What is your example of a physical change?

Answers

Answer 1

Answer:

ductility

Explanation

flattening of a metal to form a sheet


Related Questions

Which description best contrasts herbivores and carnivores? Herbivores have specialized teeth and digestive systems, whereas carnivores require no diet specialization. Herbivores are able to digest food with relative ease, whereas carnivores have to soften food with bacteria. Herbivores work harder to find and eat food, whereas carnivores are most often scavengers that expel little energy. Herbivores eat frequently in order to sustain nutrients, whereas carnivores eat more nutritious meals less often.

Answers

Answer:

Herbivores have special teeth and digestive enzymes to digest their food while carnivores do not have digestive enzymes

What happens to the particles when the temperature decreases?

- move more/faster
- move less/slower
- nothing changes

Answers

Answer:

move less/slower

Explanation:

How much force is required to accelerate a 15-passenger van weighing 1955 kg at a rate of 26.82 m/s2?

Answers

Answer:

52433.1

Explanation: you just multiply the numbers

Taking into account the Newton's second law, a force of 52,433.1 N is required.

Newton's second law, called the fundamental law or fundamental principle of dynamics, states that a body accelerates if a force is applied to it.

So, Newton's second law defines the relationship between force and acceleration mathematically. The acceleration of a body is proportional to the net force applied to it and inversely proportional to its mass. That is, if you apply a greater force, the body increases its acceleration.

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= 1955 kg a= 26.82 m/s²

Replacing:

F= 1955 kg × 26.82 m/s²

Solving:

F= 52433.1 N

Finally, a force of 52,433.1 N is required.

Learn more about the Newton's second law:

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Suppose that it takes 0.6 seconds for a mass on a spring to move from its
highest position to its lowest position. What is the period of the spring?

0.3 seconds
0.6 seconds
1.2 seconds
2.4 seconds

Answers

Answer:

1.2

Explanation:


You are on a boat cruising at 10 m/s when you decide to accelerate at 5 m/s^2 until you reach a speed of 30 m/s.
How far did you travel during the acceleration

Answers

Answer:

Avg time (s) * Avg velocity (m/s) = Answer (m)


USE THE PICTURE THANKS WILL GIVE B WRONG ANSWER=report lol love ya

Answers

Answer:

I would have to say B THe su would rise in the west and set in the east But this is just a guess

Which of these organisms is connected to all other organisms in a food web?
carnivores
herbivores
scavengers
decomposers

Answers

Answer:

I want to say decomposers, because they break down plants that the herbivores eat, and they can also decompose the remains of a scavenger, herbivore, OR carnivore, that was killed and eaten by a carnivore, and maybe even found and eaten by a scavenger. I'm sorry if it's not correct, that's just what my brain has decided right now

Answer:

The answer is number 4. Decomposers

Explanation:

Hope this helps!!

The geese fly 23 m/s to the south when they migrate for the winter. Identify if this example is speed or velocity.

Answers

Answer:

Its velocity.

One difference between a solar flare and a CME is that a solar flare is composed of ___________, while a CME is composed of __________.

Answers

Answer:

magnetic energy (proton) and magnetic plasma.

Explanation:

The solar fare consists of bright light that occurs in various wavelengths and is observed at the surface. They are not as strong as compared to the coronal mass ejection or CME. The solar fares consist of 10²² joules, while the plasma is ejected from the solar corona and can be clearly seen from a distance. The Solar flares represent an atmospheric disturbance and plasms are the medium for the growth and development of solar flare and lead to solar activity.

How sunspot are formed ?

Answers

Answer:

Sunspots are magnetic in nature. They are the places ("active regions") where the Sun's magnetic field rises up from below the Sun's surface and those magnetic regions poke through. ... Sunspots are formed continuously as the Sun's magnetic field actively moves through the Sun.

A net force accelerates a 60 kilogram cart at a rate of 0.5 m/s². What is the magnitude of the force?

Answers

Answer:

13

Explanation:

34


If unbalanced forces act on an object, how will it move?
A.It will accelerate in the direction of the net force.
B.It will accelerate in the opposite direction of the net force.

Answers

a ! ! ! ! ! ! ! ! ! !

Answer:

A

Explanation:

____________ is maintaining stable conditions inside the body

Answers

The answer is Homeostasis

The price of a television was reduced from
$250 to $200. By what percent was the price
of the television reduced?

Answers

Answer:

20%

Explanation:

The percent that was reduced was atleast 20%.

need help due in 30 mins​

Answers

Answer:

1. v₂ = 12.43 m/s

2. I₁ = - 80 N.s

3. I₂ = 80 N.s

Explanation:

Consider the following data given in the question:

m₁ = mass of the Cart 1 = 16 kg

m₂ = mass of the Cart 2 = 7 kg

u₁ = velocity of cart 1 before collision = 4 m/s

u₂ = velocity of cart 2 before collision = 1 m/s

v₁ = velocity of cart 1 after collision = - 1 m/s

v₂ = velocity of cart 2 after collision = ?

1.

Applying the law of conservation of momentum:

[tex]m_{1}u_{1} + m_{2}u_{2} = m_{1}v_{1} + m_{2}v_{2}\\(16\ kg)(4\ m/s)+(7\ kg)(1\ m/s)=(16\ kg)(-1\ m/s)+(7\ kg)(v_{2})\\v_{2} = \frac{87\ kg.m/s}{7\ kg}[/tex]

v₂ = 12.43 m/s

2.

Impulse of cart 1 = I₁ = m₁(v₁ - u₁)

I₁ = (16 kg)(- 1 m/s - 4 m/s)

I₁ = - 80 N.s

3.

Impulse of cart 2 = I₂ = m₂(v₂ - u₂)

I₂ = (7 kg)(12.43 m/s - 1 m/s)

I₂ = 80 N.s

(b) The figure below shows a model train, travelling at speed , approaching a
buffer
model train
buffer
spring
The train, of mass 2.5 kg, is stopped by compressing a spring in the buffer.
After the train has stopped, the energy stored in the spring is 0.48 J.
Calculate the initial speed v of the train.


Answers

Answer:

0.62 m/s

Explanation:

Given that a model train, travelling at speed , approaching a buffer model train buffer spring

The train, of mass 2.5 kg, is stopped by compressing a spring in the buffer.

After the train has stopped, the energy stored in the spring is 0.48 J.

Calculate the initial speed v of the train

Solution

The total energy stored in the spring will be equal to the kinetic energy of the train.

That is,

1/2fe = 1/2mv^2

Substitutes the spring energy, and mass into the formula

0.48 = 1/2 × 2.5 × V^2

2.5V^2 = 0.96

V^2 = 0.96 / 2.5

V^2 = 0.384

V = sqrt ( 0.384 )

V = 0.62 m/s

Therefore, the initial velocity of the train is 0.62 metres per second.

define atmospheric pressure, prove that presence of atmospheric pressure with the help of an activity​

Answers

the pressure exerted by the atmospheric air is called atmospheric pressure

Do you think it is possible to control the magnetic properties of a magnet? Can a magnet be turned on and off? Explain your answer.

Answers

Answer:

Yes it is possible to control to some extent

Explanation:

Yes it is possible to control to some extent. Explanation: In general there are two types of magnets : permanent and temporary (electromagnets). ... On the other hand permanent magnet cannot be switched on and off but the magnetic properties can be altered event to an extent when it loses all its magnetic properties.

For an object to appear transparent, what interaction must occur between light
waves and the object they hit?

Answers

Answer:

called optically transparent.

Explanation:

Photons interact with an object by some combination of reflection, absorption and transmission. Some materials, such as plate glass and clean water, transmit much of the light that falls on them and reflect little of it; such materials are

please help me thank youuu !!!

Answers

Answer:

right

Explanation:

high temperature to low temperature

Heat flows from a hotter body to a colder body
Therefore towards right

If the resistance of a circuit is 3 ohms, and the voltage produced by the cell in the
circuit is 12 volts, what's the magnitude of the current?
0.25 amperes
09 amperes
36 amperes
4 amperes

Answers

Answer:

The magnitude of the current is 4A (amperes).

Explanation:

We can use [tex]V=IR[/tex], where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.

A such:

[tex]V=12\\I=\text{ ?}\\R=3\\\\\text{Solve for I}:\\12=3I\\3I=12\\I=\frac{12}{3}\\I=4\text{A}[/tex]

match the microscopes with their useable

Answers

Microscopes with life science and physics

Answer:

there is no question that I can use so sorry

Explanation:

but have a great day :D

A roadster undergoes a uniform acceleration of 7.5 m/s2. If the force causing the acceleration is 5560 N, what is the mass of the car?

Answers

Answer:

741.333

Explanation:

F = ma

so in order to find mass you must change the equation to

m = F/a

m = 5560/7.5

741.333 = 5560/7.5

The burning of wood in a campfire is which type of reaction?
A. Exothermic, because energy is absorbed from the surroundings
B. Endothermic, because energy is released to the surroundings
C. Exothermic, because energy is released to the surroundings
D. Endothermic, because energy is absorbed from the surroundings

Answers

The answer is C
Hope this help

A coin is dropped in a 15.0 m deep well.
A)How long does it take the coin to hit the surface of the water?

B)How much time would it take to hear the splash after dropping the coin if the speed of sound is 340. m/s?

Answers

Answer:

t = 1.75

t = 0.04

Explanation:

a)

For part 1 we want to use a kenamatic equation with constant acceleration:

X = 1/2*a*t^2

isolate time

t = sqrt(2X / a)

Plugin known variables. Acceleration is the force of gravity which is 9.8 m/s^2

t = sqrt(2*15m / 9.8m/s^2)

t = 1.75 s

b)

The speed of sound travels at a constant speed therefore we don't need acceleration and can use the equation:

v = d / t

isolate time

t = d / v

plug in known variables

t = 15m / 340m/s

t = 0.04 s

How do you know if you have all the forces needed for a FBD?

Answers

It’s so many FBD meaning be more specific so we can help you

WILL GIVE YOU WHAT EVER YOU WANT JUST HELP ME
Which of the following best compares the structures in protists and fungi that allow these organisms to explore their environment.

Question 2 options:

Protists and fungi move using cilia, flagella, and hyphae.




Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.




Protists move using hyphae. Some fungi move using cilia, and flagella.


Neither protists nor fungi have cilia, flagella, and hyphae. They obtain energy only if the food source moves by them.


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Answers

Answer:

Explanation:

Essential Knowledge

It is essential that the student be able to distinguish between specialized structures that allow protists and fungi to obtain energy and explore their environment.

Protists

Protists are organisms that are classified into the Kingdom Protista. Although there is a lot of variety within the protists, they do share some common characteristics.

● Protists are usually single celled organisms.

● Live in moist environments.

● Vary in the ways they move and obtain energy.

Protists obtain their energy in several ways.

● Animal-like protists ingest or absorb food after capturing or trapping it.

● Plant-like protists produce food through photosynthesis.

● Fungus-like protists obtain their food by external digestion either as decomposers or as parasites.

● Some protists have both autotrophic and heterotrophic characteristi

The one which best compares the structure in protists and fungi that allow these organism to explore their environment is option B. Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.

What are moving aids in protists and fungi ?

Protists are the eukaryotes that are not considered to be either fungi, animals, or plants. They are mainly tiny and unicellular. Many unicellular protists are motile and can move by employing flagella, cilia, or pseudopods, especially protozoans.

Cells that employ cilia for movement are typically referred to as ciliates, whereas those that use flagella are typically referred to as flagellates.

In marine, brackish, and freshwater reservoirs, hundreds of species of the ciliate genus Paramecium or flagellated Euglena can be found; the green alga Chlamydomonas is found in soil and freshwater all over the world.

Due of their inability to move, fungi produce spores that resemble seeds. These spores spread by the wind, animals, etc., and seek out new environments to flourish.

As the primary means of vegetative growth in the majority of fungi, hyphae are referred to as a mycelium. Therefore, option B is correct.

Find more on fungi:

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On which surface will the ball move the least distance?
a) Sand paper
b) Cardboard sheet
c) Frosted glass sheet
d) Wrinkle-free towel

Answers

Answer:

C) Frosted glass sheet

Explanation:

C) Frosted glass sheet

because it is Icy and slippery which make the ball move from its least distance

I hope you understand what it means

How can you use a screen to
determine whether an image is real or virtual?

Answers

Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged

What work is done when we apply a force of 5N and move in the direction of the force 2m?

Answers

Answer:

10 J

Explanation:

work = force x distance

work = 5x2

work = 10 J

Joule is the unit for work

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