How does the speed of a sound wave change based on the density of the medium the wave passes through?
a. In a denser medium, the sound wave will speed up and then slow down.
b. In a denser medium, the sound wave will travel slower.
c. In a denser medium, the sound wave will travel faster.
d. Density does not affect how fast a sound wave will travel.
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Related Questions
Cells which form pathways to and from the brain are
.epiltheilal neurons connnective
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Draw Bohr diagrams for the following
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example calculation for a.)
N = 39 - P
N = 39 - 19
N = 20
P = 19
Where should you place the label on a line graph for the independent variable?
As usual, any non-answers will be reported. Thank you!
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The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
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Organize it fossil
If somebody knows the answer please tell me
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Answer:Carbon-14 dating is second column tho
Explanation:So i remember doing this in 5th grade at my school so if u send me ur email i. can try send you my labs i hate doing them.
How is the behavior of food coloring in the cool and heated water different? What caused the differences in their behavior?
Please don't just give the sample response.
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Answer:
The food coloring mixes much faster in the hot water than it mixes with the cold water. This is because in the hot water, water molecules have more energy and are moving faster than the molecules of cold water.
Explain what is happening to molecules in the chemical reaction shown here. Helpful vocabulary: the
number of atoms, reactant, rearrange. product.
2KF + BaBr, → BaFe + 2KBr
Your answer
Answers
Answer:
d
Explanation:
Explain what is happening to molecules in the chemical reaction shown here. Helpful vocabulary: the
number of atoms, reactant, rearrange. product.
2KF + BaBr, → BaFe + 2KBr
Your answer
Minerals must have atoms that are tightly packed together and cannot move freely. Which part of the definition of a mineral does this describe?(1 point)
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Answer: soild
Explanation:
Answer: Solid state of matter
Explanation: Minerals have atoms that are tightly packed together and cannot move freely. This is a characteristic feature of solid matter where the atoms are tightly packed and they cannot move freely, has less space between them. Thus are rigid. The solid state is the most dense state of matter.
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4. A sledgehammer has a mass of 5 kilograms. What net force will a person need to apply to accelerate the sledgehammer to 5 m/s^2? Be sure to include units in your final answer (spell out the word).
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Answer:The force that the person needs to apply to accelerate the sledgehammer is 14N.
What is a Force?
A force is an influence that can cause an object's motion to alter. A force can cause a mass item to change its velocity, or accelerate. Intuitively, force may be characterized as a push or a pull. A force is a vector quantity since it has both magnitude and direction. Its SI unit is Newton.
Force = Mass × Acceleration
Given that the mass of the sledgehammer is 3.5 kgs, the sledgehammer is needed to be accelerated at a rate of 4 m/sec².
Mass = 3.5 kgs
Acceleration = 4 m/sec²
Now, the net force that the person needs to apply to accelerate the "sledgehammer" at a rate of 4.0 m/sec² is,
Force = Mass × Acceleration
= 3.5 kg × 4 m/sec²
= 14 N
Hence, the force that the person needs to apply to accelerate the sledgehammer is 14N.
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if i have 17 apples and i eat 17 apples how many pears do i have?
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Answer:
If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.
help me with this I only have one more
1156 g/L
= ________ kg/mL
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The Answer is 0.001156.
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
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c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
similarities between static electricity and static
pls write a lot
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Answer:
As opposed to static electricity where charges gather and remain at rest, current electricity is dynamic, charges are always on the move.
Explanation:
Current electricity is the form of electricity which makes all of our electronic gizmos possible. This form of electricity exists when charges are able to constantly flow. As opposed to static electricity where charges gather and remain at rest, current electricity is dynamic, charges are always on the move.
i need help with this
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A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper?
soap
vinegar
lemon juice
antifreeze
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The litmus paper shows red colour for acidic substances and blue colour for basic substances. Thus a red litmus paper will turn blue if it is dipped in an alkaline solution. Soap is alkaline and given blue color to litmus.
What is pH?pH of a substance is its measure of concentration of H+ ions in it. It is mathematically negative logarithm of H+ ion concentration. Thus, pH measures how much acidic or basic the solution is.
A pH of of 7 is neutral having no acidity or basicity. A pH less than 7 is acidic and pH greater than 7 is basic in nature. Vinegar is acetic acid and it shows less pH . Lemon juice also acidic since it contain citric acid whereas, soap is basic.
A litmus paper is used to identify whether a substance is acidic or basic. It shows red color for acidic solutions and blue for basic solutions. If the red litmus paper is dipped in acidic one, it shows no colour change if it is dipped in basic solution then it turns to blue.
Soap is highly alkaline and it changes red litmus paper to blue.
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how do photoynthesis and cellular respiration work together to make ecosystems function?
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Answer:
Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2
Explanation:
Answer:
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These two processes are responsible for the exchange of oxygen and carbon dioxide between living organisms and the environment. Photosynthesis converts carbon dioxide and water into oxygen and glucose Cellular respiration converts oxygen and glucose into water and carbon dioxide.
What is an ellipse please help)
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In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Hydroelectric power plants capture the ______________ of falling water to generate electricity. The falling water turns a wheel called a turbine and ____________________ the mechanical energy of falling water into electrical energy.
Windmills capture the ____________________ of moving air to generate electricity. The moving air turns the blades of the windmill turning a turbine and changes the ___________________ energy of the moving air into electrical energy.
Fill in the blanks!
Thank you!
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Answer:
1: energy
2: converts
Kinetic energy is either 3 or 4, those questions are really similar.
Answer:
1: energy
2: converts
3: energy
4: kinetic
Explanation:
Which of the following problems would be a direct result of humans building along the ocean shore zone?
A. the erosion of the sand and soil from the shoreline
B. sand dunes and vegetation being disturbed
C. the movement of sand from one place to another
D. sand being washed away over long periods
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Answer:
I think it is B.
Explanation:
The erosion of the sand and soil from the shoreline would be a direct result of humans building along the ocean shore zone. When humans build structures along the shoreline. This can lead to increased erosion of the shoreline and loss of the beach.
Building along the ocean shore zone can have several impacts on the natural environment. One of the direct impacts is the erosion of the sand and soil from the shoreline. This occurs because construction can disrupt the natural processes that maintain the beach, such as the movement of sand and the protection provided by vegetation.
For example, building seawalls or other structures can prevent the natural movement of sand and sediment along the beach. This can lead to erosion of the shoreline, as the sand is no longer able to accumulate in areas where it is needed to protect the shoreline. These plants help to hold the sand in place and protect the beach from erosion.
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please help bohr diagram practice
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Answer:
nothing is here
Explanation:
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
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To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Help idk this plzz....
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Answer:
Fe - Chemical symbol
2HCl - co-efficient
FeCl - chemical formula
------> - yields
H2 - Subscript
Explanation:
The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to have “drip tips” that allow the water to run off of the leaves.
What type of adaptations are these? Compare and contrast the adaptations of the Toucan and Monstera Plants of the rainforest. Your answer should be 3–4 sentences long.
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Answer:
i believe the answer is psychical adaptations
Explanation:
because the leaf changed over time
Is Fossil Fuel OverUse threatening your health
by: Erin Cobb
Summary Paragraph (last sentence MUST conclude) Your first sentence must include the title/author of the article, verb, and central idea
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Answer/Explanation:
Is Fossil Fuel Overuse threatening your health? Pollution that not only can harm health but also foster climate changes. The Overuse of fossil fuel damages our health. For Instance, Burning fossil Fuel increates a carbon dioxide; to much CO_2 is harmful to our health. This Proves that Fossil fuel can harm our health. Burning fossil fuels could lead to developmental delays in children. This tells us it can be very harmful for children. To much Co_2 can cause children to have adhd. In the text it states children exposed to air pollution from fossil fuels have a significantly greater chance of developmental.Fossil fuels burning cause global warning that makes it difficult to grow crops. This reveals that Fossil fuels can be harmful for the environment. Burning fossil fuels can cause extreme weather and it can cause people to lose their homes and lives.
~Lenvy~
Answer:
Ofc fossil fuel overuse threaten my health.
Explanation:
Is Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your healthIs Fossil Fuel OverUse threatening your health. YESHHHHHHHH.
Pls help! I don’t have time I have an exam really soon
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2.)Semolina flour differs from white flour in the way it's processed and the type of wheat that's used. Semolina is made with grooved steel rollers. The rollers crack the starch of wheat kernels into coarse pieces which is then ground into flour. The starch itself is the semolina.
3.) Whole Wheat flour or Whole grain flour is milled from the complete seed and nothing is removed. This adds not only fiber but all the minerals and vitamins in the different layers of the wheat seed.
Develop models bonds can be placed on a scale that ranges from 100% ionic to 100% covalent. Use what you know about the types of bonds that specific elements tend to form to place each of the following compounds in the correct location on the scale: CO2, N2 , NaF, H2O
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Answer:
Bonds can be placed on a scale that ranges from 100% ionic to 100% covalent.
CO2: CO2 is a covalent compound, with each carbon atom sharing electrons with two oxygen atoms. Therefore, it can be placed closer to the 100% covalent end of the scale.
N2: N2 is a covalent compound, with each nitrogen atom sharing electrons with another nitrogen atom. Therefore, it can be placed closer to the 100% covalent end of the scale.
NaF: NaF is an ionic compound, consisting of a sodium cation (Na+) and a fluoride anion (F-). Therefore, it can be placed closer to the 100% ionic end of the scale.
H2O: H2O is a polar covalent compound, with the hydrogen atoms sharing electrons with the oxygen atom, but the electrons are not shared equally, therefore the oxygen atom has a partial negative charge and hydrogen atoms have a partial positive charge. Therefore, it can be placed closer to the middle of the scale, between ionic and covalent.
Overall, the scale can be represented as follows:
100% Ionic <-------> NaF <-------> H2O <-------> CO2 <-------> N2 <-------> 100% Covalent
Properties of cotton ball
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Answer:
1. Absorbent
2. Breathable.
3. Hypoallergenic.
4. Non-toxic.
5. High wet modulus (stronger when wet)
6. Biodegradable.
7. Excellent wicking.
8. Wipe dry performance.
Answer:
Stringy, light, spherical, absorbant, small, and thread-like (because you can make cotton into clothes).
I just need help all I need is the answer please some one
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Answer: The correct fill-in-the-blank answers are:
1. through binary fission (already filled in)
2. be resistant to penicillin
3. through asexual reproduction.
4. cell replicates before
5. a simpler process
Explanation:
The correct fill-in-the-blank answers are:
1. Bacteria reproduce through binary fission (already filled in)
2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.
4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.
5. Asexual reproduction is a simpler process than sexual reproduction.
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Based on the results of your investigation,make a claim about how changing the size or shape of an object affects its density?
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Answer:
It can affect it by taking away mass and volume. Mass and Volume are the two factors that calculate and make up density
Explanation:
Mass/Volume =Density
If you were to change the mass or volume by changing the size or shape of an object, then this would affect the density.
Where is the DNA stored in a cell?
Answers
Answer: nucleus
Explanation:
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Tim and Christie poured coffee from the same pot into two cups. Christie poured milk into her cup then she added 5 teaspoons of sugar and stirred it for five seconds. Tim on the other hand put 5 teaspoons of sugar into his cup and stirred it for five seconds, and then he added milk. Christie noticed that her sugar did not dissolve completely.
What is the Independent Variable in this experiment?
What is the Dependent Variable in this experiment?
What are some of the Constants in this experiment?
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Dependent variable: How well the sugar dissolves
Constants: The same coffee from the same pot, the same amount of sugar, and the same duration of time it’s stirred for