Answer:
A
Explanation:
I think this is true letter a
Balance the following equation
As we approach fall, the trees begin to drop their leaves. If a leaf, with a mass of 0.00006 kg, drops 3.66 meters from the top of a tree and the acceleration due to gravity is 9.81 m/s2. Calculate the force at which the leaf will hit the ground.
(F = m * a)
What must occur in order for matter to change states?
A.
A chemical change must occur.
В.
The temperature must change.
C. Heat must be added or removed.
D.
Other substances must be added.
Answer:
C. Heat must be added or removed
Explanation:
When matter changes states it is due to the overall loss or gain of heat. In addition, heat being added or removed is what will cause a temperature change, but a simple temperature change is not enough to change states. For example, a temperature could go from 50 degrees to 51. This will not cause a change in states. So heat must be added or removed in order for matter to change states.
The model represents how electromagnetic radiation transmits energy.
What does the model show?
A. Many light waves traveling away from a source
O B. Two light waves traveling perpendicularly to a source
C. Several light waves circling a source
D. A single light wave traveling away from a source.
The model represents where electromagnetic radiation transmits energy should be option d. A single light wave traveling away from a source.
What is electromagnetic radiation?It is the energy that should be transmitted at the fixed velocity via the sinusoidally that varied from the electric and magnetic fields.
Here the frequency of variation of the energy should be presented by the Greek letter ν.
Hence, the option d is correct.
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The model depicts the transmission of energy by electromagnetic radiation. The model depicts a single light wave departing from a source.
What describes the light as electromagnetic waves?Light as a wave: Light is a type of electromagnetic wave that can be represented mathematically (described). A shifting magnetic field is produced by a shifting electric field, according to this paradigm. Light is produced when the electric field changes as a result of the changing magnetic field.Light can be thought of as a wave. Light is a type of electromagnetic wave. A fluctuating electric field, according to this hypothesis, generates a fluctuating magnetic field. The interaction of a changing magnetic field with a changing electric field produces light. When charged particles, such as electrons and protons, move, they generate electromagnetic fields, which transport the type of energy known as electromagnetic radiation, or light.To Learn more About electromagnetic radiation, Refer:
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8.
A student measured the mass of a rubber stopper to be 6.00 grams. When it was placed into a
graduated cylinder that initially had 2.0 mL of water, the water went up to the 5.0 mL of water. What is
the density of the rubber stopper?
a) 3.0 g/mL b) 1.2 g/mL
d) 0.60 g/mL
e) none of these
$) 2.0 g/mL
Answer:
A
Explanation:
Because you subtract the amount it was after it want up by the initial amount
Which statements accurately describe volume? Check all that apply.
1. Volume is a physical property of an object.
2. Volume is measured using a balance.
3. The volume of a solid changes with the shape of the container.
4. One unit of volume is the milliliter.
5. Liquids and solids have constant volume.
Answer:
the answer is the number three
Answer: the right answer is 1,4&5
what is the molecular formula of zinc nitrate by criss cross method
Explanation:
zinc nitrate
zn no3
valency :
2 -1
So, zn(no3)2
How do magnetic stripes show the history of Earth's magnetic field?
A. As you move away from an ocean ridge, the rocks get older.
B. As you move away from a coast, the rocks get younger.
C. As you move down through the seafloor, rocks get older.
D. As you move eastward along a continent, rocks get older.
The way that magnetic stripes show the history of the Earth's magnetic field is A. As you move away from an ocean ridge, the rocks get older.
What do magnetic strips show of Earth's history ?By looking at how our planet's magnetic field changes throughout time, scientists may estimate the age of the seafloor. A geomagnetic reversal is the periodic reversal of the currents in the liquid core that generate the Earth's magnetic field. Throughout Earth's history, this has occurred frequently.
When researchers examined the seafloor's magnetic characteristics, they found normal and reversed magnetic stripes of varying widths. These magnetic patterns are symmetrical on both sides and parallel to the mid-ocean ridges.
Away from midocean ridges, they observed that the age of the bottom became progressively older.
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Green plants convert light energy from the sun into what during photosynthesis
Answer: It turns the energy from the sun into a food for the plant.
I hope this helps, and Stay Safe! :)
it tuns the light into food
How many moles of carbon are there in 5 g of carbon?
Answer:
0.416666667
Explanation:
number of moles= mass of sample ÷ molar mass
=5÷12
=0.41666667
The number of moles of carbon are there in 5 gram of carbon is 0.41 moles.
How do we calculate moles from mass?Moles of any substance will be calculated by using the mass by following the below equation:
n = W/M, where
W = given mass of carbon = 5g
M = molar mass of carbon = 12g/mol
On putting values, we get
n = 5 / 12 = 0.41 moles
Hence required moles of carbon is 0.41 moles.
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Which term refers to the ability to do work?
energy
power
force
motion
Answer:
Energy
Explanation:
Answer: energy
Explanation:just learned it last month
How many grams of O2 are in 1.51 x 1023 molecules?
Group of answer choices
8.00 g
0.251 g
4.00 g
16.0 g
Answer:
I think is c 4.00 g
Explanation:
that was my answer
a Gardner crosses a plant with red flowers with one with white flowers. each plant is pure for its trait for flower color
if the gene for the flower color shows incomplete dominance what kind of coloring will the flower on the offspring plants most likely have
a. white and red
b. red only
c. pink only
d. white pink
Answer:
Pink only
Explanation:
AP3X
A red-colored female New Hampshire Red chicken mated with a red-colored male New Hampshire Red chicken and produced golden-colored offspring. Which statement best explains how the offspring could inherit a trait not shown in the phenotypes of either parent?
Answer:
See the answer below
Explanation:
The statement that could best explain how the offspring could inherit a trait not shown in the phenotypes of either parent would be that both parents are heterozygous for the red color.
Heterozygous parents can produce offspring with a phenotype that is distinctly different from that of either parent if the recessive alleles come together during random fusion of gametes.
Let us assume that the red color (R) in the New Hampshire chicken is the dominant one and the recessive one is the golden color (r). The genotype of the heterozygous parents would be Rr.
Rr x Rr
RR Rr Rr rr
There is a probability (1/4) of producing a golden color chicken (rr), a trait that is not displayed in either of the parents.
Please Help ASAP Students set up a controlled experimernt. They put five
crickets in each of three identical containers. They set one
container to 15C, one to 20°C, and one to 25°C. Then they
count the number of cricket chirps in each container during
1 hour. What are the two constants in this experiment? You have to pick to answers.
A: The number of crickets in each container.
B: The temperature of each container.
C: The number of cricket chirps.
D: The kind of containers used.
Answer: A
Explanation:in learned this last year:)
A: The number of crickets in each container. and
C: The number of cricket chirps.
are possibly the right answers
The following model was used to show a molecule of methane, or CH4. Describe the number and type of each atom of the molecule. Fill blank boxes with the right answer. The blue sphere represents atom(s) of the element The red sphere represents atom(s) of the element
Answer:
Also attached model picture
Explanation:
This question is incomplete because it does not include the image of the model. But it can be answered based on my previous knowledge.
A CH4 atom has 4 hydrogen atoms and 1 carbon atom.
Methane is a chemical compound classified as a hydrocarbon whose chemical formula is CH4. This compound is found in nature in the form of a gas and has no odor or color. It originates as a result of the decomposition of plants.
According to its chemical formula CH4, it can be inferred that methane is made up of one carbon atom and four hydrogen atoms.
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7.62 x 10^23 molecules of CO2 are contained in a tire. How large is the tire (in liters)?
Answer: 7.62e+23
Explanation:
The membrane enclosing the nucleus of an eukaryotic cell is
called the nuclear ___
Answer:
It's called the nuclear envelope.
how to name iupac compounds
Answer:
In order to name organic compounds you must first memorize a few basic names. These names are listed within the discussion of naming alkanes. In general, the base part of the name reflects the number of carbons in what you have assigned to be the parent chain. The suffix of the name reflects the type(s) of functional group(s) present on (or within) the parent chain. Other groups which are attached to the parent chain are called substituents.
what is the chemical formula of tetranitrogen tetrabromide?
lennox needed $5400 to buy a refrigerator.
he borrowed this sum of money years at 13% per annum from a bank .
how many dollars does he owe the bank?
Answer:
he owes the bank 87%
Explanation:
Please help its easy but i don't feel like doing it
Looking at the hills for the drawing of the roller coaster above complete the following statements with the correct answers.
At Point___ will have the most potential energy (the most ability to do work) because it is the (Highest or lowest) point on the coaster.
At point___ the roller coaster would have the most kinetic energy (energy of moving) because it will be going the (Fastest or slowest)
Answer:
first one is a second one is e
Explanation:
Name the three types of adaptations
Answer:
behavioral, physiological, structural
Explanation:
hi Hope's this helps lapras
I Whoever answers correct I’ll give you a Brainly
Answer:
D. An endothermic reaction absorbs energy, and an exothermic reaction releases energy.
Explanation:
Endothermic reactions absorb things such as heat while exothermic reaction would do the opposite and release the heat or energy.
What is responsible for the blue sky?
Answer:
The blue color of the sky is caused by the scattering of sunlight off the molecules of the atmosphere.
Explanation:
Answer:
sun shine
Explanation:
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time
2 KClO3 (s) → 2 KCl (s) + 3 O2 (g)
how many atoms are in 3.2 moles of KCl?
Answer:
If u use math why It will give u the answer like 3x3=9
Explanation:
Write one paragraph!!!!!reasons why the minimum wage should be increased.
Answer:
There are pros and cons, I will explain mostly pros. After all the pros outweigh the cons.
Explanation:
Increasing the minimum wage can be letting people work less or earn more. This can have a major impact on the economy in America. It can reduce poverty within some families households. A con concerning this though is that people who work for low pay can lose their jobs and their family can become poor. It can also affect the federal minimum wage.
Hopefully this helped you out a lot. Please make sure to make my answer brainliest. Have a great rest of your day or night
Answer:
Minimum wage increases allow people to work less and earn more. This may have a significant influence on the American economy. It can help some families get out of poverty. People who labor for little compensation risk losing their employment and being unable to provide for their families, which is a drawback. As a result, the federal minimum wage may also be affected.
Explanation:
plzzz brainlest
in the equation 3x-3=18 what is x?
Answer:
x=7
Explanation:
3x-3=18
-3 moves over the 18 side and becomes +3.
18 + 3 =21
3x=21
now you need to divide 3 with 21 giving you 7
Answer:
The answer is seven bc X is seven.
Explain what the difference is between chemical properties, extensive physical properties, and intensive physical properties.
ill award brainliest for right answer
Answer:
Extensive properties, such as mass and volume, depending on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance's chemical identity.
Explanation:
Nitroglycerin contains 60% as many carbon atoms as hydrogen atoms, three times as many oxygen atoms as nitrogen atoms, and the same number of carbon and nitrogen atoms. The number of moles in 1.00g of nitroglycerin is 0.00441. What is the molecular formula?
Answer:
C₃H₅N₃O₉
Explanation:
Molar mass of nitroglycerin (Ratio of mass and moles of the compound) is:
1.00g / 0.0041mol = 226.8g/mol
We can write the equations:
0.6H = C (1)
-60% as many carbon atoms as hydrogen atoms-
3N = O (2)
C = N
Using as basis the atoms of Carbon:
Carbon = 1
Nitrogen = 1
Oxygen = 3
Hydrogen = 1/0.6 = 1.67
A molecular formula has just whole numbers. This ratio of atoms times 3:
Carbon = 3
Nitrogen = 3
Oxygen = 9
Hydrogen = 5
C₃H₅N₃O₉. Molar mass of this formula is:
C = 12.01g/mol*3 = 36.03g/mol
H = 1.01g/mol*5 = 5.05g/mol
N = 14g/mol*3 = 42g/mol
O = 16g/mol*9 = 144g/mol
Molar mass:
36.03g/mol + 5.05g/mol + 42g/mol + 144g/mol = 227g/mol ≈ 226.8g/mol
That means molecular formula of nitroglycerin is:
C₃H₅N₃O₉The molecular formula of nitroglycerin is C₃H₅O₉N₃
Mass of nitroglycerin = 1.00 g
A number of moles of nitroglycerin = 0.0041 mol
It is required to calculate the molecular formula of nitroglycerin.
What is the empirical formula?An empirical formula tells us the relative ratios of different atoms in a compound.
The molecular formula of nitroglycerin can be estimated with the help of empirical formula.
The molar mass of nitroglycerin (Ratio of mass and moles of the compound) is:
1.00g / 0.0041mol = 226.8 g/mol
We can write the equations:
0.6H = C (1)
-60% as many carbon atoms as hydrogen atoms-
3N = O (2)
C = N
Using as basis the atoms of Carbon:
Carbon = 1
Nitrogen = 1
Oxygen = 3
Hydrogen = 1/0.6 = 1.67
A molecular formula has just whole numbers. This ratio of atoms times 3:
Carbon = 3
Nitrogen = 3
Oxygen = 9
Hydrogen = 5
C₃H₅N₃O₉.
Molar mass of this formula is:
C = 12.01g/mol*3 = 36.03g/mol
H = 1.01g/mol*5 = 5.05g/mol
N = 14g/mol*3 = 42g/mol
O = 16g/mol*9 = 144g/mol
Molar mass:
36.03g/mol + 5.05g/mol + 42g/mol + 144g/mol = 227g/mol ≈ 226.8g/mol
That means molecular formula of nitroglycerin is:
C₃H₅N₃O₉
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