If a marathon runner runs a distance of 5 km (kilometers) in 45 minutes. What is his speed?

Answers

Answer 1

Given parameters:

Distance  = 5km

Time taken = 45 minutes

Unknown:

Speed  = ?

Solution:

Speed is a physical quantity.

It is given as;

   Speed  = [tex]\frac{distance}{time}[/tex]

Since the unknown is speed;

     convert the time given to hours;

         60min  = 1hr

         45min = [tex]\frac{45}{60}[/tex]   = [tex]\frac{3}{4}hr[/tex]

So, speed  = [tex]\frac{5}{\frac{3}{4} }[/tex]   = 5 x [tex]\frac{4}{3}[/tex]  

                        = [tex]\frac{20}{3}[/tex]km/hr


Related Questions

Which of the following is NOT an element of culture?

Language
Religion
Climate
Social system

Answers

Answer: Climate

Explanation:

Climate is part of the weather, not the culture.

all the other options are part of culture so you could also use process of elimination to figure out the answer is climate :)

Answer:

A climate is not an element of culture

Explanation:


Which of the following country demographics would be used to explain the need for the pronatalist policies shown?

Answers

Answer:

A country with a birth rate of  43 , a death rate of  12 , and a rate of natural increase of  3.1 , passes a law that requires paid maternity leave.

Explanation:

pro means for

I don't get this question so someone pls help :)

Answers

Answer:

the answer is C (I think)

Explanation:

Jana is lives near the ocean. How do the Earth,the sun, and the moon interact to affect his life.

Answers

The sun keeps her warm.

The Earth produces carbon dioxide. so she can breath.

The moon helps control the tide.

Seismometers are used in the triangulation method. To find the correct location of an epicenter, the seismometers used must be within 1,000 km of each other.

TRUE/FALSE

Answers

Answer:

True buddy

Explanation:

Seismometers are used in the triangulation method and it is true to state that to find the correct location of an epicenter, the seismometers used must be within 1,000 km of each other. hence, the given statement is true.

What is Seismometer?

A seismometer is a device that detects vibrations in the ground brought on by explosions, volcanic eruptions, and earthquakes. A seismograph is typically made up of them along with a timing device and a recording device.

A seismograph, also known as a seismometer, is a device used to identify and document earthquakes. It typically consists of a mass that is fastened to a fixed base. The base moves during an earthquake but the mass does not. It is common to convert the base's motion with respect to the mass into an electrical voltage.

hence,  Seismometers are used in the triangulation method and it is true to state that to find the correct location of an epicenter, the seismometers used must be within 1,000 km of each other. the given statement is true.

Learn more about Seismometer:

https://brainly.com/question/248561

#SPJ2

how are the continents important to man​

Answers

Answer:

Continents are important for our evolution because, thanks to them, human beings for thousands of years were able to develop in different ways, for example some humans who are used to the cold of North America or Europe, or those who are used to the heat of Africa or parts of Asia, the continents are important to the man in question genetics

Continents are important to man kind because it separates us from land we dont know and land to be discovered

a geographer would most likely use a sonar to do what?

Answers

Answer:

Term map a section of the ocean floor[image]

Explanation:

Answer:

Map the ocean floor.

Explanation:

Sonar is a great tool!

which location experiences the greatest range in daylight hours throughout the year

a.anchorage, AK
b.Chicago, IL
c. Quito, Equador
d. Melbourne, Australia

Answers

Answer:

Anchorage, AK, experiences the greatest range in daylight hours throughout the year.

Explanation:

The daylight patterns throughout the year differ from place to place. The biggest factor is the latitude. The basic rule is that the closer a place is to the Equator the smaller the difference in daylight hours, and the further away it is the greater the range in daylight hours. This is due to Earth's inclination, where the higher latitudes get more affected throughout the year, while the lower latitudes have little to no difference.

Anchorage is the place that is furthest away from the Equator, thus it experiences the most daylight in summer, and the least daylight in winter, making a big difference between the two. Chicago comes in second and Melbourne third, while Quito has the smallest range of daylight because it is right next to the Equator, so the daylight is almost the same all year-round.

does the first nation apply to the U.S?

Answers

Answer:

The indigenous peoples of the Americas arrived in North America via the Bering Strait land bridge, which existed approximately 15,000 years ago between Siberia and Alaska, and probably also via a succession of sea migrations from Asia. 

In general , which nation has a colder climate, the United States or Canada

Answers

Answer:

Canada.

Explanation:

I used to live in Canada! It gets very cold in the winter. Canada is much further north than the USA, with the exception of Alaska, and this makes it much colder in the winter. In the summer, it's pretty mild, which is nice.

Please mark me as Brainliest if you feel this helped! :)

Which describes slate?

non-foliated
igneous
does not split into layers
grains arranged in parallel layers

Answers

Answer:

Grains arranged in parallel layers

Explanation:

I think the answer is D. grains arranged in parallel layers.

In what continent and hemisphere is China located?
Asia, Northern
Asia, Southern
Europe, Southern
Europe, Northern

Answers

Answer southern asia

Explanation:

The Little Dipper is a group of stars. During the night the Little Dipper appears to change positions in the sky. Which of these statements best explains why the Little Dipper appears to change positions in the night sky? * A. Earth rotates on its axis. B. Earth revolves around the stars. C. The Little Dipper moves around the sun. D. The stars in the Little Dipper move in the sky. 2. Which of these changes on Earth would be likely if Earth were farther from the sun? *

Answers

Answer:

1. A. Earth rotates on its axis

2. If the earth were closer to the sun, the temperature would be much higher.

Explanation:

As the night passes we can see that there is a certain movement of the stars. Regarding the bear, we can see that it appears in different positions in different perspectives. This happens due to the rotation of the earth in relation to its own axis. The smaller bear is too far from the earth for the proper movement it represents to be perceived, so it is the movement of the earth that provides the displacement sensation of the small bear.

If the earth were closer to the xol, we would see a big change in its temperature. The land would become much hotter, and it may even be impossible to keep bodies of water and living beings on its surface.

Answer: It’s A

Explanation:

Which type of government is an extreme form of totalitarianism?

a communist government
a fascist government
a monarchy
a socialist government

Answers

Answer:

Correct answer is a fascist government .

Explanation:

Although all mentioned options can be totalitarian regimes, it is important to stress out that fascist government are extreme because they are usually excluding everyone who is not belonging to certain group (usually national or religious).

The best examples are fascist regimes in Italy, Germany and Spain. In Germany for example who was not seen as fit by the Nazi government was excluded from society and public life, sometimes even worse thing would happen.

Answer:

B

Explanation:

What does samyak charitra mean in Jainism?
A.
right conduct
B.
right faith
C.
right knowledge
D.
right temper

Answers

Answer:

A

Explanation:

Samyak Darshana is Right Faith (Darshana means Faith)

Samyak Jnana is Right Knowledge (Jnana means Knowledge)

Samyak Charitra  is Right Conduct (Charitra means Conduct)

The land in Mexico City is sinking. What is the primary cause of this problem?
A. deforestation caused by cutting down trees
B. too much water being taken from underground aquifers
C. too many offices and towers being built in the city
D. dams being built upstream from Mexico City

Answers

Answer:

B. too much water being taken from underground aquifers

Answer:

b on edge

Explanation:

What is the highest elevation point in Europe

Answers

Answer:

18,510 ft

Explanation:

The mountain of Epbrus

Answer:

Elbrus 5,642meters Russia

Explanation:

can be found on google the highest point in Europe

Identify the Layer with the white square.​

Answers

The answer is lithosphere

Answer: Earth's crust or if you want a more specific answer the Lithosphere. Which is the crust and upper most solid layer of the mantle.

Explanation:

13. Which earthly phenomenon is represented by this image?
A. Magnetic shifting
B. Obliquity
C. Circumpolar current
D. Axial precession

Answers

Answer:

Explanation:

D?

Axial precession is represented by this image. Thus, option D is correct.

What is the earthly phenomenon?

The phenomena can be defined as the part where there is various activity that has happened. This could be with the relationship between sunrise, sunset, or thunder as well as temperature changes. There is various kind of phenomena that have been happening on the earth. Some may be man-made when the others will be natural.

Axial precession was to be made sure that the due to the forces that will be present in the gravitational forces. This was to make sure that there will be a continuous flow that will be present within the earthly phenomenon. This will generate a force that will cause the moment of the earth as a planet. Therefore, option D is correct.

Therefore, option D is correct.

Learn more about earthly phenomenon, here:

https://brainly.com/question/1287596

#SPJ2

If a test measures what it is designed to measure, then it has this.
Reliability
Cause and Effect
Bias
Validity

Answers

Validity
(Sociology quiz if i’m guessing? this should be correct)
D. I believe is the answer !!!

agriculture is the main source of food and raw materials explain​

Answers

Answer:

YES AGRICULTURE IS THE MAIN SOURCE OF FOOD AND RAW MATERIALS FOR INDUSTRIES. ... 70 PERCENT OF THE FOOD AND THE RAW MATERIALS IS MADE BY THE AGRICULTURE. THE FOOD WHICH IS GROWN IN AGRICULTURE IS HEALTHY AND HYGENIC THAN JUNK FOOD. AND THE RAW MATERIALS LIKE THE COTTON THEY ALL ARE GROWN IN THE AGRICULTURAL LANDS.

Answer:

i hope it helped u,

What ate all the rivers in North America and canda

Answers

Answer:

that sounds... dark.. unmmm

What are the four landforms that make up North America?

Answers

Answer:

the mountainous west, the Great Plains, the Canadian Shield and the Caribbean

Explanation:

hope this helps;)

which of the following has played the largest role in the spread of global culture?
a. family values
b. mass media and communication
c. community centers
d. education institutions
e. government policies

Answers

Answer:

I would say d or e

education is the reason the planet is this advanced but government politics is also carrying the country throughout legal and management purposes

Mass Media and communication have played the largest role in the spread of global culture. The correct option is B. People can now more easily learn about issues that transcend national boundaries because of enhanced travel and communications.

What is the meaning of global culture?

A combination of the words "global" and "culture," "global culture" refers to the entire way of life of the world's inhabitants as well as the cultural products that are produced and regularly consumed by people who reside in many different countries, not just one.

Cultural globalization is the process of ideas, meanings, and values being spread throughout the world in a way that strengthens and broadens social ties. Consumption of cultures that have been disseminated through the Internet, popular culture media, and foreign travel is a defining feature of this process.

Thus, the ideal option is B.

Learn more about the global culture here:

https://brainly.com/question/11390125

#SPJ5

What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas

Answers

the answer is oxygen gas

Answer:

A. Oxygen Gas

Explanation:

It's right on edge 2020

What's the difference between Climate and Weather?​

Answers

Whereas weather refers to short-term changes in the atmosphere, climate describes what the weather is like over a long period of time in a specific area. Different regions can have different climates.

Wind is BEST described as what is created when _____.

Answers

Answer:  

air moves from high to low pressure areas

Explanation:

**CHALLENGE** Find all of the missing angles - a, b, c, and d.

Answers

Answer:

a = 65°

d = 75°

b  = 25°

c = 25°

Explanation:

To solve the given problem, we are going to use different angle theorems.

Using these theorems, it would be possible to establish the relationship between the unknown and given angles.

A.

To solve for angle a, we are going to use the concept of angles on a straight line.

    The sum of angles on a straight line is 180°

 Therefore;

             60 + 55 + a  = 180

                   115 + a  = 180

                            a = 180 - 115

                            a = 65°

B. To solve for angle d, we are going to use the concept of right angles.

   Angle in a right angle is 90°;

            So:

                  d + 15 = 90

                   d = 90-15 = 75°

C. To find angle, b, since we know a, we use angles in a right angle triangle.

   Sum of angles in triangle  = 180°

       a + b + 90 = 180

            b = 180 - 90 -a

            b = 90 - 65 = 25°

D. Angles b and c are vertically opposite and can be said to be the same.

  So b = c

             c  =  25°

how can you remember the planets in order

Answers

Answer:

By using this mnemonic device

(this one is for nine planets, which means with Pluto)

My = Mercury

Very = Venus

Educated = Earth

Mother = Mars

Just = Jupiter

Served = Saturn

Us = Uranus

Nine = Neptune

Pizzas = Pluto

(this one is for eight planets, which means without Pluto)

My = Mercury

Very = Venus

Educated = Earth

Mother = Mars

Just = Jupiter

Served = Saturn

Us = Uranus

Nachos = Neptune

Answer:well... i don't really know how i remember, but here is a list:

1st is Mercury, the smallest planet.

2nd is Venus, which is not exactly earth's twin, even though many people say so.

3rd is earth, which is where we live on!

4th is mars, which is about 1/3 the size of earth.

Then, we go to the gas giants, which are all gas.(the others were rocky, like earth.

5th, which is Jupiter, is the biggest of the planets.

6th is Saturn, which has cool rings.

7th is Uranus, which is on it's side which means it looks like it's rolling around.

8th is Neptune, which has a TON of wind.

Explanation: try to remember by listening to the planet songs.(i know it sounds weird, but that's how i learned).

Analyze the map of Southern Africa below and answer the question that follows.

On the map above what is the name of the river at letter A?

A. The Nile river

B. The Zambezi river

C. The Congo River

D. The Malawi river

Please hurry thank u!

Answers

Answer:

C Is the answer

Explanation:

Your answer is C

it is
Other Questions
Which symbol and unit of measurement are used for resistance?symbol: R: unit :symbol: 0; unit: Rsymbol: R: unit osymbol: R: unit R Name 4 common types of small businesses in the New England colonies. What is (2n-9)-5(-2.4n+4)? which example involves a cell membrane receiving and sending messagesA. A large fish chasing its prey in the seaB. A protein forming a channel for an ionC. A water molecule moving inside a cellD. A tubeworm retreating from a predator 2 multiplied by 7 1/3 what is the importance of choosing a good quality of meat and poultry products? Letha has 7 coins in her hands totaling $0.50What are the coins?Letha has blank nickels and blank dimes. rotate the triangle through 180 about the origin Why did the new federal policy outlined in the Dawes Act fail as a reform measure? 4x + 2(2x - 3) = 8(x - 1) Based on "The Proper Place for Sports" by Theodore Roosevelt, write a thematic statement and write one rhetorical strategy that creates logos. Explain why it is effective for the author's argument. (1st edition students, complete the same activity for the "Transsexual Frogs" reading.) marketing costs include what? please be precise 30 POINTS How long will it take a person walking at 2.1 m/s to travel 13 m? Contextualizing The Code BookWrite four to five sentences explaining how the centralidea of The Code Book, that the information we shareover the Internet is not as protected as we think it is,relates to the context of your own life.? The area of a square shaped yard is 201.5 ft2. Which measurement is closest to the side length of this yard in feet? PLZZZ HELPL How did the Magna Carta influence thethinking of John Locke and otherEnlightenment Thinkers? Please explain youranswer. Slaves in ancient Rome could be, all of the following except _______ . a.owned by poor peoplec.mine workersb.gladiators d.government officialsPlease select the best answer from the choices providedABCD If a wave is traveling at a constant speed, and the frequency increases, what would happen to the wavelength? It would increaseIt would decrease.It would remain constant.It would drop to zero. Family members often look and behave alike. Follow the model to describe these families members If you are good at math please do this. IF U DONT DO IT AND PUT AN ANWSER SAYING YOU DONT KNOW IM REPORTING YOUR ACC