Alan walked 6.8 kilometers to his friend’s house. What is the distance in meters?

Answers

Answer 1

Answer:

6.8 kilometers= 6800 meters

Explanation:

1 kilometer= 1000 meters


Related Questions

the electric potential at point a is 150 v, at point b it is -250 v. what is the change of electric potential from points a to b, in volts?

Answers

The change in electric potential from points A to B is 400 V.

The change in electric potential (ΔV) from point A to point B can be calculated by subtracting the electric potential at point A (Va) from the electric potential at point B (Vb):

ΔV = Vb - Va

The electric potential at point A is 150 V, and the electric potential at point B is -250 V. The difference between these two values is -400 V. Therefore, the change in electric potential from points A to B is -400 V.

ΔV = V_B - V_A = -250 V - 150 V = -400 V

The negative sign indicates that the potential at point B is lower than the potential at point A.

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The dimensional formula for specific latent heat is​

Answers

Answer:

The dimensional formula for specific latent heat is L²/T²

Explanation:

The unit of specific latent heat is J/kg

The voltage between two points in a circuit is 5 V. If the resistance between
the points is 80 s2, what is the current, according to Ohm's law?
O A. 85.0 A
O B. 0.063 A
O C. 400 A
O D. 16.0 A

Answers

Answer:

B

Explanation:

i worked it out on a diffrent sheet so its hard to explain

The current, according to Ohm's law if, if The voltage between two points in a circuit is 5 V and the resistance between the points is 80 ohms, is 0.063 A so, option B is correct.

What is current?

Electric currents can be created by the movement of any electric charge carriers, including ions (atoms that have gained or lost one or more electrons), holes, or subatomic charged particles (such electrons with a negative charge or protons with a positive charge) (electron deficiencies that may be thought of as positive particles).

Given:

The voltage between two points in a circuit is 5 V,

If the resistance between the points is 80 ohms,

Calculate the current using Ohm's law as shown below,

Current = The voltage between two points / the resistance between the points

Current = 5 / 80

Current = 0.0625

Current = 0.063 A,

Thus, the current according to Ohm's law is 0.063 A.

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Read the scenario below and answer the question that follows. After a long day of being nice to impolite customers at the restaurant where she works, Marisa comes home and unwinds by playing several hours of a violent video game. When she is finished playing, she feels a little better about all of the times she had to endure the rudeness of her customers and couldn't say what she was thinking. A psychologist would say that she enjoys the game because it acts as a __________. A. Catharsis B. Physiological arousal C. Maladaptive emotion D. Verbal outburst.

Answers

Answer:

A psychologist would say that Marisa enjoys the game because it acts as a catharsis.

Explanation:

Catharsis refers to the release of pent-up emotions or tension through a particular activity or experience. In this case, playing the violent video game serves as a cathartic outlet for Marisa's frustrations and suppressed emotions resulting from dealing with impolite customers at work. By engaging in the game, she can release or alleviate her negative feelings in a simulated environment, providing a sense of relief or satisfaction.

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Estimate the magnitude of the magnetic field at ground level generated by an overhead AC power line service drop connecting a single home to a utility pole.

Answers

Answer:

Explanation:

Magnetic field due to current carrying wire at a distance r from the  wire is

\(B=\frac{\mu_0I}{2r}---(1)\)

In our case

\(I=\frac{I_0}{2}\)

where,

I₀ = max current or peak current

and r = h (where h is the height of power line)

\(\therefore B=\frac{\mu (I_0/2)}{2h} \\\\=\frac{\mu_0 I_0}{4h} ----(2)\)

put

h ≈ 370m

I₀ ≈ 3KA

\(B= \frac{(1.26*10^-^6)(3*10^3)}{4*(370)} \\\\=2.5*10^-^6 T\)

A 36 kg wagon is accelerated across a level surface at 0.9 m/s ^ 2 What net force in Newtons that acts on the wagon ?

Answers

Answer:

32.4 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 36 kg

acceleration = 0.9 m/s²

We have

force = 36 × 0.9 = 32.4

We have the final answer as

32.4 N

Hope this helps you

Which three things are related according to Newton's second law? force, mass, and acceleration force, matter, and acceleration force, motion, and acceleration force, weight, and acceleration​

Answers

Answer:

Force mass and acceleration

Explanation:

An engineer wants to double the water supply reserve and makes a tank 1.26 times as big as the old one in linear dimension, and the diameter of the legs is 1.41 times as large. Is this big enough?

Answers

Answer:

Yes, it would be enough.

Explanation:

The volume of the tank (cylinder tank) is given by the following equation:

\(V_{initial}=\pi (\frac{D}{2})^{2}h\)

Where:

D is the diameter of the tank

h is the height of the tank

Now, the engineer makes a tank 1.26 times as big in heigh and 1.41 times as large with respect to diameter, then the new volume of this tank will be:

\(V_{new}=\pi (\frac{1.41D}{2})^{2}1.26h\)    

\(V_{new}=1.41^2*1.26\pi (\frac{D}{2})^{2}h\)

\(V_{new}=2.51\pi (\frac{D}{2})^{2}h\)

in terms of the initial volume:

\(V_{new}=2.51V_{initial}\)

Which means that the volume of the water could be doubled.

I hope it helps you!

PLEASE HELP ME THIS IS VERY IMPORTANT!!!!!!!!!!!!! 20 points and I will give brainlyest
The diagram below shows a portion of the rock cycle.

Diagram of the rock cycle including 4 boxes labeled A, B, C, and D. There is an arrow labeled burial cementation extending from underwater sediment to box A. There is an arrow labeled deep burial, heating and pressure extending from underwater sediment to box B. There is an arrow labeled melting connecting box B to box D. There is an arrow labeled slow crystallization connecting box D to box C.

At what location in the diagram is granite most likely formed? (4 points)

Group of answer choices

Location A

Location B

Location C

Location D

Answers

Answer: I believe it’s location D. Or whichever is the location of slow crystallization.

Explanation: Slow crystallization of magma forms granite. Hope this helps. :)

Answer:

D

Explanation:

Identify the equation you would use to calculate power if you know the following quantities.
work and time
force, distance, and time
time and change in energy
force and velocity

Answers

Power is defined as the rate of change of work done.

The quantity of energy transferred or transformed per unit of time is known as power.

The equations for calculating the power of an object are,

Power,

P = W/t                where W is the work done and t is the time.

P = F(d/t)             where F is the force, d is the distance.

P = ΔE/t               where ΔE is the change in energy.

P = Fv                  where v is the velocity.

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for a given force, if the mass of the object is doubled, its acceleration becomes ??

Answers

Force = Mass . Accelaration

f=ma

force is directly proportional to mass and accelaration

therefore when mass of the object is doubled, the accelaration would be halved

since

a=f/m

the team monitoring a space probe exploring the outer solar system finds that radio trasmissions from the probe take 4.00 hours to reach earth. how distant (in meters) is the probe?

Answers

The space probe is at a distance of 4.32 x 10¹² meters away from Earth.

A space probe exploring the outer solar system is a celestial object that is flying into space to investigate the outer space of the solar system.

To calculate the distance of the space probe from Earth, we'll use the speed of light and the time it takes for the radio transmissions to reach Earth.


Step 1: Determine the speed of light
The speed of light in a vacuum is approximately 3.00 x 10⁸ meters per second (m/s).

Step 2: Convert the time taken for transmissions to reach Earth into seconds
The time taken for transmissions to reach Earth is given as 4.00 hours. To convert this into seconds, multiply by the number of seconds in an hour:
4.00 hours x 3600 seconds/hour = 14400 seconds

Step 3: Calculate the distance between the probe and Earth
Now that we have the time taken for the transmissions to reach Earth in seconds and the speed of light, we can calculate the distance. Use the formula:

Distance = Speed x Time

Substitute the values we've found:
Distance = (3.00 x 10⁸ m/s) x (14400 s)
Distance = 4.32 x 10¹² meters

So, the space probe is approximately 4.32 x 10¹² meters away from Earth.

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what force Pushes up on an airplane ?

Answers

Lift

Explanation:

As it flies, a plane is in the center of four forces. Lift (upward force) and thrust (forward push, provided by a propeller) get a plane into the air. Gravity and drag (air resistance, which is friction caused by air rubbing against the plane) try to pull the plane down and slow its speed.

hope it helps

the ultraviolet radiations in the stratosphere are absorbed by:

Answers

The ultraviolet (UV) radiations in the stratosphere are primarily absorbed by a layer of gas called the ozone layer.

The ozone (O3) molecules in the ozone layer have the ability to absorb UV radiation, particularly in the UV-C and most of the UV-B regions of the electromagnetic spectrum. When UV radiation interacts with ozone molecules, it can cause the breaking and reformation of ozone bonds, resulting in the absorption of UV energy.

This absorption process is important because it prevents a significant amount of UV radiation from reaching the Earth's surface. It acts as a protective shield against harmful UV rays that can have detrimental effects on living organisms, including increased risk of skin cancer, cataracts, and damage to marine ecosystems.

It's important to note that not all UV radiation is absorbed by the ozone layer. Some UV-B and a majority of UV-A radiation reach the Earth's surface, but they are less harmful compared to the shorter wavelength UV-C radiation that is almost entirely absorbed by the ozone layer.

Hence, The ultraviolet (UV) radiations in the stratosphere are primarily absorbed by a layer of gas called the ozone layer.

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Which statement best explains why the atomic theory developed efficiently?
A- scientists ignored all previous knowledge about atoms.
B- scientists had used creativity and The scientific method in their investigations.
C- scientists had used the philosophical viewpoint as a method of investigation.
D- scientists rarely repeated experiments to make sure the results were correct.

Answers

Answer:

I think its B but if not then its D

Explanation:

Answer:

b

Explanation:

I need help with this school work

I need help with this school work

Answers

Answer:

•battery

•Generator

•flywhell

•crank

Explanation:

the persons energy comes from his/her body that he/she gain from the food she/he eats

HELP PLSSS
What is the momentum of A 200 kg shark swimming at 15 m/s? |

Answers

Answer:

3000 Kg.m/s

Explanation:

From the question given above, the following data were obtained:

Mass (m) of shark = 200 Kg.

Velocity (v) of shark = 15 m/s.

Momentum of shark =..?

The momentum of an object is simply defined as the product of the mass and velocity of the object. Mathematically, it is expressed as:

Momentum = mass (m) × velocity (v)

With the above formula, we can obtain the momentum of the shark as follow:

Mass (m) of shark = 200 Kg.

Velocity (v) of shark = 15 m/s.

Momentum of shark =..?

Momentum = mass (m) × velocity (v)

Momentum of shark = 200 × 15

Momentum of shark = 3000 Kg.m/s

Therefore, the momentum of the shark is 3000 Kg.m/s.

TRUE OR FALSE. When non-conservative forces are present, the amount of work done increases with the length of the path.

Answers

Answer:

True

Explanation:

When non-conservative forces are present, the amount of work done increases with the length of the path, this is true because, when a force is applied, the force does when and the non-conservative forces also do work. Since the non-conservative force work against the force  applied, this tend to increase the net work done by the applied force to compensate for the loss in energy due to the work done by the non-conservative forces.

Astronomers have found large quantities of cold, neutral hydrogen gas in our galaxy. How is this gas distributed? A. it is located only near stars, and not in the large empty spaces between them B. it is found mostly in a flat layer extending throughout the disk of our galaxy C. it is found in a spherical distribution about 100 LY in size, centered on the Sun
D. it is found only in the outer regions of the galaxy, where we are, and not in the central areas E. we don't know its distribution, since such cold hydrogen cannot be observed with the techniques we have at our disposal today

Answers

Cold, neutral hydrogen gas in our galaxy is primarily found in a flat layer extending throughout the disk of our galaxy.

So, the correct answer is B.

This gas distribution is not restricted to areas near stars or large empty spaces between them. It is also not concentrated solely in a spherical region around the Sun or limited to the outer regions of the galaxy.

Modern astronomical techniques, such as radio telescopes, have enabled us to observe and map the distribution of this cold hydrogen gas, giving us a better understanding of its role in the structure and evolution of the Milky Way.

Hence, the answer of the question is B.

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A pendulum is released from a height of 0.65 m above its equilibrium position. What is the
maximum speed of the pendulum bob? What is the speed of the pendulum bob when it has fallen
0.25 m from its highest point?

Answers

Answer:

1/2 m v^2 = m g h       speed of pendulum related to change in potential energy

v^2 = 2 g h

v^2 = 2 * 9.8 m/s^2 * .65 m = 12.7 m^2 / s^2

v = 3.57        max speed attainable by pendulum

v^2 = 2 g * .25       speed attainable when falling thru .25 m

v^2 = 4.9 m^2/s^2

v = 2.21 m/s speed of pendulum after falling thru .25 m

a car is driving down a road due south at a constant speed of 55 mph. What is the cars acceleration?

Answers

The car is going 55 mph

A baseball player hits a 140 g baseball with a force of 2800 N. What is the
acceleration of the ball as it leaves the bat?
A. 0.050 m/s2
B. 20 m/s2
C. 390 m/s2
D. 20,000 m/s2

Answers

B because 2800 divide by 40 is 20

the increase in boiling point temperature due to the presence of a nonvolatile solvent is called boiling point ______.

Answers

Explanation:

Quite simply, this is boiling point elevation

The increase in boiling point temperature due to the presence of a nonvolatile solvent is called boiling point elevation. This phenomenon occurs because the addition of a nonvolatile solute to a solvent raises the boiling point of the resulting solution. This is because the solute particles disrupt the crystal lattice of the solvent, making it more difficult for the solvent molecules to escape into the vapor phase.

As a result, the boiling point of the solution is higher than that of the pure solvent. The magnitude of the boiling point elevation is proportional to the concentration of the solute particles in the solution. This property has important practical applications in fields such as chemistry, biology, and engineering.

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(ii) Let R be a rotation and S be a reflection of the euclidean plane E. Give a precise deion of RS, relating it to the classification of isometries of E². Be careful of special cases.

Answers

RS is a composition of rotation and reflection in the Euclidean plane E². The precise description of RS depends on the specific properties of the rotation R and reflection S.

In general, if R and S have the same axis or line of symmetry, the composition RS results in a translation. If R and S have intersecting lines of symmetry, RS yields a glide reflection. If R and S have perpendicular lines of symmetry, RS produces a rotation.

It is important to consider special cases, such as parallel lines of symmetry, coinciding axes, or perpendicular lines of reflection, as they may lead to different outcomes. The classification of isometries in E² involves understanding how rotations and reflections combine to create different transformations in the plane.

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With light microscopy, if the objective lens (lens closest to the specimen) magnifies 40-fold, and the eyepiece lens magnifies 10-fold, the final magnification will be:_________

Answers

The final magnification will be 400-fold or 400 times the original size of the object.

For magnifying smaller objects, a compound microscope is used.

A compound microscope consists of an objective and an eyepiece, whose diagram is shown in the adjoining image.

The lens  near  the object is called an objective and the other one is the eyepiece.

Let the magnification of the objective be m1

Let the magnification of the eyepiece be m2

The final magnification by the microscope, M, will be

M = m1 x m2

Putting the values in the above equation

M = 40 x 10

M= 400

Thus, the final magnification will be 400-fold or 400 times the original size of the object.

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With light microscopy, if the objective lens (lens closest to the specimen) magnifies 40-fold, and the

how do newtons first and third laws describe the motion of an object?

Answers

Answer:

Newton's laws of motion relate an object's motion to the forces acting on it.

Explanation:

In the first law, an object will not change its motion unless a force acts on it. ... In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

In this section please include the if then statements you develop during your lab activity these statement reflect your predicted outcomes for the experience

Answers

Answer:

but for which activity donu need the answer and mention the question clearly

Eclipses occur because the Moon?
A
does not create its own light and only reflects light from the Sun.
o
does not create its own light and only reflects the light from Earth.
o
с
creates its own light, which is blocked by the Sun during an eclipse.
creates its own light, which is blocked by Earth during an eclipse.

Answers

I’m just here typing don’t mind me

Answer:

с

creates its own light, which is blocked by the Sun during an eclipse.

Explanation:

might not be right but its what i remember

please answer soon
a car is traveling along the highway at a constant velocity, what must be true about all the forces acting on the car?

Answers

equal to the force of friction exerted upon the car . ( how this is right )

An empty space defined by its surround is known as ________ shape.

Answers

The answer should be ‘positives.’
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