When the object is placed in a graduated cylinder containing 175 ml of water, the water in the cylinder rises to a level of 187.5 ml , this implies that volume of content in the container has increased , the increased volume is volume of the object placed
So, Volume of object
= Increased Volume - Initial volume
= > 187.5 -175
= > 12.5 ml
Since 1 ml = 1 cm³ we can write
[tex]\quad[/tex]12.5 ml = 12.5 cm³
Now,
[tex]\green{ \underline { \boxed{ \sf{Density= \frac{Mass}{Volume}}}}}[/tex]
Putting Values -
[tex]\begin{gathered}\\\implies\quad \sf Density = \frac{32.5}{12.5} \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf Density = \frac{325}{125} \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf Density = 2.6 g/cm^3 \\\end{gathered} [/tex]
>> The density of the material is 2.6 g/cm³
What is needed for photosynthesis to take place? (Select all that apply.)
carbon dioxide
glucose
energy
water
all but energy i think but if not its a and d
Explanation:
Answer:
carbon dioxide, water, and sunlight
Explanation:
These things .is needed for photosynthesis to take place. By the way, sunlight is Energy.
The density of a substance is equal to 2.5 g/mL. The sample you have has a mass of 13g. How much space does this object take up?
Answer:
5.2mL
Explanation:
We need to find space
Space = Volume
Volume = Mass / Density
= 13 / 2.5
You get 5.2mL as the answer
Which fossil fuel does the United States have the most reserves of?
HELP QUICK
What are some of the benefits of hydropower? select all that apply
Select 3 correct answer(s)
Question 2 options:
It can also provide flood control and water supply
It is renewable and reliable
It can prevent fish from swimming upstream
It reduces the amount of carbon dioxide released into the atmosphere during energy production
Answer: It can provide flood control and water supply. It is renewable and reliable. It reduces the amount of carbon dioxide released into the atmosphere during energy production. I believe these are the answers.
List the experiment procedures. Some steps have been filled in for you. You may need to adjust the numbers to match the steps you decide on.
HINT: Remember to give enough detail that someone else could easily follow your steps and complete the experiment in real-life.
1. Identify the variables.
2. Write out your hypothesis in an if/then format.
3. Gather your materials.
4.
5.
6.
7.
8.
9. Analyze the data.
10. Write your conclusion.
Answer:
- Independent Variable: Sand, water (variable that changes)
- Dependent Variable: Heat (Sun)
- Control Variables: Environment, container, therometer
Hypothesis: If the sand and water both receive solar radiation, the sand will heat up faster.
Materials:
- 2 thermometers
- 2 plastic boxes (These should be identical)
- Sand
- Water
Procedure:
- Pour sand into one of your plastic boxes to a depth of two inches. Pour water into the other plastic box to a depth of two inches. The sand box will represent land while the water box represents a body of water.
- Place the two boxes in a location that receives direct sunlight and place one therometer in the sand, and the other in the water.
- For a period of 30 minutes, check the temperature of both boxes every 10 minutes. Record the temperatures in a chart/graph
Observations: The temperature of the land (sand) was higher than the water.
Results: Land absorbs much more solar radiation than water, due to the fact that most land surfaces are darker than water, thus attracting heat. Water typically reflects solar radiation that reaches its surface back to the atmosphere. As a result of land absorbing more solar radiation, the land also retains more heat. This validates my hypothesis of the land (sand) heating faster.
Explanation:
You have a sample with a volume of 55.7 mL and a mass of 67.9 g. Will this sample float in water? Why or why not?
Answer:
No it will not
Explanation:
It will not float because the density is 1.21903052065, it needs to be less than 1 to float
Manufacturers who meet the ENERGY STAR standards get to use the ENERGY STAR logo on their products and advertising. Consumers, however, do not get the guarantee their products meet those standards
A. True
B. False
Why are energy jobs on the rise? (Look at the world around you and think about the big picture.)
A. Both a and c
B. There are unlimited natural resources
C. There are limited natural resources that we need to maximize usage of
Answer:
c
Explanation:
The number of jobs in renewable energy worldwide increased in 2020, despite the huge economic disruptions caused by the pandemic, with the growing industry holding up better than fossil fuels. so which means reasourses are limited because of the pandemic and prises on thing rising.
Answer:
c (There are limited natural resources that we need to maximize usage of)
The United States has about which percentage of the world's coal reserves?
A- 5%
B-20%
C-50%
D- 90%
Answer:
B - 20%
Explanation:
Answer:
B
Explanation:
The united states has 22% of the world's Coal reserve so if you round that up its 20%
PLEASE HELP I'LL MARK BRAINLIEST
11.
(06.03 MC)
Two positions of the sun, moon, and Earth are described below:
Position A: Moon and sun are at right angles to each other relative to Earth
Position B: Moon is between the sun and Earth
Which statement is true regarding the type of tides that can occur? (1 point)
A neap tide can occur for position A but not for position B.
A spring tide can occur for position A but not for position B.
A spring tide can occur for both position A and position B.
A neap tide can occur for both position A and position B.
THERE'S NO PICTURE SORRY
Answer:
A neap tide can occur for position A but not for position B.
Explanation: Position B is a spring tide.
Watch the following videos on molecule mixing encapsulators:
Rockwell Retro Encabulator
Virtual Retro Proto Turbo Encabulator
Then answer the following questions:
1) What is the purpose of the 6 hydrotropic marcel veins in the system?
2) Why is the non-reversible tremie pipe so necessary to the main function of the encapsulator?
3) Do you believe it was a good idea to use the technology of the encapsulator to inverse the current in unilateral phase detractors? Why or why not?
Answer:
here you go
Explanation:
label the different parts of the rock cycle where igneous, sedimentary, and metamorphic rock are formed (FIXED)
Answer:
The key processes of the rock cycle are crystallization, erosion and sedimentation, and metamorphism.
Explanation:
What are the ways humans use, collect, and distribute renewable and nonrenewable natural resources?
Your answer should include at least six complete sentences to explain the claim, evidence, and reasoning.
Answer:
Air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Explanation: HOPE THIS HELPS!!!!How do we draw a lewis dot diagram (electron dot diagram) for sodium ethyl xanthate? Please I'll mark brainliest for the correct answer.
Refer to the attachment
Thermal energy circulates through the atmosphere and oceans by the process of convection. Which source of energy drives convection?
a.
nuclear energy
b.
electromagnetic energy
c.
gravitational potential energy
d.
solar energy
An object has a mass of 46.5 g and a volume of 55 mL. What is its density?
Answer:
0.84545454545 g/ml
Explanation:
to find density do mass/volume
Only answer if you know 100% it's correct. this means if you're not sure, DON'T answer.
Answer:
D is the answer
Explanation:
First of all, conservation is when you conserve resources, or use them less, to be better for the environment. Using a gas powered car does not, as carbon monoxide and other toxic gases are sent into the atmosphere. Using a disposable bag is bad because the plastic is sent away to the environment every time you shop. Leaving water running when you brush your teeth wastes water and is bad for the environment. Recycling aluminium cans and glass bottles is good for the environment, and is conserving resources because the cans and bottles are reused, so instead of wasting, you are reusing.
Please leave brainliest! Thanks mate, and hope this helps!
Lab: Thermal Energy Transfer
Answer:
Thermal energy transfers occur in three ways: through conduction, convection, and radiation. When thermal energy is transferred between neighboring molecules that are in contact with one another, this is called conduction.
Hypothesis and Data Collection Part A The image shows three different liquids: water, water with salt, and vinegar. The pH of each liquid was tested as shown. Use the scale to determine the pH value of each of the liquids. Record these values in the chart provided. Under the chart, make a prediction about what will happen when a seashell is placed in each container.
Answer:
The water would be neutral, (usually 7). The salt water would be the same (7) and the vinegar would be very acidic. (probably 2).
Explanation:
A patient comes to the doctors office complaining of gas. Which active ingredients is the physician most likely to recommend for the patient complaints?
As the temperature of a gas increases, explain what happens to its density and why.
Answer:
When a gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. They are less dense.
Only answer if you know 100% its correct. this means if your'e NOT sure, don't answer.
Answer:
D. recycling aluminum cans and glass bottles
Explanation:
it's the only one that makes sense because if its a short trip you should walk, you should use reusable bags, and turn off the water while brushing your teeth.
Hope this helps and have a wonderful day/night/afternoon
Answer:
d. recycling aluminum cans and bottles....
Explanation:
this helps to conserve the materials needed to make those objects, which can then be used to make something else...
Hope this helps!
-heyo
Imagine that you are in charge of helping a town named
Greenville choose the form of energy best suited to the
needs and preferences of its citizens. Use this information
to help you make a decision:
• The people of Greenville want to reduce their reliance
on coal for electricity
• Greenville is located far from any coastlines.
• Greenville has a large amount of productive farmland.
• Greenville weather is calm for much of the year.
Which form of energy would best suit Greenville's needs and preferences?
A. Natural gas
B. Biomass
ОООО
C. Tidal power
OD. Wind power
SUBMIT
Answer:
Biomas is the answer
I am sure about it
just go for it
please right a lot if you can thanks
Answer:
The terrarium model shows the many different aspects of life. The dirt shows the geosphere, which is the ground thaat the plant can grow in. The biosphere is represented by the plant growing, and the hydrosphere is the water that you use to water the plant, and the condensation that will gather on the lid. The atmosphere is the air inside the jar.
Explanation:
Each of the above show how the environment works.
A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other piece has a mass of 25 g.
What is the volume of the smaller one?
Answer:
8.3ml
Explanation:
to get volume u have to divide 25g over the density, i rounded to the nearest tenth, if you don't want to then write out the full number with all the decimals
Please Help me (I'll give brainlest) (LIMITED)
Answer: A) inherited traits
Explanation: theses are all traits that plants can inherit from its parents
A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other piece has a mass of 25 g.
What is the density of the larger piece?
Which of the following is a chemical change?
A. boiling of water
B. melting a cube of ice
C. mixing water and oil
D. splitting water into hydrogen and oxygen
In which of the following places would you MOST likely an organism classified in the domain Archaea?
A.On human skin
B.On sea ice in Antarctica
C.In the field of a wheat farm
D.In a river flowing through a valley
The corrrect answer is B , On sea ice in Antarctica , it is most likely to find Archaea domain .
What is an Archaea Domain ?
These domain include microorganisms that can survive in the most extreme environments , these are classified in Eukaryota, Eubacteria, and Archaebacteria .
On the basis of research it has been found that many of the Archaea domains have been found on the surface water in cold marine environments .
Therefore it is most likely that Archaea domain to be found on sea ice in Antarctica. Hence correct answer is B .
To know more about Archaea Domain : https://brainly.com/question/1475001
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Select the Independent, Dependent and Controlled Variables
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Explanation: