The Moon's appearance as seen from Earth changes
during the 28-day lunar cycle. You can see how the
changes happen by looking at the Sun-Earth-Moon system.
This diagram shows the relative positions of the Sun,
Earth, and the Moon at each point in the cycle.
Last quarter
New
moon
Full
moon
First quarter
Which statement best describes how the phase of the Moon changes from a
full moon to a new moon?
A. Earth moves around the Sun until the Moon is between the Sun
Answers
Answer:
C is correct
Explanation:
The statement that best describes how the phase of the Moon changes from a full moon to a new moon is as follows:
The Moon moves around the Earth until the Moon is between the Sun and the Earth.Thus, the correct option for this question is C.
What are the different phases of the Moon?The different phases of the moon may significantly include the new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, and waning crescent. This cycle of phase change of the moon repeats once a month.
The Earth completes its one rotation around the sun in 365.25 days. While the moon completes its one rotation around the Earth in 29.5 days. The rotation of the moon around the earth leads to phase change of it. This is because when the moon rotates around the sun, it directly or indirectly causes its exposure to the sun where its phase changes.
In the diagram above, when there is a full moon, the earth is present between the sun and the moon. But when a new moon arises, the moon is present between the earth and the sun.
Therefore, the correct option for this question is C.
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Related Questions
How is conduction shown here:
Conduction Transfers Thermal Energy Through Direct Contact
Answers
Answer:
Conduction is the transfer of heat between substances that are in direct contact with each other. ... Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them.
Explanation:
Blood vessels that have valves in them:
Answers
Answer:
veins
Explanation:
veins are the blood vessels which have valves to prevent backwardflow of blood .
plz mark my answer as brainlist plzzzz vote me also hope this will be helpful to you
What are 3 characteristics of creative or "Literary" Nonfiction
Answers
Answer:
Creative nonfiction should (1) include accurate and well-researched information, (2) hold the interest of the reader, and (3) potentially blur the realms of fact and fiction in a pleasing, literary style (while remaining grounded in fact).
I hope it's helpful!
3 kids are pushing on a cart 2 are pushing north at 50 N each. The 3rd is pushing South at -90 N. The net force is _N?
Answers
Answer:
Explanation:
When two forces act in the same direction , they add up and when they act in opposite direction , they subtract .
2 forces each of 50 N act in same direction , so they will add up to give resultant force of 100 N . Now third force acts in opposite direction so 100 N and - 90 N will subtract to give total resultant force .
Resultant force = 100 - ( - 90 ) = 190 N
So net force or resultant force = 190 N .
How has technology changed farming?
Answers
A set of pulleys is used to lift a bookcase. 3000 J of work was done in 60 seconds. How much power was used?
Answers
Answer:
50 Watts
Explanation:
Power = work / time = 3000J / 60 seconds
If there are 20 volts across a 4 ohms resistor, what is the current?
a) 10 A b) 80 A
c) 20 A d) 5 A
Answers
If there are 20 volts across a 4 ohm resistor, then the current is 5A (20/4), which is present in option D, as the current can be measured by Ohm's law and more current means less resistance and less current means there is more resistance.
What is the significance of Ohm's law?It is significant for the understanding of the current and related fields, it can be used to predict the behavior of electrical circuits, it is helpful to design circuits, it gives knowledge of energy efficiency in electrical systems, and it helps in understanding the relationship between voltage, current, and resistance in a circuit.
Hence, if there are 20 volts across a 4 ohm resistor, then the current is 5A (20/4), which is present in option D, as the current can be measured by Ohm's law and more current means less resistance and less current means there is more resistance.
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At what point on a roller coaster is the kinetic energy increasing?
1.At the bottom of the hill.
2.As it is going down the hill.
3.As it is climbing the hill.
4.At the top of the hill.
the wrong answer to just get points = banned
I will give brainliest
Answers
Answer:
2
Explanation:
PLEASE HELP I HAVE BEEN STUCK ON THIS FOR A WHILE.
A long platform is holding your physics teacher in the air above some hungry alligators. Your physics teacher has a mass of 75 kg and is located 2 m from one end. The 10.0 m platform has a mass of 10.0 kg, and its center of gravity is located 4.0 m from the same end. The platform is being held up by two students, one at either end.
a. What force is required by each student to hold the platform up?
Answers
Answer:
See Below.
Explanation:
I can't transpose the diagram onto Brainly. I'll do my best to describe what is going on.
Draw a horizontal line one inch from the each border of the page.To show what each of A and B are supporting, use an up arrow. Label the Ends A and B. B is on the right side.Put the physics teacher about 1.5 inches from B. His force goes down. Label it as 75 * 9.8 NewtonsPut the platform mass about 2.5 inches from BLabel it as 10 * 9.8 NewtonsB is the balance pointNow put in the distances. The lines are horizontalStudent A: 10 metersCenter of mass: 4 meters to BMass of Physics: 2 meters.Now you are ready to develop the equation
Clockwise
There is only 1 force where B is the Balance point that is going clockwise
10 * Force A
The AntiClockwise Moments
Platform: 4*10kg * 9.8 = 392 N m
Physics T: 2 * 75 * 9.8 = 1470 N m
So the Anti Clockwise moments = the clockwise moments.
10 * Force A = 392 NM + 1470NM Divide by 10. Remember that is in meters
Force A = 1862 N M / 10 10 M = 186 N
Does that make some sort of sense? It should Student A is the furthest distance from where all the action is at B. Therefore he is carrying the lightest weight.
Now what is the total force?
(75 + 10 ) * 9.8 = 85 * 9.8 = 833
This is one of those strange things that won't make sense until it does. Read the next sentence carefully. B is carrying most of the weight. Remember Newtons measure weight.
Support of A = 186 N
Support of B = x
Total of A+B = 933
186 + x = 833
x = 933 - 186
x = 647
So the forces are
A supports 186
B supports 647
Samples of different materials, A and B, have the same mass, but the sample of A is higher in density. Which statement could explain why this is so?
A. The particles that make up material A have more mass than the particles that make up material B
B. The particles that make up material B have more mass than the particles that make up material A.
C. The particles that make up material B are more closely packed together than the particles that make up material A.
D. The sample of material A has greater volume than the sample of material B.
It's A
Answers
Answer: B. The particles that make up material B are more closely packed together than apart because that make up material A!!!
Answer:
C. The particles that make up material B are more closely packed together than the particles that make up material
Explanation:
I took the test, good luck! :)
Accurate forecasts require careful study of the location, size, movement, and characteristics of large _____.
fronts
air masses
isobars
precipitation
Answers
Answer: B air masses
Select all the correct answers.
Which chemical reaction involving water is a decomposition reaction (breaking up) and which is a synthesis (building up)
reaction? If you're not sure, take a guess.
Water breaking down into hydrogen and oxygen is a synthesis reaction.
Water breaking down into hydrogen and oxygen is a decomposition reaction.
Hydrogen and oxygen combining to form water is a synthesis reaction.
Hydrogen and oxygen combining to form water is a decomposition reaction.
Answers
Answer:
Water breaking down into hydrogen and oxygen is a decomposition reaction
Hydrogen and oxygen combining to form water is a synthesis reaction
Explanation:
A decomposition reaction is a chemical reaction that involves the breakdown of a chemical reactant entity into two or more simpler product fragments
Water H₂O undergoes a decomposition reaction by breaking down into hydrogen, H₂,, and oxygen, O₂, as follows;
2H₂O (l) → 2H₂ (g) + O₂ (g)
A synthesis reaction is a reaction that involves the chemical combination of two or more dissimilar molecules or atoms to produce a different compound or molecule
Water, H₂O, is formed by a synthesis reaction of hydrogen, H₂,, and oxygen, O₂, combining as follows;
2H₂ + O₂ → 2H₂O
What causes the movement of deep ocean currents?
Answers
If a 2 kg ball is moving at 6 m/s to the right and then hits a wall and bounces back at - 4 m/s (left), what is the change in momentum (in kg*m/s)?
Answers
Answer:
The change in momentum (in kg*m/s) [tex]= 20[/tex]
Explanation:
The change in momentum is equal to
Final Momentum - Initial Momentum
As we know
Momentum is equal to the product of mass and velocity
M = m * v
Thus, change in momentum
[tex]m_2v_2 - m_1v_1[/tex]
here m1 = m2 = 2 Kg
Substituting the given values in above equation we get -
[tex]2 * 6 -( 2 *-4)\\12 + 8 = 20[/tex]kg m/s
Is joules law and Ohm's law same thing or different? Please tell:
Answers
different because joules law talks about heat produce in an electric whiles ohm' law talks about potential difference
PLZZZ HELPPP
1- A positive charge of 3x10-7 is located in a field of 27N/C directed toward the south. What is the force acting on the charge?
2- A positive test charge of 5x10-6Cis in an electric field that exerts a force of 2x10-4N on it. What is the magnitude of the electric field at the location of the test charge?
Answers
Answer:
1) 8.1x[tex]10^{-6}[/tex] N
2) 4.0x[tex]10^{1}[/tex] N/C
Explanation:
1) E = F/q ---> F = Eq = (27 N/C) x (3x[tex]10^{-7}[/tex])
= 8.1x[tex]10^{-6}[/tex] N
2) E = [tex]\frac{F}{q}[/tex] = [tex]\frac{2.0X10^{-4} }{5.0X10^{-6} }[/tex]
= 4.0x[tex]10^{1}[/tex] N/C
FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (22pts)
Answers
Answer:
Its..... friction and normal force, have a good day AheadAnswer:
yo mama
Explanation:
What happens to the speed of light if it travels from water into air?
Answers
Answer:
What happens is that light slows down when it passes from the less dense air into the denser glass or water. This slowing down of the ray of light also causes the ray of light to change direction.
Explanation:
Two waves meet and overlap. The first wave has an amplitude of 4.6 centimeters and the second wave has an amplitude of 2 centimeters. If the waves meet crest to trough, what is the magnitude of the resulting amplitude of the combined wave?
Answers
Answer:
Explanation:
The amplitude of resultant wave as the result of overlap of two waves depends upon the phase difference between the two. If the waves meet crest to trough , the phase difference is 180 degree or they are in opposite phase . Hence they will destroy each other . The amplitude of resultant wave can be obtained by subtracting the amplitudes of two waves. They will interfere destructively.
Amplitude of resultant gives waves = 4.6 - 2 = 2.6 cm.
Use the information and table to answer the following question.
Scientists use either a melting or freezing point apparatus to determine the melting points of the following unknown compounds
as part of their investigation. Based on the melting points, the scientists determine the bond type and record the results in the
table as shown.
Unknown
Compound
Compound 1
Compound 2
Compound 3
Compound 4
772°C
17°C
Melting
Point
960°C
-56°C
Which statement correctly identifies the ionic compounds and why?
A Compounds 1 and 3 are lonic. Because Ionic compounds are composed of oppositely charged ions that are attracted to one
another, they require more energy to melt than covalent bonds.
OB. Compounds 2 and 4 are lonic. Because lonic compounds are composed of oppositely charged lons that are attracted to one
another, they require more energy to melt than covalent bonds.
OC. Compounds 2 and 4 are lonic. Because covalent compounds are composed of oppositely charged lons that are attracted to one
another, they require more energy to melt than lonic bonds.
OD Compounds 1 and 3 are lonic. Because covalent compounds are composed of oppositely charged ions that are attracted to one
another, they require more energy to melt than ionic bonds.
Answers
Answer: The answer is A
Explanation: I took that test already
Compounds 1 and 3 are ionic. Because Ionic compounds are composed of oppositely charged ions that are attracted to one another, they require more energy to melt than covalent bonds. Hence, option A is correct.
What is melting point ?Melting point of a substance is the temperature at which it converts from solid to liquid state. Melting point depends on the bond strength, molecular mass, temperature and pressure.
As the bond strength increases, the more energy have to be applied to weaken the intermolecular forces in solid to convert to liquid form. Ionic bonds are the strongest bond type. Thus, ionic compounds have highest melting point.
Therefore, the compounds 1 and 3 having highest melting point are ionic compounds. Remaining two with lower melting point are covalent. Therefore, option A is correct.
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Which of the following is not a reason why plants need water? *
a. Water is needed for photosynthesis.
b. Keeps plants rigid and not wilted.
c. Water cools the plant down during warm weather.
d. Water carries dissolved nutrients and minerals throughout plant.
e. Water needs to travel from the leaves to the roots
Answers
Answer:
C
Explanation:
the plant cools itself down by allowing water to evaporate from their leaves so it doesn't need water to cool down
A force of 800. N is for to push a car 40. m. How much work is done?
Answers
Answer:
32,000J
Explanation:
Workdone=Force x distance
=800 x 40
=32,000J
Write two complete sentences for each question for a total of four complete sentences. What is the purpose of cellular respiration? How is cellular respiration similar to photosynthesis?
PLEASE HELP ME
Answers
Explanation:
The purpose of cellular respiration is the to provide energy for the body of an organism. In this process, food materials are broken down by complex metabolic actions usually with the availability of oxygen. Then, energy is liberated for use by an organism and the waste is expelled.
Cellular respiration and photosynthesis are both similar. In that they are ways by which organisms obtain nutrition. The food for plant is derived by the process of photosynthesis. Also, other organisms use this food for their own nourishment.
What is the drawback to use period of pendulum as time standard
Answers
The time period of a simple pendulum depends upon its length and value of'g'at any place. The period of the pendulum of fixed length
can y’all help me with this plzz, thank you (:
Answers
Most likely B.
Because the mass of Cart B is higher than Cart A, its speed must be less than cart A's speed after the reaction. Therefore, options C and D are not applicable. Because of the ratio of masses between the carts, it would be safe to assume that A is not the answer. Although, I would still give option A a <2% chance of being the correct answer.
An 6 kg object accelerating from 17 m/s to 10 m/s. What is the change in momentum of the object?
Answers
Answer:
The change in momentum (in kg*m/s) = 42
Explanation:
The change in momentum is equal to
Final Momentum - Initial Momentum
As we know
Momentum is equal to the product of mass and velocity
[tex]M = m * v[/tex]
where m is the mass of the body and v is the speed
Thus, change in momentum
[tex]m_2v_2 - m_1v_1[/tex]
here m1 = m2 = 6 Kg
Substituting the given values in above equation we get -
[tex]6 * 17 - 6* 10\\6 (17-10) = 6 * 7 = 42[/tex] kg m/s
A man runs 9km in 1.5 min,what is its speed?
Answers
Answer:
It is actually impossible. But the answer is: 270 km/h.
Explanation:
which of the following is not an example of force? A. magnetism B. Electric force C. energy D. friction
Answers
Answer:
Friction
Explanation:
Which of the following cannot be used to describe a longitudinal wave?
A.velocity
B.frequency
C.wavelength
D.crest
Answers
Answer:
crest
hope It helped you!
The term which cannot be used to describe a longitudinal wave is crest. Crests are formed in transverse waves. Longitudinal waves are composed of rarefactions and compressions.
What are longitudinal waves ?Unlike electromagnetic waves, mechanical waves only travels through a medium and through vacuum. There are two types of mechanical waves namely, longitudinal waves and transverse waves.
In transverse waves, oscillation of particles is in a direction opposite to the wave propagation. In longitudinal waves, oscillation is along the wave propagation.
Transverse waves are composed of crests and troughs. Whereas, longitudinal waves are composed of regions of low pressure and regions of high pressures that are, rarefactions and compressions respectively.
Therefore, option D does not describes a longitudinal wave.
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50 POINTS!! BRAINLEST
Answers
Answer:2 one
Explanation:
Answer:
A webpage that is green has a title in red font to create emphasis. What color scheme is this?A webpage that is green has a title in red font to create emphasis. What color scheme is this?A webpage that is green has a title in red font to create emphasis. What color scheme is this?: