Explanation:
speed = distance ÷ time
= 100 cm ( 1 meter ) ÷ 5 seconds
= 20 cm/s
= 0.2 m/s
Why is melting ice a physical change?
The process can be undone.
The process moves atoms into permanent places.
The process releases energy.
The process creates a new compound.
Answer:
The process creates a new compound.
Explanation:
EZ
please help please lol
Answer:a and d
Explanation:
How does osmosis affect plants?
Osmosis allows more sunlight to enter the plant.
Osmotic pressure helps plants to keep its rigid structure.
Answer:
Osmosis is how plants are able to absorb water from soil. The roots of the plant have a higher solute concentration than the surrounding soil, so water flows into the roots. In plants, guard cells are also affected by osmosis. These are cells on the underside of leaves that open and close to allow gas exchange.
Hope this helps.
Answer: In biology osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.
Explanation:
Which of the following is true about light waves? (Select all that apply.)
Light waves need a medium to travel through.
Light waves do not need a medium to travel through.
Light waves are transverse.
Light waves are longitudinal.
Answer: Light waves are transverse, Light waves do not need a medium to travel through
Explanation:
C. Light waves are transverse
B. Light waves do not need a medium to travel through
I hope this helps, if it does please leave a thanks and rate this question, Thank You!
An increase in ocean salinity can increase ____, creating a current.
A. wavelength
B. density
C. the Coriolis effect
D. wave height
Describe how a chemical change follows the law of conservation of matter.
give examples pls
Answer: In any chemical change, one or more initial substances change into a different substance or substances. ... According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.
Explanation:
A colored thermal image shows a yellow person sitting in front of a red and orange computer screen. The rest of the room is blue. A scale runs from 20.3 degrees Celsius at blue through green and yellow to orange and red at 40.3 degrees Celsius.
This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person and the computer.
Thermal energy will flow from the
to the
[wheres science ?! this is science^]
Answer:1) person 2) person
Explanation:
I just did the assignment
The correct answer is the computer's thermal energy will be transferred to the human.
Why does energy flow from the computer to the person?Computers are often devices that transform electrical energy into thermal energy, which is then supplied to the user. The energy is transferred from the higher to the lower amount. In this example, the computer produces more thermal energy than the person, which is why energy flows from the computer to the person.Learn more about computer thermal energy here:-
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The presence of _____ in the cell wall makes the walls somewhat rigid.
cellulose
cell membrane
chloroplast
chlorophyll
Which statements demonstrate the law of conservation of matter? (Select all that apply.)
water evaporating in the water cycle which is an open system
water freezing
cookie dough is baked into a cookie
sugar dissolving into water
Water evaporating in an open system, water freezing, cookie dough baked into a cookie, and sugar dissolving into water are all examples of statements that demonstrate the law of conservation of matter.
What is law of conservation?A conservation law in physics asserts that a specific observable property of an isolated physical system doesn't change over time.A physical property, or measurable amount, does not change over time in an isolated physical system, according to the conservation law, often known as the law of conservation, which is a principle in physics.According to the principle of mass conservation, neither chemical processes nor physical changes can create or destroy mass in an isolated system. The mass of the products and reactants of a chemical reaction must be equal, in accordance with the law of conservation of mass.To learn more about law of conservation refer to:
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Which is the Milky Way?(1 point)
A) A galaxy that does not include our solar system
B) A dwarf galaxy
C) Galaxy containing earth(i think this one is right)
D) Galaxy destroyed in collision
Answer:
C
Explanation:
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
Milky Way can be referred to as the galaxy which contains Earth . The milky way also comprises of other solar systems such as the Sun and billions of stars.
The name 'milky way' came about as a result of how the sky looks when viewing it at night. It contain several bands of color in a milky manner which are usually difficult to differentiate.
The milky way comprises of different processes such as force of gravity acting on it and also the channeling of energy needed to produce stars which aids vision in the night.
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Use the word bank to label the different parts of a microscope.
1.
2.
3.
4.
5.
6.
7.
8.
Answer:
1. eyepiece
2. body piece
3. Adjustments
4. Arm
5. Objective lens
6. Stage
7. Mirror
8. Base
Explanation:
I hope this helps.
Here's the labeled list of different parts of a microscope using the word bank; Eyepiece (ocular lens), Objective lenses, Arm, Stage, Coarse focus, knob, Fine focus knob, Diaphragm or Iris diaphragm, and Light source (lamp or mirror)
Eyepiece (ocular lens): This is the lens at the top of the microscope that you look through to view the specimen. It typically provides a magnification of 10x.
Objective lenses: These are the lenses located on the rotating nosepiece, closest to the specimen. They come in different magnifications, such as 4x, 10x, 40x, and 100x, and are used to magnify the image of the specimen.
Arm: The arm is the curved part of the microscope that connects the eyepiece and the base. It is used to carry the microscope and provides a handle for holding it securely.
Stage: The stage is the flat platform where the specimen is placed for observation. It may have clips or a mechanical stage to hold the slide in place.
Coarse focus knob: This knob is used for large, rapid adjustments of the focus. It moves the stage up and down to bring the specimen into rough focus.
Fine focus knob: The fine focus knob is used for precise adjustments of the focus. It is used after the coarse focus to bring the specimen into sharp focus.
Diaphragm or Iris diaphragm: The diaphragm or iris diaphragm is located under the stage and controls the amount of light passing through the specimen. It helps in adjusting the contrast and brightness of the image.
Light source (lamp or mirror): The light source provides illumination for the specimen. It can be an electric lamp located at the base or a mirror that reflects natural light onto the specimen from above.
These are the essential parts of a compound light microscope, which is a widely used type of microscope for magnifying and observing small specimens in various fields such as biology, medicine, and materials science.
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Which type of muscle is found only in the heart?
Answer:
b. Cardiac muscles.
Explanation:
These muscles are very thick in order to pump oxygenated blood to all body parts.
[tex].[/tex]
Answer:
B - Cardiac Muscle
Explanation:
The only viable solution is the Cardiac muscle
The cardiac muscle is a rectangular muscle found in the walls of the heart, thus B is the only solution out of the 4 answer choices provided
Hope this helps!
Question 4 (1 point)
Very high wispy clouds formed mostly of ice crystals.
Stratus
Cirrus
Cumulous
can someone help with this please right answers only and dont do #2
Answer: 1. Use goggles, lab coat, and ask instructor about any questions
Explanation:
Which statement is correct concerning the cell walls?
Cell walls do not allow water to enter or leave the cell.
All plants and animals remain rigid because of cell walls.
Woody plants can remain standing without water because of stiff cell walls.
Answer:
Cell walls do not allow water to enter or leave the cell is the correct answer. Hope it helps.
Water is boiling in a clear pot, as shown in the picture.
A clear pot full of water sits over gas burner. The water has large bubbles rising in the water.
Which takes place as water cycles from the bottom of the pot toward the top?
Thermal energy is transferred.
Water molecules gain kinetic energy.
Chemical energy is transferred.
Water molecules gain thermal energy.
THERE WAS NO SCIENCE
Answer:Thermal energy is transferred.
Explanation:just took the test
Which of the following occurs over a small area and is a local wind.
Question 3 options:
horse latitudes
doldrums
polar easterlies
sea breezes
Answer:
My guess is
horse latitudes?
I need this answer right now please help!!!!!
1. Why did the naked egg swell when it is placed in water?
2. Why did the swollen naked egg shrink when it is placed in corn syrup??
Answer:
1.porque la cáscara del huevo es semipermeable, es decir, hay sustancias que pueden pasar al interior del huevo o salir de él. En esta ocasión parte del líquido ha entrado dentro del huevo
2.Los huevos se encogen en el jarabe de maíz debido a la ósmosis. La ósmosis es el proceso por el cual el agua entra y sale de las células a través de una membrana semipermeable.
El agua entra y sale de los tejidos a través de la ósmosis. Durante la ósmosis, el agua entra o sale de la célula a través de la membrana semipermeable de la célula. Esta membrana es esencial para permitir que los materiales vitales entren en las células sin permitir el paso de materiales no deseados o peligrosos. Durante la ósmosis
Explanation:
dame coronita plis me ayudas mucho
1.because the eggshell is semi-permeable, that is, there are substances that can pass into the egg or leave it. This time part of the liquid has entered the egg
2.Eggs shrink in corn syrup due to osmosis. Osmosis is the process by which water enters and leaves cells through a semi-permeable membrane.
Water enters and leaves tissues through osmosis. During osmosis, water enters or leaves the cell through the semi-permeable membrane of the cell. This membrane is essential to allow vital materials to enter cells without allowing unwanted or hazardous materials to pass through. During osmosis
Explanation:
give me a crown, please help me a lot
_____ is the pigment that gives plants their green color.
Chloroplast
Chlorophyll
Cell membrane
Cell wall
strike my first letter, i am still the same. strike my next letter,and i am yet still the same.
what 5 letter word am i?
Answer:
Alone
Explanation:
wait i think
Answer:
Aloneee!!!!
Step to step explanation:
Is this a scientific model? Use complete sentences to explain why or why not. i need help asap!!!!!!!!!!!!!!!!!!!!
Answer:
This is a scientific model.
Explanation:
Since it shows how the water cycle works, and gives us a visual of how it is and what each part does.
Help me out!!
If its right i give you brainliest<3
Also have a great day
Answer: the answer is D
Use the notes you recorded about the evidence and the work you did with your group using the Reasoning Tool to help you write a message to Dr. Moraga about the Mesosaurus’ history. You may wish to use some of the vocabulary words listed in the Word Bank below to help you write.
Question: How did the Mesosaurus fossils on the South American Plate and African Plate get so far apart?
Claim 1: The South American Plate and African Plate moved apart suddenly.
Claim 2: The South American Plate and African Plate moved apart gradually.
I need a 9 sentence paragraph for this
Answer:
Explanation:
im sorry this is all i know
Earth's plates travel at a rate too slow to be experienced by humans. It takes a long time for Earth's plates to travel great distances. The Mesosaurus fossils moved apart gradually over tens of millions of years.
determine which is the control group and which is the experimental group in the following scenario ( Scientists are testing a new kind of aspirin to see whether it will relieve headaches. They give one group of volunteers the aspirin. They give another group of volunteers pills that look like aspirin but are actually sugar pills)
Answer this and you will get brainiest WITH NO VIRUS LINKS OR REPORT YOU
Answer:
The group given the sugar pills.
Explanation:
The control group is the ones given sugar pills because they did not get the experimental aspirin
As the wavelength of a wave increases, the frequency ___________.
remains the same
increases
decreases
Answer:
It would C.) decrease, I hope this helps! : )
the length of a piece of metal that has a melting point of 400 °C. At 20 °C, the metal is 2.3 cm long. The scientist heats the metal to 125 °C. Which of the following is the most likely length of the metal at 125 °C plz answer soon. i really need help :(
•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.
true or false
Answer:
True
Explanation:
The biosphere is the portion of Earth where life occurs -- the portions of the land, water and air in the atmosphere that hold life.
The electromagnetic spectrum is the portion of energy that reaches the Earth from the Sun. However, the human eye can still only detect a portion of that spectrum because of the _____________ of the visible light waves.
amplitude
wavelengths
crests
troughs
Answer: I’m stuck between amplitude and wavelengths but I do think it’s wavelengths.
Correct me if I’m wrong! ^^
The human eye can only detect a portion of that spectrum because of the wavelength of the visible light waves. Therefore, option (B) is correct.
What are frequency and wavelength?The wavelength of the light can be defined as the distance between the two adjacent points of a wave w.r.t. each other. Two crests on a wave are separated by a distance known as wavelength.
The frequency of the wave can be defined as the number of oscillations of a wave in 1 sec. The frequency has S.I. units per second or hertz.
The relationship between wavelength, frequency (ν), and speed of light (c) is as follows:
c = νλ
The part of the electromagnetic spectrum that is visible to the human eye is known as the visible spectrum. The electromagnetic radiation of the visible spectrum is known as visible light.
Human eyes can detect the wavelength of range from 380nm to 740nm. This wavelength range of visible light corresponds to a band of frequency between 405 THz to 790 THz.
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identify the for of energy
(A)mechanical energy
(B)chemical energy
(C)radiant energy
(D)electrical energy
Answer:
Mechanical energy is the energy that is possessed by an object due to its motion or due to its position
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules
Radiant energy, energy that is transferred by electromagnetic radiation, such as light, X-rays, gamma rays, and thermal radiation
The flow of electric charge (usually electrons) is electric current.
Hope this answered the question
When you added the neutron to the atom, what is the new name?
Answer:
Isotope
Explanation: Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. Adding a proton to an atom makes a new element, while adding a neutron makes an isotope, or heavier version, of that atom.
Answer:
an isotope.
Explanation:
Isotopes are two or more types of atoms that have the same atomic number and position in the periodic table and that differ in nucleon numbers.