Submarines use a technology called "sonar" that bounces sound waves off of objects in the water. The sonar operators measure how long it takes for the signal to return to them. The information they get from sonar allows them to know
A.
how massive objects in the water are
B.
if objects in the water are man-made
C.
how far away objects in the water are
D.
what color objects in the water are

Answers

Answer 1

Answer:

c......................

Answer 2

Answer:

C

Explanation:

how far away objects in the water are


Related Questions

The structure labeled "A" open and close the sites where the gases, carbon dioxide and oxygen, are exchanged during photosynthesis. What is the structure labeled A?

Answers

The structure A in the question seems missing but the given answer is based on the description given in the question.

Answer:

The gaseous exchange of carbon dioxide(CO2) and oxygen(O2) occurs through small, regulated openings called stomata during photosynthesis.

Therefore the Structure A is Stomata

What's the term that describes all the chemical reactions taking place in an orgasm

Answers

Answer:

Metabolism

Explanation:

I NEED HELP RN!! PLEASE
An oven is a technological system. Which of the following describes an input into this system?
A. setting the temperature
B. Burning gas releases heat.
C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low.
D. A cake is baked.

Answers

Answer:

c got it right on my quiz

Explanation:

ANSWER QUICK PLS I WILL GIVE BRAINLYIST

At what point should health officials have started to control the spread of Ebola in West Africa? It needs to be an essay.

Answers

I think health officials should have started to control when more people started getting sick . When people starting dying and causing a outbreak it should of went under a health check . The people in west Africa should have stayed home and quarantined there selves and waited until things got better .

A scientist is extracting the DNA of a multicellular organism. He finds that 20% of the strands bases are Thymine. Based on Chargaff's rule, what percentage of the
strands bases would be Adenine?

A. 20%
B. 70%
C. 40%
D. 60%

Answers

Answer:

A. 20%

Explanation:

A DNA molecule consists of four nucleotides viz: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). According to Chargaff in his complementary base pairing rule, these nucleotides pair with one another in such a way that A bonds to T, while G bonds to C.

Based on Chargaff's rule, the amount of Adenine in the DNA is equal to the amount of Thymine while the amount of Guanine is equal to that of Cytosine i.e. A=T, G=C.

A + T + G + C = 100%

Hence, in this question, a scientist finds that 20% of the strands bases are Thymine. This means that the amount of Thymine in that DNA will also be 20%. S

Since A=T = 20% in accordance to Chargaff rule.

7. How does the revolution of the Earth around the sun cause the seasons to change?

Answers

it’s caused because the sun moves around the world

Which of the following types of fats are most associated with heat disease? (They tend to be solid at room temperature)

A. Monounsaturated
B. Polyunsaturated
C. Phospholipids
D. Saturated fats

Answers

Answer:

Saturated Fats

Explanation:

BRAINLIEST PLEASEEEEE

polyunsaturated

Explanation:

all dietary food contains(polyunsaturated)are solid

What is the function of lipids?

Answers

The following are functions of lipids:

Long term energy storage
Protection against heat loss (insulation)
Protection against physical schlock (cushion)
Protection against water loss
Chemical messengers (hormones)
Major component of membranes (phospholipids)

How does water cause frost wedging?

A
Water attracts lightning, which breaks apart huge boulders into many smaller pieces.

B
Water carries sediment to large rocks, causing them to rub against each other.

C
Water freezes and thaws inside rock cracks, causing them to widen and then split.

D
Water slowly wears down a rock’s sharp edges, leaving behind a smooth surface.

Answers

Answer:

C. Water freezes and thaws inside rock cracks, causing them to widen and then split.

Explanation:

When water gets in the crack at the bottom and freezes, frost wedging occurs.

Frost wedging happens when water gets in crack, freezes, and expands. This process breaks rocks apart. When this process is repeated, cracks in rocks get bigger and bigger (see diagram below) and may fracture, or break, the rock.

The answer is c and also it tell me it has to have 20 characters so I’m typing this

Which is the process by which green plants use sunlight, water, and carbon dioxide to make food?

o photosynthesis
o cellular respiration
o anaerobic respiration
o fermentation

Answers

Answer:
Photosynthesis
Explenation:
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
photosynthesis, it occurs in the choroplast

do cells produce waste

Answers

no they do not your welcome

Function of trichocyst

Answers

Answer:

Just read this and summarize it

Explanation:

There you go!

Cells use a molecule called
Choose...
to store and release energy like a battery. The energy is stored in chemical bonds between
Choose...
groups of the molecule, and the energy is released when the chemical bonds are broken.

Answers

Answer:

ATP & Phosphate

Explanation:

just took the quiz and got it right

Use the diagram below to answer the following question.
Which of the following statements accurately describes the relative age of the fossils in these rock layers?
A) The yellow shell fossils are from 300 million years ago
B)The brown trilobite fossils are from 500 million years ago
C)The brown trilobite fossils are older than the yellow shell fossils
D)The yellow shell fossils are older than the brown trilobite fossils

Answers

Answer:

C) The brown trilobite fossils are older than the yellow shell fossils

Explanation:

Calculate the volume in mL of a stock solution of 100% ethanol, required to prepare 2 L of a 70% solution of ethanol in dH2O

Answers

Answer:

For example, to make 70% ethanol from 95% ethanol, take 70 mL of 95% ethanol and add enough water to bring the volume to 95 mL. You will then have 95 mL of 70% ethanol. This works for any dilution and all that is required is a large enough graduated cylinder.

When using liquid reagents, the percent concentration is based upon volume per volume, i.e. #ml/100ml. Example 2: If one wished to make a 70% ethanol solution, 70 ml of 100% ethanol would be dissolved in 30 ml of water (or the equivalent for whatever volume was needed).

What does DNA replication ensure?

Answers

Answer:

To ensure that mistakes, or mutations, are not introduced, the cell proofreads the newly synthesized. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

Explanation:

That’s the genes and genetics are transferred over

What macromolecules provide instruction for growth

Answers

Correct answer :

D. Nucleic acids

does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.

Answers

Answer:

Yes. You need to go to the doctor.

Explanation:

Your foot could be doing this because the bone itself could be bruised or else it somehow got injured or is in some other type of pain.  

What is the highest possible elevation shown on the map?

Answers

Answer:

Point B

Explanation:

HELP PLEASEE
What is the difference in climates east and west of the Cascade Mountains in the Pacific Northwest?
There is more cloud cover and more rain in the east of the Cascade Mountains,
O There are colder winters in the west but milder winters in the east of the Cascade Mountains,
O There is more sunshine and less rain in the west of the Cascade Mountains
There are milder winters in the west but colder winters in the east of the Cascade Mountains,

Answers

Answer:

There are milder winters in the west and colder winters in the east

Answer:

There are milder winters in the west but colder winters in the east of the Cascade Mountains. or d/4th one

Explanation:

made it easier to read other one

B. What is the largest cell called?
This is the largest cell in the human body. In
contrast, the sperm cell is the smallest cell in
the human body.
HELP ASAP!!!

Answers

Answer: the largest cell in the human body is the ovum



Step by step explanation:

What dose the numbers on the map mean

Answers

Answer:

how far you need to go and the coordinate 55 south or something  

Explanation:  55 south or something  

A cell’s nucleus will divide during mitosis. Whaat process must happened before it can divide?

Answers

Prokaryotic cells, which include bacteria, undergo a type of cell division known as binary fission. This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm. The outcome of binary fission is two new cells that are identical to the original cell.

Someone please tell me the closest planet and the farthest in order 1-8

Answers

Answer:

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Explanation:

Answer:Closest to farthest: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Explanation:

Quick question please help (: 40 points

Suppose a scientist found a new fossil that indicated it was a primitive mammal. Relative dating techniques place the age of this fossil at a much earlier time than mammals were thought to exist. What effect will this finding have on understanding of the history of life?
A.
The split between mammals and nonmammals in the tree of life needs to be shifted back.

B.
A new branch needs to be added to the tree of life.

C.
An existing branch on the tree of life needs to be removed.

D. Other fossils need to be retested to be sure that the ages assigned to them are not in error.

Answers

Answer:

d

Explanation:

Which of these best describes weathering and erosion?

A
They are tools people use to change landforms and create new ones.

B
They only affect one landform: islands.

C
They cause tiny changes to Earth’s surface that become enormous over time.

D
They significantly change the surface of the Earth every few days.

Answers

the answer i believe is d

The best description of weathering and erosion should be considered as the option d. They significantly change the surface of the Earth every few days.

What is weathering and erosion?

Weathering represent the break down or the rocks should be dissolved out and the minerals should be on the earth surface.

When the rock should be split down so this process we known as the erosion transports.

Therefore, the option d is correct.

Learn more about earth here: https://brainly.com/question/12004410

1. How much force accelerate a bicycle and rider with mass 60 kg at 1.5 m/s?

Answers

Answer:

Force, F = 90 N

Explanation:

Given that,

Mass of the bicycle and rider, m = 60 kg

Acceleration of the bicycle and rider, a = 1.5 m/s²

We need to find the force acting on the bicycle and rider to accelerate. Let it is F. Its force is given by :

F = ma

F = 60 kg × 1.5 m/s²

F = 90 N

So, the force acting on the bicycle and rider is 90 N.

What steps of the water cycle are affected by gravity and which by the Sun?

Answers

Water is most dense as a liquid then as a solid and least dense as a gas while sunlight is the energy source the greatest force propelling the water cycle is gravity it pulls precipitation down from clouds and pulls water downhill gravity also moves air and ocean water

From the giraffe story, give an example of the following:
1. Variation
2. Adaptation
3. A factor affecting the size of a population

Answers

Answer:

1. Each Giraffe's neck length is different

2. The tall neck Giraffes reproduced and their off spring inherited their genes

3. A drought occurred.

Explanation:

Fill in the blank

The length of __________ of dark period controls _________.

Answers

The length of period of dark period controls flowering.
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