Which of the following is a combination of more than on simple machine?

A.Pulley
B.Wedge
C.Scissors
D.Incline

Answers

Answer 1

Answer:

D.

Explanation:

Answer 2

Answer:

It is D. Incline


Related Questions

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ help me!!!!!
Classify the following substances as:

Pure Substance – P Solution – S Mechanical Mixture – MM
Suspension – SU Colloid - C

Substance

Apple Juice

2005 Penny


Propane


Chicken Noodle Soup


Milk

Salsa


14 Karat Gold Ring


Air

Pepsi (in a glass)


Chocolate Chip Cookie

Answers

Answer:

dude me too in which garde are you ☠

What are some advantages and disadvantages of sexual reproduction?

Answers

Answer:

Allows for diversity, but is slow and inefficient compared to asexual.

What does the conversation of mass say about the amount of atoms in the reactants compared to the products?

Answers

Answer:

the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.

Answer:

[tex]\boxed {\boxed {\sf Atoms \ in \ reactants \ = atoms \ in \ products}}[/tex]

Explanation:

The Law of Conservation of Mass states that mass cannot be created or destroyed.

In a chemical reaction, this means the mass of the reactants (substances going in and being changed) must equal the mass of the products (new substances from the reaction).

In addition, the amount of atoms must stay the same. The atoms can and will reconfigure to form different compounds, but the number of atoms stays the same.

help im being TIMED A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.

Answers

Answer:

c

Explanation:

The batter aint changing the force he is using while hitting Ball B. Therefore, Motion of ball b will stay the same :D

Answer:

The third one

The Motion of ball b will stay the same

hope this helps

Explanation:

PLEASE HELP WILL GIVE BRAINLEST URGENT!!!!!!


When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound.


NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2

Answers

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is  

Step-by-step explanation:

1)When ever an acid reacts with baking soda brisk effervescence of carbon dioxide gas are released.

So, when citric acid reacts with baking soda it gives salt of sodium citrate , water and carbon dioxide gas.

2)

According to law of conservation of mass:

Number of atoms on reactant sides are equal to the number of atoms on product side.

Number of atoms of an element on left hand side is equal to the number of atoms of that same element on the right hand side.

Number of hydrogen atom on reactant side = 5

Number of hydrogen atom on product side = 2+ x

5 = 2+x

x = 3

Number of carbon atom on reactant side = 3

Number of carbon atom on product side = 1 + y

3 = 1 + y

y = 2

Number of oxygen atom on reactant side = 5

Number of oxygen atom on product side = z + 3

5 = z + 3

x = 2

Number of sodium atom on reactant side = 1

Number of oxygen atom on product side = a

1 = a

The missing compound is  

Explanation:

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is H3C2O2Na

If you need an explanation, please ask. I hope this helps! :)

I WILL GIVE BRAINLIEST BUT THE QUESTIONS MUST ALL BE ANSWERED

Directions: Identify the manipulated variable and responding variable for each hypothesis.
HINT: If (fill in manipulated variable), then (fill in responding variable)

1. If plants are watered, then growth height will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

2. If chocolate is given to teachers, then amount of homework will decrease.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

3. If trees have leaves, then bird nests will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

4. If acid rain is in water, then fish population will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

5. If calcium is given, then bone strength will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: _______________________________________

Answers

Answer:

huh

Explanation:

Not sure but maybe the answer to the first question is: the amount of water


Sorry if that’s not right

Anyone (cool, funny, middle school) wanna start a conversation?

Answers

Answer:

sure

Explanation:

what's up

Answer:

Im down, Im in 7th

Explanation:

sure hi lol

PLZ HELPPPPPPPPPPPPP
Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.

Answers

Answer: 20%

Explanation: that is the nuber of cases by thenuber of death rate

The answer is 20% hope this help

Please help me
Dan wrote the following phrase to describe the movement of particles in a state of matter. "Small pea seeds move around each other but do not bounce off." Which state of matter did Dan most likely describe? Group of answer choices Gas Plasma Liquid Solid

Answers

I’d have to say It’s a gas

Answer:

It is a Liquid

Which type of variable is kept the same throughout an experiment?

Constant variable
Measured variable
Outcome variable
Test variable

Answers

Answer:

Constant variable.

constant variable , it always stays the same

How do substances move across the cell membrane?

Answers

Answer:

The plasma membrane by diffusion

Explanation:

Materials move within the cell's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion

Plasma membranes by diffusion

How do unicellular and multicellular organisms differ in structure and function?

Answers

Unicellular had one cell and multicellular has more than one

Does anyone know the Lab Report of acids and bases???? HELP PLZ WILL GIVE BRAINLIEST WHOEVER HELPS PLZ

Answers

Answer:

Litmus is a natural acid-base indicator extracted from a type of lichen. If you have red and blue litmus paper, you can test different solutions for whether they are acids or bases. Blue litmus paper turns red when a solution is acidic; red litmus paper turns blue in basic solutions

Explanation: Hope this helped

A car is going on the 210 freeway going west at 80 mph. The car then slow down to 50 mph. As the car merges to the 605 freeway going south at 50 mph. How many changes in velocity was their?

Answers

Answer:

1

Explanation:

when he merged

when he slowed down he didn’t change direction which is a key part of velocity so that doesn’t count

The cells in the human body are like little factories. In order to grow, repair, and live, the cells need supplies. Which body systems help these cells get the energy they need?
A) circulatory system and immune system

B) digestive system and excretory system

C) circulatory system and digestive system

D) respiratory system and excretory system

Answers

Answer: A) circulatory system and immune system

Circulatory system and digestive system are the body systems which will help these cells get the energy they need.

What is Digestive system?

These are parts of the body which are involved in the breakdown of food to form energy and other compounds.

Circulatory system on the other hand ensures the nutrients are transported to other parts of the body which is why option C was chosen.

Read more about Digestive system here https://brainly.com/question/1285073

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What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breaking
BRAINLIEST

Answers

Answer:

CCCCCCCCC

Explanation:

4 QUESTIONS PLEASEEE HELP WILL GIVE BRAINLIEST!!!!
1. How are features like trenches, plains, ridges and valleys formed on the ocean floor?
2. Where does 90% of the marine life live in oceans?
3. a. Where are nutrients abundance? b. Where do these nutrients come from?
4. How do organisms deep I the ocean get their nutrients?

Answers

Answer:

1. Converging and Diverging plates

2. In the sunlit zone

3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process

4. Dead organic matter that come from phytoplankton and other plants

Answer:

1. Converging and Diverging plates

2. In the sunlit zone

3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process

4. Dead organic matter that come from phytoplankton and other plants

Explanation:

im literally gonna cry . what is this

Answers

Ok I will!!!!!!!!!!!
what is the picture lol , it looks like it was took on a calculator....

PLS HELP ASAP

How does the mass of an object affect its force?

Answers

Answer:

If mass increases, force increases.

Explanation:

hope this helps, pls mark brainliest :D

How do matter and energy move through an ecosystem?
My scientific explanation is:

Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.

Answers

Food chains allow energy to move through an ecosystem. For example, energy is transferred from organism to organism such as the sun gives energy to grass, grass gives energy to grasshoppers when they eat grass, mice eat grasshoppers, and snakes eat mice, eagles or bigger birds of prey eat snakes. A technique discovered by Charles Elton named energy pyramids display how energy is dispersed on a pyramid starting from producers to tertiary consumers. An example of a producer would be grass, primary consumer would be a grasshopper (herbivores), a secondary consumer would be a mouse/mice (eat herbivores), and a tertiary consumer (eat secondary consumers) would be an owl. Starting from the bottom of the energy pyramid (producers) to the top (tertiary consumers) it 10% of energy is available to travel up the pyramid. That is your scientific explanation!

Can someone please explain the cause and effect between the rearrangement of atoms and molecules in a chemical reaction and the different properties that the products have from the reactants.

Answers

Answer:

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation:

Materials move across a cell membrane in a process called _______.

Answers

Answer:

Diffusion

Explanation:

Osmosis? Diffusion?

Which of the materials in the chart originally came from fossil fuels?

Group of answer choices

Acrylic

Cotton

Nylon

Polyester

Viscose

Answers

Answer:

Polyester

Acrylic

Nylon

Are all made of fossil fuels.

nylon the answer is nylon

please help me answser this, its a photo

o element
o subscribe
o coefficient

Answers

Answer:

I believe it is a element

.........

How is acids and bases connected to Physical Science?

Answers

An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. A base is an ionic compound that produces negative hydroxide ions when dissolved in water. Bases taste bitter and turn red litmus paper blue.

Answer:

Under the Brønsted-Lowry definition, both acids and bases are related to the concentration of hydrogen ions present. Acids increase the concentration of hydrogen ions, while bases decrease the concentration of hydrogen ions (by accepting them).

What are the four main components of a galaxy?
A. Gas, dust, rock, and planets
B. Planets, stars, gas, and rock
C. Stars, clouds, orbits, and other objects
D. Stars, gas, dust, and other objects

Answers

It will be D stars, gas, dust, and other objects

The four main components of galaxy are Stars, gas, dust, and other objects

Galaxy is a any type system that contain stars,dust, stars remnants, interstellar gas, dark matter and other objects to form universe.

It is derived from Greek word which means milky ,hence it is termed milky way.

Galaxies have different shapes and variations in which the systems are formed.

Galaxies have different in structure and the king of activities that occur in them. Some are site of formations of vigorous sites and so on.

Therefore,

please help asapppp

if you cant read the question is says : "sort the factors that affect and impact growth of plants. Drag and drop each word into the correct category in the chart below. Some words may go in more than one category"

pls donttt answer if you dont know.

Answers

Answer:

well i can't see half of the picture. unless im blind.

Explanation:

Basically genetic means that they’re things that the plant controls. For example: what it tastes like and how resistant it is to disease. Environment are outside impacts like droughts. Let me know if that helps or if you need more information to finish sorting

What causes the electrons to move and form static electricity?
moist air
dry air
friction

Answers

Answer:

friction

Explanation:

The rubbing of certain materials against one another can transfer negative charges, or electrons.

The friction generating between the surface of two objects causes the electrons to move from one body to the other and form static electricity. Hence, option c is correct.

What is static electricity ?

Static electricity is the flow of electrons that occurs due to the temporary polarization of two bodies. When a conducting surface rub on other surface, they gets electrons by frictional force.

These free flow of electrons make them negatively charged. When this negatively charged body comes in contact with a non conducting surface they latter gets polarized by the electrons of negatively charged body.

The positive charges of the nonconducting surface gets attracted to the negative body and the electrons flow from the negatively charged body to the partially polarized positive body. This is called static electricity.

Find more on static electricity:

https://brainly.com/question/22172098

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New Orleans has an altitude at and below sea level, a latitude near the Tropic of Cancer (the equator-zone), is surrounded by water, and has no mountains near by. What would you expect the climate to be?

Answers

Answer:

Rainy, sunny and humid.

Explanation:

This separation of charge on (blank) of the molecule is called (blank).

Answers

Answer:

Polar and Non-Polar Molecules

Explanation:

Polar and non polar
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