the car will take 7.5 hours to cover a distance of 750km.

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What force is required to accelerate a 6 kg bowling ball at 2 m/s/s forward?

Answers

Answer:

12N

Explanation:

Force = mass * acceleration.

6 * 2 = 12

Taking into account the Newton's second law, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.

In first place, acceleration in a body occurs when a force acts on a body. There are two factors that influence the acceleration of an object: the net force acting on it and the mass of the body.

Newton's second law states that this force will change the speed of an object because the speed and / or direction will change. These changes in velocity are called acceleration.

So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object.

Mathematically, Newton's second law is expressed as:

F= m×a

where:

F = Force [N] m = Mass [kg] a = Acceleration [m/s²]

In this case, you know:

F= ? m= 6 kg a= 2 m/s²

Replacing:

F= 6 kg× 2 m/s²

Solving:

F= 12 N

Finally, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.

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Think and discuss: Why do you think the rate of temperature change does not stay constant over time? If possible, discuss your answer with your teacher and classmates.

Answers

Because the temperature of the place its contained in is constantly changing, for example, if you put a room temperature item in the fridge it will become cold, or whatever the temperature you set your fridge to.

Variation in the factors of climate leads to variable temperature around the world.

The rate of temperature change does not stay constant over time because of changes occur in the climatic factors. The climatic factors such as latitude, elevation, nearby water, ocean currents, topography, vegetation, and prevailing winds can't remain constant which leads to variable temperature in different regions of the world.

The temperature will remain the same if all the world has same environmental conditions so we can conclude that variation in the factors of climate leads to variable temperature around the world.

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Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?

Answers

Answer:

Speed greater than 4 m/s

Explanation:

Given that Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?

The distance = 12 m

Time = 3s

Speed = distance/time

Speed = 12/3

Speed = 4 m/s

Ms Kasper must run at speed more than 4m/s for her to save the cat.

List the planets that have MORE THAN 3 moons.

Answers

Answer:

jupiter they have 79 moons,saturn has 62,uranus has 27,neptune has 14,pluto has 5,

Explanation:

is -9/6 irrational, rational, and integer, a whole, number or natural?

Answers

Answer:

-9/6 is only rational.

Explanation:

-9/6 = -1.5

not an integer bc decimal

not irrational because it can be represented as a fraction

not a whole or natural number because its negative.

(USE THE GRAPH) Vectors B and C and are shown in the graph. Vector B is multiplied by the scalar 92. What angle does the new vector make with the x-axis?​

Answers

Answer:

The angle the new vector makes with the x-axis is 33°

Explanation:

By multiplying a vector with a scalar, we multiply the similar components of the two quantities which is the magnitude of the scalar quantity and the magnitude of the vector with the new vector formed will have a magnitude equal to the product of the two magnitudes and the same direction of the original vector as follows;

The magnitude of the vector B = 5.6

The magnitude of the scalar = 92

The product of the two magnitudes = 5.6 × 92 = 515.2

The magnitude of the new vector = 515.2

The direction of the new vector = 33° South of West

Therefore, the angle the new vector makes with the x-axis = 33°.

If the weight of displaced liquid and the weight of an object are the same, the object will:

(A) sink
(B) float
(C) float, but partially submerged

Answers

Answer:

c

Explanation:

I think but if I'm wrong I'm sorry

Answer:

i think its float

Explanation:

Where does the energy of plasma come from?

Answers

Answer:

El plasma es un estado de la materia que se caracteriza por su alta energía e inestabilidad. La energía del plasma, entrando en contacto con la superficie de materiales sólidos – plásticos o metales – modifica sus propiedades fundamentales, como por ejemplo la tensión superficial.

Explanation:

Plasma – el cuarto estado de la materia

A través de aportación de energía se cambia el estado de la materia: de sólido a líquido y de líquido a gaseoso. Si al gas se aporta energía adicional, éste se ioniza, es decir, que por la mayor energía el gas se convierte en plasma - el así llamado “cuarto estado de la materia”.

Answer: I translated it

Hope to get Brainliest.

Plasma is a state of matter that is characterized by high energy and instability.  The energy of the plasma, coming into contact with the surface of solid materials - plastics or metals - modifies their fundamental properties, such as surface tension.

Explanation:

Plasma - the fourth state of matter

Through the contribution of energy, the state of matter is changed: from solid to liquid and from liquid to gas. If additional energy is supplied to the gas, it is ionized, that is, due to the increased energy the gas is converted into plasma - the so-called “fourth state of matter”.

A car is traveling at 40 m/s. If it travels for 30 s how far will it travel.

Answers

Answer:

okay I might be wrong but it was an answer i had in like fifth grade MAYBE 1,200 meters

Explanation:

Which event causes the least amount of time to go by on the game clock?

Question 3 options:

A three-point shot


A bounce pass


A free throw


An alley-oop

Answers

answer : free throw does

The event that causes the least amount of time to go by on the game clock is a free throw.

In basketball, a free throw is an unhindered shot made from behind a set line.

This throw (free throw) is produced because of a foul caused by an opponent.

The obtention of free throws can be a strategy to win a game.

In conclusion, the event that causes the least amount of time to go by on the game clock is a free throw.

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I need help finding the average acceleration fo tyler and bree

Answers

fo really bro learn how to spell

A biker starting from rest reaches a final speed of 3.0 m/s in 3 seconds. What is the acceleration of the biker?

Answers

Answer:

1 m/s²

Explanation:

Given:

v₀ = 0 m/s

v = 3.0 m/s

t = 3 s

Find: a

a = (v − v₀) / t

a = (3.0 m/s − 0 m/s) / 3 s

a = 1 m/s²

explain at least two differences between justice system laws and scientific laws.

Answers

The adversarial system is rigid – the roles are proscribed – the prosecutor wants to convict, the defendant wants a decision of not guilty. They are not just allowed but expected to bias their presentation, trusting the truth to come out between the adversaries. Science certainly has its sides of partisanship and bias. But these sides are self-imposed and can be abandoned at any time. While a prosecutor should not lie or hide evidence, and should drop a case if they become convinced the defendant is innocent, they wake up in the morning with no choice about which side of the argument they will come down on. In the criminal justice system the advocates are rigidly fixed in their roles and the jurors are rigidly neutral (the process to find a random neutral jury took as long as the trial itself). In science, the advocates are the same people as the jurors. And as a result they have to be willing to be flexible and change their minds. A good scientist shouldn’t have a pre-determined rigid answer to a question.
Lack of investigation – we jurors were told over and over not to investigate the situation ourselves. We were to make our decision only on the basis of the evidence presented to us. I can tell you in the case I was on there were at least two whopping big questions hanging over the case that nearly every juror in the room identified as very important but not addressed by either lawyer. Either one of them (whether the defendant’s schedule allowed time to drink before being stopped in the car, whether a particular medical condition could affect breathalyzer tests) could have changed the outcome. We could have answered one of these with 10 minutes on google and the other with some very simple subpoena of records. But we couldn’t use any of this. Scientists obviously are the opposite – if they need more information, they are expected to go get it before making an opinion.
Reliance on personal testimony – although science and trials share a focus on evidence, trials recognize testimony of individual people under oath as a major form of evidence. They certainly acknowledge the possibility of lying and explicitly instruct jurors to decide what testimony they believe. My case was unusual in that there was so much video footage, but still a majority of the case came down to testimony by the police officers, and most cases even a few years ago would have had only testimony. Science on the other hand, doesn’t accept testimony. Or does it? What else is the methods and results section of a paper? I’m on the fence whether science is so different on this one.

Please help me on this position-time graph assignment!!!

Answers

[tex]\text{Hello there! :)}[/tex]

[tex]\text{The velocity is essentially the slope of the graph in a position vs. time graph, so:}[/tex]

[tex]\text{Given: From 0 - 8 sec, velocity of 10 m/s.}\\\\\text{From 8 - 18 sec, velocity of -5 m/s. (In opposite direction because of the negative sign)}\\\\\\\text{From 18 - 22 sec, velocity of 0 m/s. (Object at rest)}\\\\\text{From 22 - 24 sec, velocity of 5 m/s.}\\\\\text{Graph the position vs. time graph using the velocities as the slope of the line }[/tex]

if a object falls from 5 meters how long did it take for it to reach the ground explain(gravity= -10)

Answers

Idkgfjfjfjriurugucufududu

Explanation:

[tex]time \: period = \sqrt{ \frac{2h}{g} } = \sqrt{ \frac{10}{10} } = 1sec[/tex]

can someone give me the answers to this question ​

Answers

Answer:

Rubbing his hand and ironing is Mechanical Energy being transformed into Thermal Energy.

Throwing a rock vertically in using Kinetic Energy, it then transforms into Gravitational Energy as the rock falls.

Explanation:

First, as Kwane rubbing his and and iron his clothes using the energy to create heat, that is thermal being transformed.

The rock being thrown uses kinetic energy and due to graviational force of the earth, it is being transformed into Potential Gravitational Energy.

In what ways are plasmas similar to gases? What makes plasmas different than gases?

Answers

It takes a very special environment to keep plasmas going. They are different and unique from the other states of matter. Plasma is different from a gas, because it is made up of groups of positively and negatively charged particles. In neon gas, the electrons are all bound to the nucleus.

Answer:

Like gases, the particles in plasmas are constantly moving at high speeds, and do not have a definite shape or volume. Plasma is formed when the kinetic energy of the molecules in a gas gets very large and the temperature gets very high. This causes electrons to be released by the atom, creating ionized particles, which are positive ions and negative electrons.

Explanation:

Sample Response <3.

Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false

Answers

Answer:

The answer is True

Love, which can’t be observed or measured directly, is an example of a psychological construct.

Explanation:

On edge 2020

The world record for the fastest train on Earth was set by abullet train from Tokyo to Osaka in Japan. Without passengers,it can travel at a speed of 300 km/hr. How many centimeters
per second can it travel?
cm/sec. *round to nearest whole number *

Answers

Answer:

8333

Explanation:

300km/hr = 300/60 = 5 km per min

5km/min = 5/60 = .08333333km per sec

km to cm = 100000, so

.083333 * 100000 = 8333

The train would travel at a speed of 8333.33 centimeters/second.

What is speed?

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.

As given in the problem the world record for the fastest train on Earth was set by a bullet train from Tokyo to Osaka in Japan. Without passengers, it can travel at a speed of 300 kilometers/hour,

1 kilometer = 1000 meters

1 meter = 100 centimeters

300 kilometers = 300×100000  centimeters

the speed of the fastest train = 300×100000  centimeters /3600 seconds

                                                = 8333.33 centimeters/second

Thus, the speed of the fastest train would be 8333.33 centimeters/second

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Question 10 of 15
Which of the following are not phases of matter?
A. Gas
B. Mixture
€. Liquid
D. Compound
E. Solid

Answers

Answer:

B. and D.

Explanation:

phases of matter are solid liquid and gas

Answer:

b and d

Explanation:

phases are solid liquid and gas

How many significant figures?
5.0001
O None of these are correct
O 5
02
0 1

Answers

5

if zero falls between two significant numbers it becomes significant.

Human activities can have positive and negative effects on the environment Humans can benefit natural areas by CA throwing waste products in these areas. B. removing all the vegetation from these areas. c. polluting the areas by burning fossil fuels. D. preserving the natural resources that they provide​

Answers

Answer:

D

Explanation:

Clearly you can't help the environment by throwing waste in the area, polluting it, or burning it all up, so D would be our only option.

Have a good day :)

Why is the pressure so high deep inside the outer planets?

Answers

Answer:

they a giant ball of gases, so the answer is they have very large gas masses

Explanation:

Answer:

get G OA S S E d

Explanation:

d gasses are large

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