Answer:
D
Explanation:
Velocity =position divide by time
Maximum position is 12
Maximum time is 12
12/12=1
What is your carbon footprint?
A: the amount of carbon dioxide you use when recycling
B: the amount of oxygen put into the atmosphere due to your consumption of fossil fuels
C: the amount of carbon dioxide and oxygen in the atmosphere at any given time
D: the amount of carbon dioxide put into the atmosphere due to your consumption of fossil fuels
Answer:
D
Explanation:
According to WHO, a carbon footprint is a measure of the impact your activities have on the amount of carbon dioxide (CO2) produced through the burning of fossil fuels and is expressed as a weight of CO2 emissions produced in tonnes.
please help me 7th grade science
When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.
PLEASE ANSWER QUICKLY!!!!! Which of the following is NOT a function of your integumentary system?
A) Protecting against infection
B) Synthesizing vitamin D
C) Maintaining Fluid Balance
D) Stabilizing blood pressure
Answer: Must be a trick question.
Explanation: All of these are a function of the integumentary system.
he diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. Before the change, the atoms are close together but are able to slide past one another.
A diagram has a triangle at center with gas on top, liquid on bottom right, solid on bottom left. An arrow from gas to liquid is labeled O, and an arrow from liquid to gas is labeled N. An arrow from solid to liquid is labeled P, and an arrow from liquid to solid is labeled Q. An arrow from solid to gas is labeled L, and an arrow from gas to solid is labeled M.
Which arrow represents the change of state described above?
M
N
P
Q
Answer:
The correct answer is P
Explanation:
Analyze this map and provide 10 specific examples of weather conditions found in
this map. Number your examples from 1-10 and use the textbox. Give detail.
Answer:
May be thay can be tropical in south east and wet in middle, hot in west and cold in north.
Explanation:
(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))
BRAINLY ME PLEASE IF HELPFUL!!!
piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap
Answer: Food
Explanation:
The rat smells the food or sees the food it goes towards the food to eat it.
Give an example, other than making ice-cream or a slushy, where the effect of salt on the phase change of water is useful in everyday life.
ASAP PLS AND THANK YOU
Answer:
Putting salt on the ground to melt ice or snow I mean.
Explanation:
How do the properties of each of these materials vary? Paper and Cardboard, Plastic, Wood, Metals
PLEASE HELP NOW
The properties of all of these material vary from each other. Paper, cardboard and plastic are insulators and metals and conductors. Each of them has different physical properties.
What are physical properties ?The physical properties of a substance include properties which changes its physical structure, size, shape, phase etc. Solubility, conductivity, resistance etc. are also physical properties.
Here, paper, cupboard and plastic are insulators and they does not conduct electricity. Whereas, metals are very good conductors and they have wide range of applications in optoelectronic devices.
Each of these materials has different melting temperature and different uses. Their density also vary significantly. The paper is the less dense one here and metals are denser.
The applications of these materials are based on their physical properties.
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PLZZ HELP
Florida was experiencing one of the coldest winters ever recorded in that state. The temperature even dropped to a low of 32 degrees Fahrenheit in Miami. It snowed in some parts of Florida.
Is this describing weather or climate??
Imagine you are part of a group of engineers who need to test a scale model of a footbridge. It will be a $\frac{1}{20}$120 scale model of the bridge. The footbridge will cross over a busy road and allow people to cross the road safely. How could a relatively small design error of 2 centimeters in the model system cause a significant problem in construction of the bridge?
Pls help me u will get branilest pls help me
Answer:
The problem will be because:
The error in the construction of the bridge will be actually 40 cm.
Explanation:When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error.
Fill each box with the chemical formula of the compound.
Are pizza boxes recyclable?
The pH of solution A is 4 and the pH of solution B is 6. Which has a greater concentration of H3 O +ions and how many time greater? Your answer should include a letter (which solution) and a number. PLEASE ANSWER QUICK IN A TEST
Answer:
Each whole pH value below 7 (the neutral point) is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6.
Explanation:
pls help por favor i dont understand
Answer:
It's C!
Explanation:
when the amplitude was doubled the energy went up 4x
HELP ASAP!! An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Answer:
observations (2), (3), and (4) provide strong evidence that a chemical reaction occurred.
Explanation:
Observations (2), (3), and (4) are evidence of a chemical reaction because a precipitate formed, energy was released (the bottom of the beaker felt warm), and bubbles were formed in the water. Observation (1) indicates a physical change, not a chemical reaction.
God, cure my stupidity.
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
What kind of value does biodiversity have within an ecosystem?
Responses
A. Ecological value
B. Recreational value
C. Economic value
D. All of the other answer choices
Answer:
A. Ecological value
Explanation:
Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"
Which best describes why a scientist would ask a different question than this one?
O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.
Answer:
C
Explanation:
scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.
btw this is where the crown is on the bottom of the question
Answer:
c
Explanation:
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Choose all the answers that apply.
Nitrogen has an atomic number of 7. Its atomic mass is 14. Nitrogen has _____.
seven electrons
seven neutrons
seven electron shells
23 neutrons
14 electrons
Please help (:
Frank has an eraser It has a mass of 4g and a volume of 2ml What is its density hint Density equals mass and volume
Answer:
its 16ml
Explanation:
Answer:
it is 16ml
Explanation: I just want to help and get points♀️
pls i need answers to the 1st, 2nd, and 3rd question
I believe number one has 2 valance electrons
number 2 has 1 valance electron
and number 3 has 8 valance electrons
valance electrons are the electrons on the outermost ring
1. the rate of change in an object's position over time is called what
2. the type of energy that is the sum of kinetic and potential energy at any given time is what
3. A push Or pull that can change the motion of an object (examples: magnetic force, frictional force. Please Help me this is due tomorrow
Answer: 1 . velocity 2. total mechanical energy. 3. magnetic force
Answer:
1. Rise over run, slope, or velocity
2. Mechanical Energy
3. Temperature
It is a broad question
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
What is the charge on the Cr in Cr2O72-
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
need help badly please !
Answer:ok
Explanation:
How can temperature lead to weathering of rocks? (1 point)How can temperature lead to weathering of rocks? (1 point)
a. Rocks become ice when they get cold, which can later melt and wash away.
b. Rocks can melt when they become hot, which can lead to pieces breaking off.
c. Rocks expand and contract when they are heated and cooled which cause them to break.
d. Rocks move faster when they are heated, which can cause the pieces to eventually
Which part of Earth experiences physical weathering? (1 point)
a crust
b inner core
c mantle
d outer core
Which is the last stage of physical weathering in rocks? (1 point)
a boulder
b pebble
c sand
d rock
What must be present on a rock that undergoes frost wedging?(1 point)
a sharp edges
b round shape
c holes around it
d crack
Rocks expand and contract when they are heated and cooled which cause them to break. Physical weathering is experienced to the crust of earth. The last state of physical weathering is sand. Rocks that have some cracks are undergoing frost wedging.
What is weathering?Weathering is a geographical process of deterioration of rocks and minerals into parts and eventually into dust and sand. Thermal stress, a phenomenon caused by temperature variations, can also contribute to mechanical weathering.
The expansion and contraction of rock is influenced by temperature changes. The rock's structure deteriorates as this occurs repeatedly. Physical weathering and mechanical weathering disintegrates rocks without any chemical changes and it happens to the earth's crust.
Erosion of rocks eventually results in formation of sand. Frost wedging is a process by which ice erodes the rocks having cracks. It is also called ice wedging.
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Answer: How can temperature lead to weathering of rocks= Rocks expand and contract when they are heated and cooled which cause them to break.
Which part of Earth experiences physical weathering= crust
Which is the last stage of physical weathering in rocks= sand
What must be present on a rock that undergoes frost wedging= a crack
Explanation: I took the test
2. Each year, volunteers of the local WaVE (Waves are Very Exciting) group hold an annual meeting for new members. This year you have been asked to give the introductory speech at the meeting in which you will explain to members the importance of waves in the world. Your two-paragraph speech should include the following:
• general properties shared by all waves.
• how waves affect matter at the macroscopic and particle levels.
• the difference between the three types of mechanical waves.
The speech should be appropriate for a formal audience, and must include a topic statement, transition phrases, and the science vocabulary from the word bank.
WORD BANK
longitudinal wave
mechanical wave
medium
surface wave
transverse wave
wave
wave cycle
wave pulse
Candice did an experiment where wondered if temperature affects how cheese molds. She put a piece of cheese next to a different heat lamp and then measured how much mold was on each cheese. What is the DEPENDENT variable?