Two children, totaling 200 kg, are traveling at 10 m/sec in a 100-kg bumper car during an
amusement park ride. They deliberately collide with an empty second car, mass 100 kg, which is
at rest. What is the momentum of the empty car?

Answers

Answer 1

Answer:

0kgm/s

Explanation:

The momentum of the empty car is zero.

Momentum is the quantity of motion a body possess. The more the mass and velocity by which a body moves, the higher is its momentum.

 Momentum  = mass x velocity

Since the second car is at rest, the velocity is 0m/s;

 So;

     Momentum  = 100 x 0 = 0kgm/s

Therefore, a body at rest has zero momentum


Related Questions

please help me ;3 (ALSO REMEMBER IT SAYS SELECT TWO)

Answers

Answer:

B and C

Explanation:

It is a reaction between a component(chemical reaction).

I would say c and a

I need help with this asap please!!

Answers

Answer:

9000Ns

Explanation:

Given parameters:

Mass of sled  = 100kg

Net force  = 150N

Time  = 1min  = 60s

Unknown:

Total impulse  = ?

Solution:

The total impulse on the body can be derived using the expression below;

   Impulse  = Force x time

  So;

      Impulse  = 150 x 60  = 9000Ns

Define fractional distillation

Answers

Answer:

separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractionating column.

Answer:

Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate.

A force of 6.0 Newton’s is applied to a block at rest on a horizontal frictionless surface over a 7.0 meter span. How much energy is gained by the block.

Answers

Answer:

42J

Explanation:

Given parameters:

Force applied  = 6N

Distance moved  = 7m

Unknown:

Amount of energy gained by the block  = ?

Solution:

The amount of energy gained by the block is the same as the work done on the block.

The work done is the force applied to move the block through a distance;

 Energy gained  = force x distance  = 6 x 7  = 42J

A 20 kg bike accelerates at 10 m/s2. What was the force? a.200 Newtons b.20 Newtons c.25 Newtons

Answers

Answer:

a.200 Newtons

Explanation:

Given the following data;

Mass = 20kg

Acceleration = 10m/s²

To find the force;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

[tex] F = ma[/tex]

Where;

F represents force.

m represents the mass of an object.

a represents acceleration.

Substituting into the equation, we have

[tex] Force = 20 * 10 [/tex]

Force = 200 Newton.

What is the action and reaction if a person takes a step back

Answers

Answer:

action is backward and i guess reaction is sad

True or False
1)All forces cause a change in an object’s speed and direction.

Answers

Answer:

True

Explanation:

Answer and Explanation:

True I believe bc if you put a certain amount of force on an object it'll move and depending on where you place the force on the object it'll move in that direction. How much force and how much weight the object has will determine the speed...

A car has a mass of 1500 kg and accelerates at a rate of 15 m/s^. What was the force applied?

Answers

Answer:

22500N

Explanation:

Given parameters:

Mass of the car  = 1500kg

Acceleration  = 15m/s²

Unknown:

Force applied  = ?

Solution:

From Newton's second law of motion:

  Force  = mass x acceleration

So

     Force  = 1500 x 15  = 22500N

please help! you are amazing! brainliest too!

NASA helps fund science education.

Which statement about scientific knowledge is false?

A. Understanding science can help people make wiser purchases.
B. People with more knowledge of science are always healthier.
C. People with college degrees in science often earn high salaries.
D. Science education can help people understand the universe.

Answers

I think it’s B hope it helps:)

Answer:

I think its B and I don't know why my words are like this

Explanation:

Sir Isaac Newton was among the first to observe the movement of objects and express those observations as laws. According to Newton's law of inertia, a body

a. in variable motion will remain in motion unless its state of matter changes.

b. with no kinetic energy will remain along a path with a constant radius.

c. with a variable potential energy will remain with a constant, nonzero acceleration.

d. in uniform motion will remain in motion unless it is acted upon by an outside force ​

Answers

Answer:

it's D

Explanation:

Newton's first law of motion states that a body at rest remains at rest or if in motion remains in motion at a constant velocity unless acted upon by a external Force

The correct option is D. In uniform motion will remain in motion unless it is acted upon by an outside force .

What is newton s law ?

Unless influenced by an imbalanced force, an item at rest stays at rest, and an object in motion keeps moving in a straight path at a constant pace. An object's acceleration is determined by its mass and the force being applied.

Every time one object applies force to another, the other object applies an equal and opposite force to the first.

According to Newton's first law, unless pushed to alter its condition by the operation of an external force, every object will continue to be at rest or in uniform motion in a straight line. Inertia is the propensity to resist changes in a condition of motion.

Therefore, The correct option is D. In uniform motion will remain in motion unless it is acted upon by an outside force .

To learn more newtons law, refer to the link:

https://brainly.com/question/15280051

#SPJ2

please help! easy science! second pic is the question and possible answers (A B C or D) its one question! brainliest promised!

Answers

Answer:

Please do not take my word for this at all, but this is what I found, "When the pendulum swings back down, the potential energy is converted back into kinetic energy. At all times, the sum of potential and kinetic energy is constant." So I think the answer is B also you are anime fan too lol :DD I love hinata

Explanation:

I’ll give brainliest and 10 points

Answers

Answer:

A) (1) and (2)

Explanation:

pls mark me brainliest

The answer is i and ii/ aka answer A

HELP PLS MARKING BRANLIST 100 Pts TAKING TEST RN


Which of the following is an example of deceleration?

- 10 m/s


17 m/s


3 m/s2


-3 m/s2

Answers

Answer:

-10 m/s

Hope this helps!!!

plzzz helpp mee guysss!!! plzzzz
A car is traveling north on the interstate. They cover 645 miles in 9 hours. What is the car's average velocity? ​

Answers

123465798012345678901243567980

Answer:

ycuvivxuduviguv8vifudsyfucuv

Need help ASAP
Thanks+ BRAINLIST only for correct answers it’s due in 10 mins I really need help

1.what is the order if visible light in increasing energy?
-violet, indigo, blue, green, yellow, orange, red
-red, orange, yellow, green, blue, indigo, violet

2.visible light is a mixture of
-refraction and reflection
-atoms and molecules
-many colors
-ultra violet and non violet rays

Answers

1- option 2
2- option 1

Explanation:

1A. The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.

so its option 2

2A. Atom and molecules

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AND PLEASE MARK ME AS "BRAINLIEST" ANSWER

HOPE IT HELPS YOU

2. Which animal is a primary consumer in the Ethiopian Highlands?
walia ibex
tiger
black lion
prairie dog

Answers

Answer: Wallia Ibex

Explanation: Black lions and tigers are not primary consumers. However, the Wallia Ibex is a primary consumer, hope it helps :D.

If an ice cube with the mass of 5.0 grams melts in a closed system such as closed glass jar, what is the mass of the liquid water after the ice cubes completely melts?


A) 4.0 grams

B) 5.0 grams

C) 6.0 grams

D) The mass cannot be determined without knowing the volume.

Answers

Answer:

4.0 grams

Explanation:

Answer:

B) 5.0 grams

Explanation:

Its right

PLEASE HELPPPPPPPPPP I WILL GIVE YOU BRAINLIEST Catalina's class wants to determine if boys or girls recycled more paper each day. They set up separate recycling bins in the classroom and labeled them "Boys" and "Girls." The students then placed their paper items in the correct bins. Which of the following should the students do each day before emptying the bins?

Answers

Answer:

what are the answer choices

Explanation:

i dont know the choices so i say count the stuff they recycle, and add the score to the days before.

Can somebody please work these questions out for me?.

Answers

Answer:

Please find the calculated values entered into the following table;

[tex]\left\begin{array}{ccccc}Object & Mass \ (kg)& Weight \ (N) & Height \ (m)&G.P.E.\\A&5&50&2&100\\B&2&20&6&120\\C&8&80&5&400\\D&20&200&0.6&120\\E&5,000&50,000&2&100,000\\F&0.2&2&10&20\\G&67&670&44&29,480\end{array}[/tex]

Explanation:

The given parameters are;

The acceleration due to gravity, g ≈ 10 N/kg

The Gravitational Potential Energy, G.P.E. = m × g × h

The weight of the object, W = m × g

∴ G.P.E. = W × h

The table is filled using the above formula for calculations as follows;

For object A, we have;

Weight = 5 kg × 10 N/kg = 50 N

G.P.E. = 50 N × 2 m = 100 J

For object B, we have;

Weight = 2 kg × 10 N/kg = 20 N

G.P.E. = 20 N × 6 m = 120 J

For object C, we have;

Weight = 8 kg × 10 N/kg = 80N

G.P.E. = 80 N × 5 m = 400 J

For object D, we have;

Weight = 20 kg × 10 N/kg = 200 N

G.P.E. = 200 N × 0.6 m = 120 J

For object E, we have;

Weight = 5,000 kg × 10 N/kg = 50,000 N

G.P.E. = 50,000N × 2 m = 100,000 J

For object F, we have;

Weight = 0.2 kg × 10 N/kg = 2 N

G.P.E. = 2 N × 10 m = 20 J

For object G, we have;

Weight = 67 kg × 10 N/kg = 670 N

G.P.E. = 670 N × 44 m = 29,480 J

Therefore, we have the table filled as follows;

[tex]\left\begin{array}{ccccc}Object & Mass \ (kg)& Weight \ (N) & Height \ (m)&G.P.E.\\A&5&50&2&100\\B&2&20&6&120\\C&8&80&5&400\\D&20&200&0.6&120\\E&5,000&50,000&2&100,000\\F&0.2&2&10&20\\G&67&670&44&29,480\end{array}[/tex]

What does the speed of air have to do with air pressure?


Detailed answer pls!!! i will give brainliest!!!!

Answers

Answer:

The air speeds up, and as it speeds up, its pressure—the force of the air pressing against the side of the object—goes down. ... This means that if the area in which the air is moving narrows or widens, then the air has to speed up or slow down to maintain a constant amount of air moving through the area.

Please give brainliest!!!!

I NEED THIS ASAP !!!!
What is the total momentum of the system above? _kg.m/s
After they collide what will be the total momentum ? _ kg.m/s

Answers

Answer:

Well I'll say the answer is

A.21

B.21

Explanation:

The law of conservation of momentum states that the total momentum in a system remains constant

And

To find the Total momentum in a body, you'll have to multiply the mass of the body to it's velocity

And

To find the total momentum, you'll add the momenta in every body present in the system

Answer:

11g

Explanation:

i think

A soccer ball is kicked horizontally and rolled off of a 30 meter high cliff. The soccer ball was kicked with a velocity of 17m/s. How long did it take before the ball hit the ground? How far from the cliff did the ball land? (Make sure to include units.)
VERTICLE
Acceleration =
Distance =
Initial velocity=
Time=
HORIZONTAL
Distance=
Velocity=
Time=
Show your work when solving for time:


Show your work when solving for horizontal distance:

Answers

Answer:This will hopefully help. It took me a while so will you mark me brainliest? Thanks!

Explanation:

velocity=Vertical (y) info:

• y = -22.0 m

• viy = 0 m/s

• ay = -9.8 m/s2

distance=

acceleration=

time=

horizontal=Horizontal (x) info:

• x = 35 m

• vix = ?

• ax = 0 m/s2

Initial velocity=16.5 m/s

VOCAB:Horizontal motion is constant

velocity- motion

acceleration-increase in the rate or speed of something.

distance-Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria (e.g. "two counties over"). The distance from a point A to a point B is sometimes denoted as. .

time-a point of time as measured in hours and minutes past midnight or noon.

Explanation:

The soccer ball travels a horizontal distance of

33.9 m after being kicked with horizontal velocity of 18.8ms−1. Assuming air resistance is negligible.

Time of flight of the ball

t=Distance Speed=33.918.8s In the vertical direction kinematic equation is

height

h=ut+12gt2 Initial velocity uv=0, acceleration due to gravity g=9.81ms−2. Inserting various values we get h=0×33.918.8+12×9.81×(33.918.8)2⇒h=12×9.81×(33.918.8)2

⇒h=15.9m, rounded to 3 sig. figs

Instructions
Question 6 of 20 :
Select the best answer for the question.
6. Snap-action switches operate with
O A, springs.
B. electromagnetic current.
C. magnets.
D. clasps.

Answers

A group of students toured a limestone cave in northwest Georgia.
Which of these best explains how the limestone caves in Georgia were formed?
A. Plant roots split the rock.

B. Acidic water dissolved the rock.

C. Animals burrowed into the rock.

D. Ice formed and broke up the rock.

examine this diagram of the human heart. what is the structure indicated by the arrow?

I unfortunately can't post a picture because I am uploading this question from my computer but I will do my best to describe the image.
It's a normal picture of a human heart, but there is an artery going down and there is an artery going to the right, I need the name of the artery going to the right because that is what the arrow is pointing at.

A. The Pulmonary Artery
B. The Pulmonary Vein
C. The Superior Vena Cava
D. The Aorta

Answers

Answer:

Right coronary artery

Explanation:

Right coronary artery (RCA). The right coronary artery supplies blood to the right ventricle, the right atrium, and the SA (sinoatrial) and AV (atrioventricular) nodes, which regulate the heart rhythm.

Answer:

A.) Pulmonary artery

Explanation: Someone told me Aorta and i got it wrong....

An unknown element has been studied in the lab. It has been shown to be malleable, ductile, and a good conductor of heat. Which element best fits this description?

Answers

Can’t tell ya bud sorry

Need help ASAP
Thanks+ BRAINLIST only for correct answers

4. Which of the following sets of EM radiation can harm your body cells?
a. Gamma ray, microwaves, infrared
b. Light, ultraviolet, x-ray
c. Microwaves, ultraviolet, infrared
d. Ultraviolet, x-ray, gamma ray

Answers

Answer:

the correct one is D,  

Ultraviolet, x-ray, gamma ray

Explanation:

Electromagnetism radiation are waves of energy that is expressed by the Planck relationship

          E = h f

where h is the plank constant and f the frequency of the radiation.

Also the speed of light is

          c = λ f

         

we substitute

          E = h c /λ

therefore to damage the cells of the body radiation of appreciable energy is needed

microwave radiation has an energy of 10⁻⁵ eV

infrared radiation                E = 10⁻² eV

visible radiation                   E = 1 to 3 eV

radiation Uv                         E = 3 to 6 eV

X-ray                                    E = 10 eV

 

gamma rays                         E = 10 5 eV

therefore we see that the high energy radiation is gamma rays, x-rays and ultraviolet light.

When checking the answers, the correct one is D

Which of the following statements is true?


A.

Most metals and nonmetals conduct electricity well, but metals cannot conduct heat.


B.

Most nonmetals can be drawn into a wire, while metals would break apart.


C.

Most metals and nonmetals conduct heat well, but nonmetals cannot conduct electricity.


D.

Most metals can be drawn into a wire, while nonmetals would break apart.

Answers

Answer:

D.   Most metals can be drawn into a wire, while nonmetals would break apart

Explanation:

The correct statement from the given choices is that most metals can be drawn into a wire while non-metals would break apart.

Metals are malleable due to the presence of metallic bonds between their atoms. The large electron cloud due to the electropositivity of metals allows for the wide range of physical properties observed in them.

Metals are also conductors because they have free mobile electrons. Therefore they can conduct heat and electricity.

Non-metals are brittle and cannot conduct neither heat nor electricity.

True or false: in our solar system, only the sun creates radio waves

Answers

False hdhsbsbsbjsjsndndbxhsisj

Radiation can affect living cells. Which of the following uses of radiation is a non-example of this fact?
A. Treatment of cancer
B. Dating fossilized stone
C. Preservation of fresh fruits
D. Sterilization of medical equipment

Answers

Radiation can affect living cells. Which of the following uses of radiation is a non-example of this fact?
A. Treatment of cancer

True or False. When light passes from one medium to another the speed stays constant

Answers

The speed of light is not the same across different medium because of different refractive index. The correct answer is False

The speed of light is approximately 300000000 m/s in a vacuum.

This speed is not the same across different medium because of different refractive index of different medium. Light travels at approximately 300000000 m/s in a vacuum at refractive index of 1

The refractive index of water is about 1.3 which will eventually limit the speed of light. Likewise, the refractive index of glass is about 1.5. This will further reduce the speed at which light travels.

It is therefore False to say that : When light passes from one medium to another the speed stays constant

Learn more about light here: https://brainly.com/question/1363382

Answer:

False

Explanation:

Other Questions
mention two sections department of the police force Whats a cows favorite type of math? You are diving a car out in rural America and suddenly you get a flat tire. you pull off to the side of the road. you check your cell reception and dont have a single bar of signal (your cell phone won't work). you look around and there is no other cars or houses anywhere in sight and you do not remember the last time you saw a passing car or house. you are absolutely alone. the sun is setting and it is just starting to get dark. you get out and jack up the car, loosen the 4 nuts, take off the wheel with the flat tire. you grab the spare from the trunk and slide it onto the axle- you then look around for the 4 nuts and they are no where to he found. you search everywhere and cant find them. its gettint cold and dark. you look at the car, what can you do? all four of the nuts from the wheel have vanished snd are just gone. explain what you can do and why? remember, you cant call anyone because there is no reception, there is no one else on the road and you havent seen anyone in hours, its getting dark and cold, the 4 nuts from the wheel are gone, the car cannot drive safely with only 3 wheels Learning about the parts of an atom is important becauseIt can help us create a better model of an atom.It can help us create new elements.It can help us study how cells in the body functions.It can help us explain the universe. I have provided the question below Identify two events that helped Octavian to become the only ruler of the Roman Empire.A. Julius Caesar named Octavian as his heir.B. Octavian successfully defeated his rival Mark Antony in war.C. Octavian formed an alliance with the Carthaginian empire.D. Julius Caesar was deeply unpopular among the plebeians of Rome.E. Emperor Augustus supported Octavians rise to power. I guess . . . I mean, youre right.You O.K. for a youngster, the old man said as he tied the strings around his leg, better than those scalawags what come here looking for my treasure. Thats for sure.You really think that treasure of yours was worth fighting for? Greg asked. Against a pipe?What else a man got cepting what he can pass on to his son, or his daughter, if she be his oldest? Lemon Brown said. For a big-headed boy you sure do ask the foolishest questions.The Treasure of Lemon Brown,Walter Dean MyersHow does the author clearly show who is speaking in this passage? Check all that apply.He makes the characters speak in their own voice and style.He always uses a speaker tag.He adds a paragraph break when the speaker changes.He sometimes uses a speaker tag. 16.As the elements in Group 17 on the Periodic Tableare considered from top to bottom, what happensto the atomic radius and the metallic character ofeach successive element?A. The atomic radius and the metallic characterAboth increase.B. The atomic radius increases and the metalliccharacter decreases.C. The atomic radius decreases and the metalliccharacter increases.D. The atomic radius and the metallic characterboth decrease. What is most significant about the Empire of Ghana?A) It never completely met its full potential.B) It was the first super power in West Africa.C) It was a beacon of light for scholarly work in Africa.D) It was used as a trading station by Indian traders. simplity 45p =please help me out i may think the answer could be like 45= 20p? Compare and contrast the conditions required for snow and rain to form. Simplify the expression by adding.(4x + 8) + (7x - 3)O 16x-3x + 11O 3x + 5O 11x + 5 Suppose you roll a special 24-sided die. What is the probability that the number is a 1 or a 2 At the midpoint of the current year, a $88,000 check is given for land, and the buyer assumes the liability for unpaid taxes in arrears of $2,200 at the end of last year and those assessed for the current year of $1,980.Determine the cost used for recording the land acquired. Select the correct answer.Which of these factors can be created as a physical model?OAa next-generation carOB.software codeOC. website addressOD.conversion of energyO E knowledge of a product Determine the x- and y-intercepts of the graph of x4y=8.Then plot the intercepts to graph the equation. Why did the area of Mesopotamia have such deep and complex culture found in it in the late ancient times? Define the following words:Cellular membrane Passive transport OsmosisSimple Broadcast Dissemination facilitatedActive transport Endocytosis PhagocytosisPinocitosis Exocytosis Question 12The average mass of Jeremy, Mark and Zack is 28 kg. If Jeremy and Zack's average mass is29kg. How heavy is Mark? The study of the role consumers play in a economic system is called what