PHYSICS HIGH SCHOOL

Sound waves have two parts. The part of the wave where the particles of the medium are spread apart is called the _____. rarefaction
compression
pitch
amplitude

Answers

Answer 1
Answer: The answer is A) Rarefaction. Have a good day :)
Answer 2
Answer:

Answer:

rarefaction?

Explanation:

Related Questions

True or false: Nicolaus Copernicus devised the first comprehensive Sun-centered model.
Will a change in the frequency of sound affect its speed?
The Earth's _____is what gives us day and night1. Orbit2. Rotation 3.Revolution
Which of the following accurately describes junction diodes? A. In a forward-biased setup, large numbers of charge carriers will be pulled across the junction and result in a large current. B. Free electrons are concentrated in the P-type material and holes form in the N-type material. C. The negative terminal of the source of voltage is connected to the N-type material within a reverse-biased setup. D. Only a small current will flow through the diode in the forward-biased setup.
A hollow plastic sphere is held below the surface of a fresh-water lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.650 cubic meters and the tension in the cord is 900 N. a) Calculate the buoyant force exerted by the water on the sphere. b) what is the mass of the sphere? c) the cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?

What is produced when calcium reacts with fluorine in a synthesis reaction

Answers

Calcium fluoride is produced. It is one Calcium atom bonded to two fluoride atoms. The Calcium atom receives one electron from one fluoride and a second electron from the second fluoride atom. As a result of receiving the two electrons, Calcium will have a negative charge. The two fluorides become positive from losing an electron. The positive and negative charge attraction keeps the atoms close together to form an ionic bond.

What is the current when the resistance is 5 ohms and the voltage is 10 volts?A. 10 – 5 = 5 amps

B. 10 ÷ 5 = 2 amps

C. 10 × 5 = 50 amps

D. 10 + 5 = 15 amps

Answers

Ohm's Law states V = IR
So,
I = V/R
The answer is B. 10/5=2 amps

What evidence did Alfred Wegener use to support his theory of continental drift?

Answers

Explanation:

Alfred Wegener was a meteorologist and geologist. He was inspired by a map of continents to start the journey of explaining Earth's geological history. He gave the theory of continental drift which says that the continents of Earth have moved relative to each other over time. He used following evidences to support his theory:

1. The facing side of South America's and Africa's shoreline interlocks perfectly. Which implies they must have been joined together in history.

2. Fossil of same type of reptiles found on different continents separated by huge oceans.

3. Matching the rock pieces on either side of the Atlantic oceans.

Answer: The correct answer is: coastline fits between different continents, similar rocks and fossils on different continents

Explanation: I took the test

How does molecules move in Hot and cold air?

Answers

Answer:

In cold air, the molecules mover slower because of the colder tempature, however, in hot air they move faster this is because the molecules are being heated up. Hot = faster, cold = slower

Explanation:

What came before the big bang is one of the primary unanswered questions about the origin of _____.

Answers

Answer: The correct answer for the blank is- Origin of universe.

Big band theory is an explanation about the origin of universe ( that is how universe began or the birth of universe).

Big Bang theory states that all matter ( including past and present time) in the Universe have come into existence at the same time, that is approximately about  13.8 bya ( billion years ago).

At that particular time, all matter was in the form of very small ball ( that is a compact form) with infinite density and excess heat, which is known as a Singularity.

All of a sudden, the singularity started expanding, and the universe that we know today originated.

Answer:

Universe

Explanation:

Which statement best describes the equation caco3 2hcl → cacl2 co2 h2o?

Answers

it is balanced so the coefficient would be 1 and it seems to be dehydration synthesis?
To figure if this equation is balanced or not, we must determine if the reactants are the same as the products.

Ca=1                     Ca=1
C=1                       C=1
O=3                       O=2+1=3
H=2                       H=2
Cl=2                      Cl=2

Since the amount of each element on the reactants side is equivalent to what is on the products side, we have a balanced equation. 

Final answer: This equation is balanced. 
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