A boat is traveling to the right at 300 N, the current is going to the left at 600N. What is the net force and direction?
A fireman feels the heat from a fire before he even gets up to it. This is caused by ___.
a conduction
b convection
c radiation
Answer:
C. Radiation
Explanation:
The shape of the illuminated portion of the Moon as seen by an observer, usually on Earth:
1. Lunar Eclipse
2. Solar Eclipse
3. Moon Phases
4. The Sun
Answer:moon phases
Explanation:
Moon phases because the moon phases changers every day
Plz helpppp
1. What causes a delta to form at the mouth of the river?
A. Wind
B. Water
C. Ice
2. A cliff forms by the ocean. (Erosion)
A. Wind
B. Water
C. Ice
Answer:
Water
Water
Explanation:
Answer:
1 Water 2 wind
Explanation:
is the answer
List ten sources of water pollution.
What would u write in a THESIS for Piney Woods?
GIVING BRAINLIST WHO EVER ANSWERS WITH PARAGRAPHS!
Answer:
Your thesis statement belongs at the end of your first paragraph, also known as your introduction. Use it to generate interest in your topic and encourage your audience to continue reading.
Explanation:
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Answer:
There is not a wrong answer for creating a thesis. The thesis reflects the many opinions you have towards the particular script. Use what you have learned from reading this and create a morale. If you have an opinion about it, try clearly stating it. Anything works. Just think of it as a bridge. Can it support the many ideas you have? REMEMBER stay on track and dont over think it!
Explanation:
Fill in the chart to describe and give examples of physical changes.
Answer:
here are some examples of physical change!!!
Explanation:
-An ice cube melting into water in your drink.
-Freezing water to make ice cubes.
-Boiling water evaporating.
-Hot shower water turning to steam.
-Steam from the shower condensing on a mirror.
Answer:
Examples:
Melting an ice cube.
Boiling water.
Mixing sand and water.
Breaking a glass.
Dissolving sugar and water
2. Calculate: For each object, substitute the values you know into the gravitational potential energy equation to solve for weight. Record each object's weight in the fourth (science)
Answer:
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Explanation:
The __lithosphere__ combines the two crusts, oceanic and continental, with the coolest part of the __________________. The asthenosphere allows the tectonic plates to slide on the putty substance of the mantle and the mesosphere is the ___________________ part of the mantle. The outer core is hot enough to turn the metal into a ________________. The inner core is the hottest but the extreme pressure makes it a ________________.
Answer:
And the upper mantle, Crust, Smallest, Liquid ,Solid
Explanation:
Scientists approximate that there are 20 billion stars like our sun in the Milky Way.
Why does the sun appear to be brighter than any other star in the Milky Way?
A.the sun is older than all of the other stars in the Milky Way
B.the sun is closer to the earth than any other star in the Milky Way
C.the sun is hotter than any other star in the Milky Way
D.the sun has more energy than any other star in the Milky Way
Answer: B.) the sun is closer to the Earth
Answer:
C
Explanation:
the sun is really hot so that is why
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Which set of coefficients would balance the following equation?
Mg + AlCl3 → Al + MgCl2
A. 2Mg + AlCl3 → Al + 2MgCl2
B. 3Mg + 2AlCl3 → 2Al + 3MgCl2
C. Mg + 2AlCl3 → 2Al + MgCl2
D. 3Mg + 4AlCl3 → 4Al + 3MgCl2
The chemical equation which is balanced according to law of conservation of mass is 3 Mg + 2 AlCl₃ → 2 Al + 3 MgCl₂.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Drinking water has two sources. It can come from surface water, such as reservoirs or rivers. Or it can come from groundwater where it either naturally surfaces in a spring or where it must be pumped to the surface from a well. Where does your drinking water come from?
82% of drinking water supplies in Ireland are sourced from surface water (rivers and lakes) and 18% comes from groundwater - it depends where you live (quick g00gle search should answer you question)
Our drinking water comes from the underground sources like wells, hand pumps, etc.
What are the sources of water?Sources of water are the places from where the water comes to earth for the uses.
In our houses drinking water comes from the underground sources, through the wells, hand pumps, etc. From that source we get natural water for the drinking purposes.
Hence we get water from underground sources.
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“The use of fossil fuels by human’s is heating up the atmosphere” is an example of a law or theory? Explain your answer in at least 3 sentences.
Answer: Theory
It is a theory which is true because it is not a law. A theory by definition is “ a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena.” A law is “a rule defining correct procedure or behaviour in a sport.“ Therefore since this a scientific fact and it is used/ not against the law it is a theory
Explanation:
How is salinity affected?
(a) evaporation increases
(c) freezing increases
(d) melting increases
(e) precipitation increases
Where does the energy that causes evaporation come from?
What role does gravity play in the water cycle?
Describe the flow of one molecule of water through the water cycle, beginning in the ocean.
Answer:
A and E.
Explanation:
When water evaporates, it leaves the salt. When rain falls, the salt is diluted. The sun causes the evaporation. The also the sunlight is the energy source, the greatest force propelling the water cycle is gravity. Gravity is the force of attraction between two objects, and Earth’s gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. Also Water travels in a continuous path through Earth called the water cycle. The journey starts in the Earth's oceans. As the Sun heats the ocean, the water evaporates into a gas. The gas meets cooler air, and the gas changes into droplets of tiny water molecules. This process is called condensation. Little droplets of water fall back down to Earth again as precipitation. The precipitation fills up the rivers and various other things and the cycle begins all over again. Now with this being said, there is much more than just this!
Good luck!
The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage treatment plant, or it might be directly discharged into a body of water. Where does your water go after it goes down the drain?
Which property of physical changes explains why matter is conserved in a physical change? The arrangements of particles do not change, and the bonds between atoms do not break.
Mass, not energy changes in a physical change.
Energy and mass change in a physical change.
The bonds between atoms do not break, it's only the arrangement that changes.
Mass is the amount of matter in an object, and weight is the downward pull on an object due to gravity. Which property of physical changes explains why matter is conserved in a physical change? The bonds between atoms do not break; it is only the arrangement that changes.
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What are the two things needed to make earth habitable, according to the video
How does Dr.Edgar cause what she knows about the earth to learn about mars?
Link to the video: maybe can get to the comments
Answer ian rlly kno ...........
What type of erosion cause a canyon form?
water
wind
ice
Answer:Water
Explanation: none
If two people attempt the same maneuver, what determines the amount of force that each is required to exert?
Answer:
Explanation:
you need to change either the turn of the jump or push off higher or lower from the wall
If the two individuals start at the same position and time, the amount of force exerted by each person is determined by mass of the person.
The amount of force exerted by each person is given by Newton's second law of motion, which states that the force exerted by an object is directly the proportional to the product of mass and acceleration of the object.
F = ma
where;
F is the applied forcem is the mass of the objecta is the acceleration of the objectThus, If the two individuals start at the same position and time, the amount of force exerted by each person is determined by mass of the person.
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What is the average thermal energy of ice?
Answer:Ice doesn’t have a thermal energy.
Explanation:
a
a decrease in the number of zebra mussels along the waterways
b
an increase in the number of zebra mussels along the waterways
c
no effect because more time is needed to determine an outcome
d
no change in the number of zebra mussels infecting the waterways
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How do the light rays emitted by a candle travel?
Answer:
Explanation:
The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.
Answer:
The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.
Explanation:
describe what is happening to rock climbers’ body systems and cells at the small scale.
Answer:
It is being pressured!
Explanation:
The pressure point changes so people aren't used to that certain pressure
As a rock climber climbs higher, the systems and cells experience a decrease in pressure.
Pressure decreases with height. Hence, the higher you go, the lesser the pressure becomes and this may have obvious implications on the cells and systems of a rock climber.
As air pressure decreases at higher altitude, a rock climber may find it difficult to breathe because of the sudden decrease in air pressure hence the respiratory system is affected.
Prolonged exposure to high altitudes may lead to a decrease in the amount of oxygen in blood causing the heart to pump harder.
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I NEED HELP WITH BOTH QUESTIONS PLZZ!!!!!!!!
Answer:
Volcanoes erupting
Sea levels rising, glaciers melting
Explanation:
Ion kno bout the second one but I kno the first one is right
How would the amount of force needed to keep the kite in the air change if it were made out of a heavier material instead of a lighter material?
(A)The amount of force needed would be greater.
(B)The amount of force needed would be the same.
(C)The amount of force needed would go up and down with the kite.
(D)The amount of force needed would be smaller.
The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage treatment plant, or it might be directly discharged into a body of water. Where does your water go after it goes down the drain?
Answer:
Sewage Treatment
Explanation:
I am sorry if I got this wrong but if I did please correct me!
need help on queston 4 and 5
Fill in the chart to identify how scientists represent matter and chemical changes in matter.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side
A chemical symbol is a notation of one or two letters representing a chemical element
A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.
When potassium metal is added to water, a violent reaction occurs that releases a tremendous amount of light and thermal energy. This is an example of an _________ reaction.
1). endothermic
2). exothermic
Answer:
An Exothermic reaction.
Explanation:
An exothermic reaction produces heat, while endothermic reactions absorb heat