Transverse wave:
⇨- the way the wave is moving
⟶- Medium - the material it is traveling through
冖- Wavelength - the distance from crest to crest
C - Crest - the highest point on a wave
T - trough - the lowest part on a wave
↕️ - Amplitude - the distance from rest to crest
ྊ - (tinfoil)Wave
Description:
In the beginning of the wave the wavelength is short and the frequency is high so is the energy.and the amplitude is low *i believe* And after the mark of T shown on the image the wavelength is long and the frequency is low and so is the energy and the amplitude is high *i believe*.Amplitude and wavelength are both measures of distance.
Longitudinal/Compressional Wave:
KEYS:
⟶-medium - the material it is traveling through
⇨-way the wave is moving
冖-wavelength - the distance from crest to crest
R -Rarefaction - the opposite of compression
C-Compression - particles are closest together
What method of heat transfer occurs when your skin feels hot outside on a sunny, summer day?
A. Conduction
B. Radiation
C. Vibration
D. Convection
Answer:
B. Radiation
Explanation:
Lol this weekend I got a rlly bad sunburn and ik a lot ab the sun
The method of heat transfer occurs when your skin feels hot outside on a sunny, summer day is radiation. Therefore, option B is correct.
What is radiation ?Energy that emanates from a source and moves through space at the speed of light is referred to as radiation. This energy has wave-like qualities and is accompanied by an electric field and a magnetic field. Radiation may also be referred to as electromagnetic waves.
As a mutagen, radiation has the potential to eventually cause cancer. Radiation has the power to kill cells or harm the DNA within them, which impairs the cells' capacity for reproduction and may ultimately result in cancer. High energy particles flow through your body when radiation is present.
The DNA in our cells can be harmed by radiation. Acute Radiation Syndrome (ARS) or Cutaneous Radiation Injuries can result from high radiation doses (CRI). Cancer may develop later in life as a result of high radiation doses.
Thus, option B is correct.
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HELP ASAP 20 OR MORE POINTS!!!!
In Brian Greene's "A Physicist Explains Why Parallel Universes May Exist", what reason does Greene give for why he believes parallel universes may exist?
Question 1 options:
Worm holes make traveling between parallel universes possible.
There are only so many ways matter can arrange itself within that infinite universe.
He has seen a parallel universe himself.
Scientists have already proven the existence of parallel universes.
Answer:
B: There are only so many ways matter can arrange itself within that infinite universe.
The idea of a parallel universe was supported by Brian Greene on the basis that there are only so many ways matter can arrange itself within that infinite universe.
A parallel universeMatter is anything that has mass and occupy space. The universe as we know it is filled with matter. The theory of multiple universe holds that there could be another universe apart from this one that we know.
This theory was supported by Brian Greene on the basis that there are only so many ways matter can arrange itself within that infinite universe.
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Convert 500.0 mL at 740.0 mm of Hg to its new volume at 780.0 mmHg. 474.4mL
Benzoic acid contains 68.8% carbon, 4.95% hydrogen, and 26.25% oxygen. Find the empirical formula of benzoic acid.
Answer:
C7H6O2
Explanation:
Let;
68.8% of Carbon represents 68.8g
4.95% of Hydrogen represents 4.95g
26.25% of Oxygen represent 26.25g
Next, we convert each gram value to mole value by dividing by their respective molar mass {C = 12, H = 1, O = 16}
C = 68.8/12 = 5.73 mol
H = 4.95/1 = 4.95 mol
O = 26.25/16 = 1.64 mol
Next, we divide each mole value by the smallest (1.64mol)
C = 5.73 ÷ 1.64 = 3.49
H = 4.95 ÷ 1.64 = 3.02
O = 1.64 ÷ 1.64 = 1
Next, we multiply each ratio by 2 to obtain our simplest whole number ratio (empirical formula)
C = 3.5 × 2 = 7
H = 3.02 × 2 = 6
O = 1 × 2 = 2
Hence, the ratio of C, H and O is 7:6:2 and the empirical formula of benzoic acid is C7H6O2
Using the information in the passage, rank the types of galaxies by their ability to form new stars, from most to least activity.
Answer:
The correct answer is number 2. Elliptical, Spiral, Irregular.
Explanation:
Unfortunately, you did not attach the passage. Without the passage, we do not know what its content is.
So we are going to answer this question with our own knowledge.
The types of galaxies by their ability to form new stars, from most to least activity are "Elliptical, Spiral, Irregular."
That is the way astronomers classify galaxies in scientific terms. These scientists consider that the smallest galaxies or dwarf galaxies have approximately 100 million stars. On the other hand, giant galaxies have billions or trillions of stars. That immense is our universe.
Scientists still studying the universe and the galaxies to understand the way galaxies are formed.
What is the density of 1.00 mol of carbon monoxide gas at STP?
Answer:
Density = mass / volume.
If this is an ideal gas then 1mol will take up 22.4L of volume (fact about ideal gases you should remember)
Since you have 1mol then you know the volume of the gas that you have (22.4L)
Now, just convert 1mol of CO to grams.The ptable tells you that the mass of 1 mol of C is 12g and the mass of 1 mol of O is 16g. So the mass of 1 mol of CO is......... :):)
Now you have the mass and the volume, so just divide :) enjoy
can someone please help I will give you the brainliest!!!
A bent molecule containing two hydrogens and one oxygen is known to exist in three phases on earthWhat is the name of this substance
Answer:
Water
Explanation:
Water is a chemical molecule structurally consisting of two hydrogen atoms and one oxygen atom to form the chemical formula, H2O. It is geometrically a bent shape due to electron position in each atom that makes it up.
Water is the only molecule on Earth that exists in the three different states of matter. This means that water can exist in a solid, liquid and gaseous form.
- Water as a SOLID is called ICE
- Water as a LIQUID is called WATER
- Water as a GAS is called VAPOUR
The deflection of earths planetary is example of
Answer:
The Coriolis effect is an apparent deflection in the paths of moving objects caused by Earth's faster speed near the equator than near the poles. In the solar system, the greatest expression of this effect occurs in planetary atmospheres. On Earth, for example, the air around us moves freely above the ground.
Explanation:
help please
According to the data what kind of substance is gastric juice?
A.
it is a weak acid since the blue litmus paper turns red and the pH is 1.7
B.
it is a strong base since the blue litmus paper turns red and the pH is 1.7
C.
it is a strong acid since the blue litmus paper turns red and the pH is 1.7
D.
it is a weak base since the blue litmus paper turns red and the pH is 1.7
Answer:
C. it is a strong acid since the blue litmus paper turns red and the pH is 1.7Explanation:
As per table gastric juice has pH of 1.7 which is the strong acid. If you remember, 0-7 range determines acids and litmus paper confirms that by turning red.
So correct choice is C.
(b)
Magnesium sulphate can be made from magnesium and dilute sulphuric acid.
This is the equation for the reaction.
Mg
+
H2SO4
MgSO4
+
H2
Calculate the mass of magnesium sulphate that would be obtained from 4g of
magnesium
(Show your working.)
Answer:
Reaction
Mg+H2SO4 ----》MgSO4+H2
so calculate the moles of magnesium first
moles of magnesium = given mass of mg/molar mass of magnesium
moles = 4/24.30
moles = 0.1646
One mole of magnesium produces one mole of magnesium sulphate
so 0.1646 moles of mg will produce 0.1646 moles of MgSO4
Mass of MgSO4 = 0.1646× 120.366
MgSO4 = 19.81 gm
conclusion the mass of magnesium sulphate that would be obtained from 4g of
magnesium is 19.81 gm!!
I d k it's right or wrong but i tried :)
The equation to be used to calculate kinetic energy ( E) is
Answer:
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
What makes a gas a gas?
Answer:
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).
Explanation:
1. What is the major determining factor in soil formation? Define this factor and explain how it influences soil formation.
PLEASE HELP ME PLEASE
Answer:
Temperature and precipitation
Explanation:
They determine how quickly weathering will be, and what kind of organic material may be available on the inside of the soils.
Temperature and precipitation is the major determining factor in soil formation. They define the type of organic material that can be present inside the soils as well as how rapidly weathering will occur.
What is soil?The bioactive, porous media that has grown in the top layer of the Earth's crust is known as soil. Being a source of water as well as nutrients, a filter for harmful wastes, a site for their breakdown, and a participant inside the cycle of elements such as carbon through the planet's ecosystem, soil constitutes one of the main substrates of life on Earth.
It has changed as a result of weathering processes influenced by geographical, geologic, biological, and climatic factors. A practical understanding of soils including their management has also developed out of need since the development of agriculture with forestry in the eighth millennium BCE. Temperature and precipitation is the major determining factor in soil formation. They define the type of organic material that can be present inside the soils as well as how rapidly weathering will occur.
Therefore, temperature and precipitation is the major determining factor in soil formation.
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Is biden falling down the stairs funny or is it just me
Answer:
yes it is hilarious
Explanation:
good to find another republican lol
Why is it important for the daughter cells to divide a second time in meiosis?
The second division switches parts of matching chromatids to increase genetic variation.
The second division forms four identical cells to ensure that all offspring have the same
The second division sorts chromosomes into cells that are the same as the parent cells.
The second division forms haploid cells that can combine with other haploid cells during fertilization.
Answer:
The second division switches parts of matching chromatids to increase genetic variation.
Explanation:
Meiosis and fertilization create genetic variation by making new combinations of gene variants (alleles).
Scott and his family recently moved to a large city, where the air sometimes looks hazy from smog. These four steps could result in the formation of this smog:
Ozone forms.
Polluting gases react with sunlight.
Temperature inversion traps pollution.
Cars emit hydrocarbons and nitrogen oxides.
Which answer shows the order in which these steps occur?
A. 1, 2, 3, 4
B. 1, 2, 4, 3
C. 4, 1, 2, 3,
D. 4, 2, 1, 3
Answer:
D. 4, 2, 1, 3 is the correct answer.[tex] \infty \infty [/tex]
Identify the element whose ion can exist as 2+ or 4+?
A) Sodium
B) Lead
C) Sulfur
D) Calcium
Which abbreviation is
a unit of energy?
°C
cal
K
W
Answer:
cal is an abb
Explanation:
meaning calories
2. Energy that is stored in an object because of its temperature is called ___________________. *
Answer:
Thermal Energy
Explanation:
The thermal energy of an object increases as the temperature increases, causing atoms and molecules to move faster. When the temperature decreases, the thermal energy decreases, causing atoms and molecules to move slower. Another term for thermal energy is heat energy.
Help, please :] What are the products of the reaction between magnesium and silver nitrate??
Answer:
magnesium(s) + silver nitrate(aq) → magnesium nitrate(aq) + silver(s). The reducing agent in this reaction is the Mg as it will donate electrons to the silver ions .
Explanation:
Assume that you have to prepare a 200 g salt solution, and the concentration must be 15 % by mass. How many grams of solute and water you must mix together.
Answer:
170 g
Explanation:
w/w% concentration = mass of solute/ mass of solution * 100
mass of solute = x
mass of solution = 200 g
w/w% concentration = 15 % by mass
15 = x/200 * 100
15 = 100x/200
200 * 15 = 100x
x = 200 * 15/100
x = 2 * 15
x = 30g
But mass of solution = mass of solute + mass of solvent
mass of solute = 30g
mass of solvent = mass of solution - mass of solute
mass of solvent = 200 g - 30 g
mass of solvent = 170 g
What is PO3 compound name?
Answer:
PHOSPHITE ION is the correct answer.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Mrs. Franklin decides to use her new aluminum pan to scramble eggs. She wants to determine how much heat energy will be needed to
heat her aluminum pan from 20 degrees celsius to 220 degrees celsius. She obtains the specific heat of aluminum from the reference
table. It lists the specific heat of aluminum as 0.90 N/kg*degrees celsius. The pan has a mass of 0.5 kg. She does the calculation
correctly. Which one of the following is her answer?
Your answer:
0.45 joules of heat energy
O 0.9 kilojoules of heat energy
O 90 kilojoules of heat energy
180 joules of heat energy
Answer:
90 kilojoules of heat energy
Explanation:
I don't really know why this is just the answer to it on my quiz so if someone else can explain.
Place the characteristics for each phase of matter into the table where it belongs
Answer:
Solid- Definite shape
Solid and Liquid- Definite volume, Not easy to compress, if at all
Gas- No Definite Volume
Liquid and Gas- No Definite shape
The characteristics for each phase of matter in the table where it belongs are as follows:
Solids: Definite shape, very little particle motion. Liquids: Fluid motion. Gases: No Definite Volume, easily compressed. Solids and liquids: Definite volume, Not easy to compress, if at all. Liquids and Gases: No Definite shape, constant, fast particle motion. What are the different States of matter?The states of matter may be defined as the three distinct physical forms which matter can take in most environments. They are as follows:
Solid.Liquid.Gas.Each of the states of matter significantly possesses specific chemical and physical properties. For example, solids generally have a definite volume, are relatively rigid, and atoms or molecules are attached to each other very compactly.
Liquids possess a definite volume and have the ability to alter their shape through flowing. The atoms are loosely bonded to one another.
Gas has no definite volume or shape. This state of matter is easily compressed as well.
Therefore, the characteristics for each phase of matter in the table where it belongs are well described.
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Which of the following is a lanthanide?
A.gold(au)
B.barium(ba)
C.europium(eu)
D.americium(am)
If an atom has an atomic mass of 101 and atomic number of 44, how many neutrons does it have?
4. Ionic compounds conduct electricity when they are in the __ state
Answer:
Salts do not conduct electricity at the solid state since the ions are in a fixed position in the lattice. However, at the molten state or in solution, the ions are free and they can move within the liquid phase to serve as electrons shuttles and therefore, they become conductive.
Explanation:
Can somebody plz help and these t or f questions correctly (only if u really know the correct ones) thx sm! :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDDD
Why should we try to use less oil, natural gas and electricity?
Which process causes Earth's surface to warm?
the conduction of heat by air above Earth's surface
the radiation of the Sun's electromagnetic waves
the convection of warm air from the atmosphere
the reflection of electromagnetic waves off bodies of water
Answer:
its B
Explanation:
yes
Answer:
BBBBB
Explanation:
B
