A biker travels at an average speed of 18 km/h along a 0.30-km straight segment of a bike path. How much time ( in hours)does the biker take to travel this segment?

Answers

Answer 1

Answer:

The biker will take "0.016 hours".

Explanation:

The given values are:

Average speed,

[tex]V_{avg}[/tex] = 18 km/h

Distance,

d = 0.30 km

As we know,

⇒  [tex]V_{avg}=\frac{d}{t}[/tex]

or,

⇒  [tex]t=\frac{d}{V_{avg}}[/tex]

On substituting the values in the above formula, we get

⇒     [tex]=\frac{0.30 \ km}{18 \ km/h}[/tex]

⇒     [tex]=0.016 \ hours[/tex]


Related Questions

What is the velocity of a wave that has a frequency of 200 Hz and a
wavelength of 0.5m?

Answers

Answer:

No idea now

Explanation:

wil get back to you in few minutes

Mickey had three substances. He hit each of them with a hammer. A red
substance was malleable and easily flattened. A white crystal cracked but did
not break. A silver substance flattened but did not crack. Which two
statements could be true?
A. The silver substance is a metal,
B. The red substance is ionic,
C. The silver substance is ionic.
I D. The white substance is ionic.

Answers

Answer:

A & D

Explanation:

Took the test already

The two statements that could be true on the basis of the information given in the question are as follows:

The silver substance is metal.The white substance is ionic.

Thus, the correct options are A and D.

What are the properties of metal?

The properties of the metal are described as follows:

They are good conductors of heat and electricity.They possess high melting points and high density. They are malleable, ductile, and lustrous in nature. They are generally hard as compared to other elements.

The silver substance is metal because it is flattened into thin sheets but did not crack. This shows the property of malleability of metals. The white substance is ionic because it is cracked but did not break. It shows that ionic compounds are tough to break.

A red substance is also metal but does not express in any options.

Therefore, the correct options for this question are A and D.

To learn more about the Properties of metal, refer to the link:

https://brainly.com/question/1301107

#SPJ5

As time goes on, the ENTROPY in a closed system should increase. This is because of which Law?

A) Conservation of Energy
B) Conservation of Momentum
C) 1st Law of Thermodynamics
D) 2nd Law of Thermodynamics
E) None of these

Answers

Answer:

The answer is D

The second law of thermodynamics

2 t of ferrous scrap at a temperature of 20 degrees is heated to the melting point and melted. How much to consume?

Answers

Answer

Calculate the amount of heat needed to melt 2.00 kg of iron at its melting point (1809 K), given that: ?Hfus = 13.80

In terms of activation energy, why does increasing the temperature of a reaction make it proceed more quickly? A. Increasing the temperature increases how many reactant molecules reach activation energy. B. Increasing the temperature reduces the activation energy C. Increasing the temperature increases the potential energy of the reactants D. Increasing the temperature makes the molecules move slower.​

Answers

Answer:

A. Increasing the temperature increases how many reactant molecules reach activation energy.

Explanation:

The correct statement is " Increasing the temperature increases how many reactant molecules reach activation energy"

What is activation energy?

"Activation energy is the minimum amount of energy that must be provided to molecules /atoms of the compounds/ elements to result in a chemical reaction."

When temperature increases the kinetic energy of the molecules increases hence more reactant molecules reach the activation energy.

So it can be concluded that by Increasing the temperature increases how many reactant molecules reach activation energy.

Know more on activation energy here

https://brainly.com/question/11334504

#SPJ2.

F. A 50. A resistor (R2), and unknown resistor R2, a 120 Volt source, and an ammeter are connected in a
complete circuit. The ammeter reads 0.50 ampere (current).
R1
a. Determine the resistance of Rz.
R2

Answers

Complete question is;

A 50.-ohm resistor, an unknown resistor R, a 120-volt source, and an ammeter are connected in a complete circuit. The ammeter reads 0.50 ampere.

A) Calculate the equivalent resistance of the circuit shown.

B) Determine the resistance of resistor R shown in the diagram.

Answer:

A) R_eq = 240 Ω

B) R = 190 Ω

Explanation:

A) To get the equivalent resistance, we will use the formula;

R = V/I

Where;

V is Voltage

I is current

R is equivalent resistance

From the question, V = 120 V and I = 0.5A

Thus;

R_eq = 120/0.5

R_eq = 240 Ω

B) From the image, we see that the resistors are connected in series.

Formula for resistors in series is;

R = R1 + R2 +..... Rn

Thus;

240 = 50 + R

R = 240 - 50

R = 190 Ω

A) The equivalent resistance of the circuit shown will be  240 Ω.

B) The resistance of resistor R will be 190 Ω

What is resistance?

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.

The given data in the problem is;

R is the resistance = 50.-ohm

v is the voltage = 120-volt source

I is the value of the current =0.50 ampere.

A) The equivalent resistance of the circuit shown will be  240 Ω.

According to ohm's law

[tex]\rm R= \frac{V}{I} \\\\ \rm R= \frac{120}{0.5} \\\\ \rm R=240 \ ohm[/tex]

Hence the equivalent resistance of the circuit shown will be 240 Ω.

B) The resistance of resistor R will be 190 Ω

The given resistors are connected in the series;

R = R1 + R2 +..... Rn

240 = 50 + R

R = 240 - 50

R = 190 Ω

Hence the resistance of resistor R will be 190 Ω

To learn more about the resistance refer to the link;

https://brainly.com/question/20708652

Explain the melting of a solid in terms of molecules and energy​

Answers

When you melt a solid the heat creates energy, when you heat up molecules they will move quicker and start to somewhat break apart into a liquid structure.

Heat generates energy when you melt a solid; as you heat up molecules, they move faster and begin to break apart into a liquid form.

What is the melting point?

The melting point is the point at which a substance transforms from a solid to a liquid.

The melting point of a liquid is the temperature at which it transforms from a solid to a liquid at atmospheric pressure. This is the point where the liquid and solid phases are in balance.

Heat generates energy when you melt a solid; as you heat up molecules, they move faster and begin to break apart into a liquid form.

The kinetic energy of the molecule is due to the movement of the molecule as the temperature of the system increases the melting point comes closer.

As the temperature increases the kinetic energy of the molecule increases.

Hence the energy, melting point, and temperature relatively affect each other.

To learn more about the melting point refer to the link;

https://brainly.com/question/12499685

To learn more about the melting refer to the link;

https://brainly.com/question/12499685

A 24 kg object, initially moving at 20 m/s, is slowed by an applied force of 20 N to a final velocity of 16 m/s. How much time did this take?

Answers

Answer:

Explanation:

Turtle ba lls

Answer:

4.8 seconds

Explanation:

Ft=change in momentum

Initial momentum=mv=24*20=480 kg*m/s

new momentum=mv=24*16=384 kg*m/s

change in momentum=96 kg*m/s

Ft=change in momentum

20(t)=96

t=4.8 seconds!

If a car used 250,000 W of power to complete a race in 12 s, how much work did the car do?

Answers

Answer:

3,000,000 Joules!

Explanation:

power=work/t

250000=work/12

work=3,000,000 Joules

How do the particles in a Longitudinal Wave move?

A) Parallel to the direction of the wave
B) Perpendicular to the direction of the wave
C) Particles do not move
D) The particle is the wave (wave packet)

Answers

Explanation:

In a longitudinal wave the particle displacement is parallel to the direction of wave propagation. The particles do not move down the tube with the wave; they simply oscillate back and forth about their individual equilibrium positions. Pick a single particle and watch its motion.

Which phrase best describes a machine?

any device that makes work easier
any device that moves an object
any device that has multiple parts
any device that uses energy

Answers

I would say that a machine is a device/apparatus that uses mechanical power and has multiple parts.

Each bat can produce different frequencies of ultrasound. Explain why this is useful if there are many bats hunting together.

Answers

Answer: Although low frequency sound travels further than high-frequency sound, calls at higher frequencies give the bats more detailed information--such as size, range, position, speed and direction of a prey's flight. Thus, these sounds are used more often.

Explanation:

PLS ANSWER FAST WILL GIVE BRAINLY!!!


In order for a roller coaster to work, why does the hill the cart climbs need to be higher than the top of the loop?

Answers

Answer:

The concept of potential energy, often referred to as energy of position, is very simple: As the coaster gets higher in the air, gravity can pull it down a greater distance. ... The potential energy you build going up the hill can be released as kinetic energy — the energy of motion that takes you down the hill.

Potential energy, also known as energy of position, is a pretty straightforward idea. As the roller coaster rises in the air, gravity has a greater ability to pull it down.

What does the hill the cart climbs need?

An easy illustration involves a stopped car at the summit of a hill. The car drives faster as it goes down the hill, which results in an increase in kinetic energy and a decrease in potential energy. The vehicle changes kinetic energy into potential energy as it ascends the hill.

They are higher up at the top of the hill, thus they have more potential energy. Moving down a slope transforms potential energy into kinetic energy, while moving up a hill transforms kinetic energy into potential energy.

Therefore, You can release the potential energy you accumulate while climbing a hill as kinetic energy, which is the energy of motion that propels you down the hill.

Learn more about cart here:

https://brainly.com/question/7726236

#SPJ2

The results from Rutherford's alpha particle scattering experiment led to
the nuclear model. Alpha particles were fired at a thin film of gold at a
speed of 7% of the speed of light. Determine the speed of the alpha
particles. Speed of light = 300,000,000 m/s

Answers

Answer:

Explanation:

Can you help me in mathematics

Why is the Greenland ice sheet so important to understanding earths past climate?

Answers

Answer:

The ice sheet as a record of past climates

Scientists have, using those ice cores, obtained information on (proxies for) temperature, ocean volume, precipitation, chemistry and gas composition of the lower atmosphere, volcanic eruptions, solar variability, sea-surface productivity, desert extent and forest fires.

Answer:

The Greenland ice sheet is the last remaining ice sheet from the most recent ice age. Therefore, it can tell scientists about the climate conditions of that period.

Explanation:

What is 8 x 10-2 in ordinary form?​

Answers

78 is the answer hope it helps

The answer is 0.08 have a great day!

when you blow across the top of a soda bottle, it acts like a closed pipe. If the inside of the bottle is 0.150 m long, what is the fundamental frequency you hear?

(speed of sound=343 m/s)
(unit=hz)

Answers

Answer:

The new fundamental frequency will be 598.7Hz. The length of the soda bottle is 0.173 meters. Thus, the new fundamental frequency is 598.7Hz.

Explanation:

Please give me brainlist

Answer:2860 hz

Explanation:

Trust me

True or false? If two components are connected in series, the current through one component will
always be the same as the current through the other.​

Answers

the answer is ( True ) .

the current is the same in series circuits .

Science Question: why do astronauts wear organge suits vs white suits

Follow answer please...

Answers

When they first launch though, astronauts wear orange instead, since the bright color makes it easier for them to be spotted and rescued in an emergency.
yes what they said :3

If the force exerted by a man is halved and the distance is multiplied by four, by which factor does the work change ?

A. Increase by a factor of 8
B. Decrease by a factor of 2
C. Increase by a factor of 2
D. Increase by a factor of 4

Answers

increase factor by 8 thousands

A flight distance from philadelphia to cancun is 1469 miles.the estimated flight time is 3.25 hours.What is the avarage speeede of the plane in miles per hour(number and units)?

Answers

Answer:

1469 miles /3.25 hours = 452 miles per hours

Explanation:

divide distance by the time it takes to get there

When drawing a vector, you should represent the magnitude of the vector by the length of the arrow. A. True O B. False​

Answers

Answer: A. True

Explanation:

Answer:

A. True

Explanation:

A vector in this sense is a thing that has both magnitude (length) and direction.

Say you're walking at a speed of 5 miles per hour. If you keep walking in a straight line, then in two hours you will have walked 10 miles.

This doesn't give any information about where you started or any information about where you ended up after those 2 hours.

This is because "speed" is a scalar. It's a number with no associated geometry. It's just a magnitude. It's the magnitude of velocity.

Velocity is a vector.

Need help with this one question!​

Answers

Answer:

Actual Mechanical Advantage

Explanation:

AMA=mg/F(applied)

I think the following ratio is called, “actual mechanical advantage.”

Marcus found that the weight of a rock on Earth is 22.5 newtons. He knows that the gravity on Saturn is 0.93 times the gravity on Earth. What would the weight of this rock be on Saturn?

Answers

Answer:

The weight of the rock on Saturn would be 21.375

Explanation:

Since the weight on Saturn is 0.93 times the weight on Earth you would multiply 22.5 x0.93. This bring you too 21.375

How the choice of building materials and techniques can help them cool down faster, after heating up.

Answers

Answer:

The choice of building materials and techniques can help them cool down faster, after heating up is explained below in brief details.

Explanation:

Building materials

Buildings that are composed of rock, bricks, or pavement, or inserted into the territory, can seem cooler thanks to the great "thermal mass" of these elements – that is, their capability to assimilate and discharge heat gently, thereby softening temperatures over time, producing daytime cooler and night-time warmer.

For an object falling at the terminal velocity, list all the forces (magnitude and direction) acting it?

Answers

Answer:

Three stages of falling

There are three stages as an object falls through a fluid:

at the start, the object accelerates downwards due to the force of gravity

as the object's speed increases, frictional forces such as air resistance or drag increase

at terminal velocity, the weight of the object due to gravity is balanced by the frictional forces, and the resultant force is zero

Explanation:

what is true about a pseudoscientific

Answers

Answer:

C: it ignores parts of the method within an investigation

Are acceleration and mass proportional or inversely proportional values?

Answers

Answer:

acceleration and mass are inversely proportional values

Explanation:

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Mass is inversely proportional to acceleration.

hopefully i was able to help.

Explain which components could be used to switch a heater and a light on in a hospital incubator

Answers

a switch    

ssdgfsddgsgbsssdgfsddgsgbsssdgfsddgsgbs

What is the equation used to find the image distance? Identify each variable

Answers

Answer:i f I understand your question correctly, the formula is as follows:

Note: The sign convention is based on distances which are measured from the lens to the object or image of regard. Distances measured in the same direction the light is moving are positive and distances measured in the opposite direction the light is moving are negative.

The measurements are in meters

The “ambient” index of refraction is assumed to be n=1.00

The inverse of the object distance plus the dioptric power of the lens (convex—positive and concave—negative) equals the inverse of the image distance.

Or 1/Od +Dl =1/Id

Please note, it has been a long time since I thought about teaching this concept to students.

Hope this helps have a awesome day/night❤️✨

Explanation:

Other Questions
3/8 - 1/4x =1/2 x - 3/4please help solve for x and show work find x: 9(2x+1)=81(3x+2) Faite cinq phrases avec chacum de ces verbes suivants au temps present de l'indicatif.1. S'apeller2. Etre if triangle def is similar to triangle jkl find kl Kathryn and karina are neighbours and they are each planning rosebushes and butterfly plants in their yard. They bought their plants from the same store. Catherine spent $111 on four rosebushes and seven butterfly plants. Karina spent $132 on five rosebushes and eat butterfly plants. What is the cost of one rosebush and the cost of one butterfly plant? A rosebush : $10, butterfly plant $7B Rose bush: $9 ,butterfly plant $12 C rosebush; 12 , butterfly plant $9D rose bush : $14, butterfly plant $7 B. What is the distance between the two troughs? PLEASE HELP ME I NEED THE ANSWER FAST. hello help please ill mark brainliest!!! please help The diagram below shows a ciliated cell from the lining of the airway.Which of the following states its function?Required to answer. Single choice.(1 Point)A)it is the place where diffusion of gases take placeB)it moves mucus and sweeps dust from lungsC)it secretes trypsinPls tell meeee quickkk An inactive student wants to become more physically active but does not think he has the time. What is the most effective thing he can do to start making physical fitness a priority? You are at a restaurant and the check comes to a total of $20. If you want to leave a 20% tip, how much total money should you pay, to the nearest cent? 4. What expression represents the width of the room? How would you define theme? Give an example. Daniel has dinner at a restaurant and the cost of his meal is $28.00. Because of the service, he wants to leave a 20% tip. What is his total bill including tip? Which condition would cause an increase in the salinity of ocean water?thawing of glaciershigh rates of evaporationcold weathera river flowing into the sea What are basic ( natural rights ) ?A) Rights that are only given to the government officials.B) Rights that are only given to citizens of a nation.C) Rights all people possess simply because they are humanD) None of the above 358. Now consider the family of lines ax + by = c such that a, b and c are consecutive multiplesof each other. What would that mean? Give some examples of such lines in this family and graphthem. What do you notice or wonder? what is the gradient of the following shape Why is the right to a "speedy" trial important? HELP! FOR LAW STUDIES. 100 POINTS!!!"The most valuable end of government is the liberty of its inhabitants. No possible advantages can compensate for the loss of this privilege."Patrick HenryFrom what you know about the Constitution, do you agree with Patrick Henry's statement? Why or why not?Patrick Henry was a leader of the Anti-Federalists. How does this quote support their position on the Constitution?How does Henry's statement reflect the idea of social contract? How does the idea of social contract protect people's natural and individual rights?What is the current ruling on drug testing minors in public schools? Do you agree or disagree?