Which would describe a situation in which the Doppler effect is occurring? Sheila notices an increase in volume as an object approaches her. Brad hears an object increase in loudness as it is vibrated at its natural frequency. Judy notices an increase in intensity as an object is vibrated at its natural frequency. Damian hears a change in pitch as an object moves past him.
Answer:
Damian
Explanation:
The Doppler Effect is hard for me to put into words, but a common example is that when you stand still on the side of the road, you notice how the pitch of a fire engine's siren changes from when it's coming towards you vs driving away.
Answer:
Damian
Explanation:
Which statements are accurate about earthquakes that occur during the formation of a chain of islands and seamounts by a hotspot? Select the three correct answers.
- Earthquakes occur at the moment when a weathered island finally is under water again.
- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.
- Earthquakes occur along fault lines during plate movements.
- Earthquakes occur along fault lines within volcanoes formed by the hotspot.
- Earthquakes occur as part of the process of island weathering.
- Earthquakes occur at the moment when a volcano goes extinct.
Answer:
The following are accurate about earthquakes which occur during the formation of a chain of Islands and seamounts by hotspots:
- Earthquakes occur along fault lines within volcanoes formed by the hotspot.
- Earthquakes occur along fault lines during plate movements.
- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.
Explanation:
for a type of organism to survive,all organism of there type must reproduce true or false
Answer:
true
Explanation:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Which of the following is the best description of the cane toad’s introduction to Australia?
a.
It was a successful biological control mechanism for cane beetles.
b.
It was a failed biological control mechanism for cane beetles.
c.
It was a successful method for reducing freshwater crocodile populations.
d.
It was a failed attempt to eradicate South American fire ants.
Answer:
b.......................
Answer: The correct answer if B)
B) it was a failed biological control mechanism for canned beetles
Explanation:
I just took the test
Which of the following is NOT a main component of an amino acid structure?
a. lone hydrogen
b. side R variant group
c. carboxyl group
d. phosphate group
e. amino group
The answer is D) phosphate group.
Amino structures do not have a phosphate group.
Hope this helped. :)
Which of the following fossil types is best described as forming when minerals replace all or part of an organism's body?
A. a mold
B. a petrified fossil
C. a cast
D. a trace fossil
Answer:
A cast
Explanation:
Answer:
C. a cast
Explanation:
Why does the earth have different layers?
Explanation:
because at is formed,the lighter part floats on the surface and the really heavy part (like iron and nickel in the core)sank to the middle
HELPP ILL MARK BRAINLIEST!!!
Answer:
I think the answer would be B. Volcanic Islands
Explanation:
In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading. Hot magma rises to the crust's surface, cracks develop in the ocean floor, and the magma pushes up and out to form mid-ocean ridges.
Hope this helps! :D
Answer:
I am pretty sure that It is B
Explanation:
i would like brainliest cause i need 2 more lol
The _________is the basic unit of structure of all living organisms.
Answer:
Cells
Explanation:
The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.
What is protein pump?
IN YOUR OWN WORDS.
Photosynthesis uses solar energy, carbon dioxide, and water to release oxygen and to
produce energy-storing sugar molecules. ... The process of photosynthesis can be
represented by an equation, wherein carbon dioxide and water produce sugar and
oxygen using energy from sunlight.
Answer:
Its number 2
Explanation:
I did the test. Hope this helps have a good day.
How does the mean speed of the water molecules change as they are heated
The average speed of water molecules increases as they are heated, it is due to kinetic energy.
How does water molecule changes due to heating?When change in temperature, there is also a change in the kinetic energy of the molecule. If an increase in temperature, the kinetic energy also increases. Thus, the movement of water molecules increases as we heat it up.
If molecules are heated up, it changes the kinetic energy and increases the collision and diffusion rate of the molecule.
When any substance gets heated it gains thermal energy and if cooled it losses thermal energy. If a molecule gets kinetic energy or a water potential is higher than the concentration of water in a system.
Therefore, the mean speed of the water molecules increases as they are heated.
Learn more about water molecules, here:
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What happens to the amount of light as the moon travels from the new moon phase to the full moon phase?
Explanation:
Between the new and full Moon, the amount of Moon we see grows — or waxes from its right side toward its left side. As it passes the full Moon stage, the amount of illumination decreases — or wanes — from right to left. ... No matter where on Earth an observer is, however, the phases of the Moon occur at the same time.
[tex]\huge\bold\pink{Answer:-}[/tex]
Moon phases represent the names given to points in its orbit around Earth. Each phase lasts for only an instant as the moon constantly moves. To the naked eye, the full moon lasts about three days, but in reality, it is a full moon for just an instant before it begins to wane. The moon takes just under one month -- an average of 29 1/2 days -- to complete its phases.
Phases of the Moon:-The moon has eight phases: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter and waning crescent. But it is not as simple as dividing 29 1/2 by eight to find out how long each phase lasts. The fraction by which the moon is illuminated steadily increases or decreases at all times.
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ❤Explain why streets and highways have speed limits rather than
velocity limits. Because
Answer:
Velocity is a vector, it has magnitude and direction. They have speed limits rather than velocity because in whatever direction you go, you should have limited speed.
what is the caloric value of a carbohydrate
Answer:
4 kcal per gram of carbohydrate
Answer:
4 kcal per gram of carbohydrate
Explanation:
FAST IM GETTING TIMED BRAINLIEST
The following is an example of convection, conduction or radiation;The attic is really warm in the summer and the basement is cold
Conduction
Convection
Radiation
Answer:
The answer is Covection.
Explanation:
Convection current occurs where hot / warm air rises and cold air drops and replace it.
Answer:
I Would say Radiation.
Explanation:
The Attic is reciving radiation from the sun while the basement is not
(it could also be conduction, but im positive on radiation)
order the milky way galaxy, sun, universe, local group, solar system from smallest to largest
Answer:
Sun - Solar system - Local group - Milky way galaxy - Universe
If my answer helped, kindly mark me as the brainliest!!
Thank You!
Answer:
sun
Explanation:
A group of tissues that join together for a particular function are known as:
A. Cell
B. Organ
C. Organism
D. Organelle
Answer:
Organ
Explanation:
Answer:
Organ
Explanation:
True or False: The nervous system can move muscles without us even
thinking about it.
Explain how traits are passed down in an organism, such as a dog.
Answer:
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
true or false the higher the altitude, the greater the air pressure
This is true. The atmosphere gets tighter as you go up.
Surface area equals 4 pi r squared where r is the radius of a sphere and pi is a constant that is roughly equal to 3 using the sample approximation above calculate the surface area of a sphere with the radius of 2 m
Answer:
48m^2
Explanation:
im doing the same thing u are lol
Answer:
ya its 48
Explanation:
Im doing the same quiz
Can you help me i wil give you a branlist and its science
Answer:
30 millileters of liquid
Which of the following describe a chemical change? Select all that apply.
1. Only the physical appearance of a substance will change.
2. A chemical change alters the makeup of a substance.
3. It produces a new substance with different properties.
4. Chemical bonds must be broken and reformed for a chemical change.
select all that apply
Answer:
1
Explanation:
Chemical changes causes a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.
Contact lens solution is salty in order to match your tears. Contact lens solution is ______________ to the cells in your eyes.
Is it hypertonic, hypotonic, or isotonic solution
Answer:
Its isotonic
Explanation:
Because The contact lenses that we wear have been formulated to be isotonic, which means that they have the same osmotic pressure as the tear film in our eye.
Contact lens solution is salty in order to match your tears, which is isotonic to the cells in the eyes. The correct option is C.
What is isotonic solution?Isotonic solutions have the same osmolarity (or solute concentration) as other solutions.
Water will flow in equal parts out of each solution and into the other if these two solutions are separated by a semipermeable membrane.
Isotonic solutions are used to increase fluid volume due to blood loss, surgery, dehydration, and extracellular fluid loss.
The contact lenses we wear are isotonic, which means they have the same osmotic pressure as the tear film in our eye's layer of lubricant bathing the cornea and conjunctiva.
The ocular tissues and the water in the lens must maintain equilibrium.
Thus, the correct option is C.
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Which of the following is TRUE about Earth's plates?
forgot a pic cant help if ion have a visual
Which of the following is NOT a true statement?
Prokaryotes are simple and eukaryotes are more complex
Prokaryotes have free-floating DNA and eukaryotes have DNA in a nucleus
Prokaryotes have a smaller nucleus and eukaryotes have a larger nucleus.
Prokaryotes have a smaller nucleus and eukaryotes have a larger nucleus.
Which of the following is NOT true of carbon?
A. It is present in all organic compounds.
B. It is a relatively small atom.
C. It will do anything to fill up its electron shell.
D. It can bond with multiple other atoms at once.
Anybody know?
Answer:
it is b
Explanation:
The characteristic which is not true of carbon is: B. It is a relatively small atom.
Carbon can be defined as a non-metallic and tetravalent chemical element represented with the chemical symbol C and it has an atomic number (number of protons) of six (6). This ultimately implies that, carbon is found in Group 6 of the periodic table because of its six (6) valence electrons, that are found in the outermost shell of its atomic nucleus.
Some of the characteristics of carbon include the following:
It has the ability to form a covalent bond with multiple other atoms at once.It is found in all organic compounds.It does anything to fill up its electron shell.It is a relatively large atom, which allows it bond with multiple other atoms.Read more carbon on here: https://brainly.com/question/19954749
Ali has an unknown bottle of liquid and wants to test if the solution is acidic. What is the color of the litmus paper he should use?
pink, orange, gray or blue
Hurry Please! (In your own words)
What is the difference between passive transport and active transport?
Answer:
Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive transport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy