Physics Middle School

urgenttt helpppp!!!!!!!!!!!!!!!!!!!!!!!!
a studentistrying to design an artificial eardrum for their science fair project. they made their eardrum hollow to cut down on cost and weight. when they tested how long it took to test the subject to hear deep, they found that their control ear drum made out of wood did better than their created one. the temperature that day wa 98 fahrenheit.
determine which statement supports the students findings.
a.the created eardrum performed worst because sound travels faster in solids due to large distance between the particals
b. the created eardrum performed worst because sound travels faster in solids due to the small distance between the particles.
c.the created eardrum performed worst because sound travels slower in air due to the small distance between the particles.
d.the created eardrum performed worst because sound travels slower through air in high temperatures due to the particles moving slower.

Answers

Answer 1
Answer is D just had this question on something

Related Questions

Two laws are described below:

Law A: It can be broken under certain conditions.
Law B: It does not focus on a natural phenomenon.

Based on these characteristics, what can you conclude about Law A and Law B?

Both Law A and Law B are societal laws.
Both Law A and Law B are scientific laws.
Law A is a scientific law and Law B is a societal law.
Law A is a societal law and Law B is a scientific law.

Answers

Answer:

B is the answer. Law A is a scientific law and Law B is a societal law

Answer: Both law A and B are scientific laws

Where in the eye are rods and cones located?

cornea

retina

lens

iris


WILL GIVE BRAINLIEST!

Answers

Answer:

By the Retina

Explanation:

I like your profile pic

Answer: retina

Explanation: They are located in the retina (a layer at the back of the eye).

The blue mass in the image is 10kg.


The red mass in the image is 10kg.


The blue mass is currently 4 meters away from the red mass.


If we change each mass to 20kg, what will happen to the gravitational force each mass puts on the other?? You have to pick a answer through A,B,C! The force of gravity will increase as the masses increase.



The force of gravity will not change as the masses increase.



The force of gravity will decrease as the masses increase.

Answers

i think it’s a correct me if i’m wrong
I’m pretty sure it is A!

PLEASE HELP! 20 POINTS!


Amy and Chris took different routes to travel from Point A to Point E. Amy took the route along A, B, C, D, and E and reached the destination in 2 hours. Chris took the route along A, G, F, and E and reached the destination in 3 hours. Their routes are shown.



Which conclusion is correct?


Amy's average speed is twice Chris's average speed.

Chris's average speed is twice Amy's average speed.

Amy's average speed is equal to Chris's average speed.

Chris's average speed is three times Amy's average speed.

Answers

Answer:

Amy's average speed is equal to Chris's average speed

Answer:

im pretty sure its 'a'

Explanation:

Amy took 1 more point than Chris and reached their destination in 2 Hrs. when Chris took less and reached the destination in 3 Hrs.

see picture for visual explanation:

What is most likely to occur during a chemical reaction

Answers

Answer/Explanation:

In a chemical reaction, the atoms and molecules produced by the reaction are called products. ... 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.

This question involves the concepts of a chemical reaction, conservation of mass, chemical bonds.

During a chemical reaction, the phenomenon that is most likely to occur from the given phenomena is "Mass is conserved".

Whenever a chemical reaction occurs old bonds between the elements are broken and new bonds are formed amongst different elements. Hence, the properties of the original substances are changed due to the formation of new bonds, and new molecules as a result.

Original molecules or substances are lost due to formation of the new ones.

No new atoms are created or destroyed in a chemical reaction. The atoms just rearrange themselves to form new molecules or substances only.

Since no atoms are created or destroyed during a chemical reaction. Hence the law of conservation of mass is applicable to a chemical reaction. This means the mass is conserved during a chemical reaction.

Learn more about the chemical reaction here:

https://brainly.com/question/18671493?referrer=searchResults

The attached picture shows different types of chemical reactions.

True or False this is a black hole 75 points + Brainliests

Answers

Answer:

true

Explanation:

lol idek tbh

Answer: true?

thx for the points anyway

Explanation:

What happens if you decrease the kinetic energy of the substance? What would happen if you increased the kinetic energy of a substance?

Answers

Answer:

decrease will go slow and increasing will make it go faster

Which contributions did Johannes Kepler make? Check all that apply.

Which contributions did Johannes Kepler make? Check all that apply.

He revived Aristotle’s model of the solar system.
He solved Ptolemy’s model by proving elliptical orbits.
He proved Galileo’s calculations were incorrect.
He determined that planets move faster when closer to the Sun.
He discovered laws of planetary motion.

Answers

Answer:

he solved ptolemy's model of the solar system

he determined that planets move faster when closer to the sun

he discovered laws of planetary motion

Explanation:

•✧•

John Kepler made significant contributions to optics and geometries. Options 2,4 and 5 are the statement that shows the contribution of Johannes Kepler.

What are the contributions of  Johannes Kepler?

Johannes Kepler was indeed an astronomer and mathematician who finds the planet's elliptical orbits around the sun.

He identifies three basic rules of planetary motion. He also made significant contributions to optics and geometries.

Following are the contributions of Johannes Kepler;

2. He solved Ptolemy’s model by proving elliptical orbits.

4. He determined that planets move faster when closer to the Sun.

5. He discovered the laws of planetary motion.

Hence options 2,4 and 5 are the statement that shows the contribution of Johannes Kepler.

To learn more about the Johannes Kepler refer to the link;

https://brainly.com/question/247659

Can someone help me


Which of the following would a good frame of reference?

A) the moon

B) a tree

C) a rabbit

D) your sister while she rides her bike

Answers

B i believe i could be wrong but idrk

Venn diagrams are used for comparing and contrasting different topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics apply to only that topic.

Overlapping circles are labeled solid on top, liquid at right, gas at left, with the intersection of all three labeled state of matter.
Which Venn diagram accurately describes what characteristics of solids, liquids, and gasses could be added to this diagram?

Overlapping circles are labeled definite shape most dense at top, mid-level density at right, definite volume least dense at left, with the intersection labeled state of matter.
Overlapping circles are labeled definite shape most dense at top, mid-level density at right, least dense at left, with the intersection of all three labeled state of matter. The intersection of the top and right circles is labeled definite volume.
Overlapping circles are labeled definite shape most dense at top, definite volume mid-level density at right, least dense at left, with the intersection of all three labeled state of matter. The intersection of the left and right circles is labeled definite shape.
Overlapping circles are labeled definite shape least dense at top, definite mid-level density at right, most dense at left, with the intersection of all three labeled state of matter. The intersection of the left and right circles is labeled definite shape.

Answers

Answer:

its the third image

Explanation:

Answer:

3

Explanation:

IF YOU PASS SCIENCE TEST HELP ME PLEASE!!!
refer to the data table below. According to the data, what conclusion can be drawn from the data table below?
A. sound doesn't travel through human beings at all
B. sound travels through human beings faster than through cork.
C. sound travels through human beings slower than through a cork
D. sound travels through human being

Answers

Answer:

uhmmm wait I'm still doing my module

Pretty sure it’s c because sound travels faster with mediums that have higher elastic property like steel
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