# Two electrons are placed; one at north pole and other at south pole of earth. Find the force between them. Given diameter of earth= 12800 km.

100,104 results, page 52
1. ## physical

Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30

asked by Anonymous on October 14, 2012
2. ## Physics

Oasis B is a distance d = 7.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 22 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 34

asked by Robin on February 9, 2014
3. ## Social Studies

The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? A) The southern states were leaning toward emancipation B) Slaves were hopeful to acquire jobs in Northern

asked by Jasmin on January 9, 2017
4. ## physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

asked by Maggie on November 22, 2009
5. ## physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? Is A the correct answer? a) That there is no reaction force-the net force on the

asked by ronnie on November 24, 2009
6. ## physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

asked by Maggie on November 23, 2009
7. ## science help pls pls

The table below shows the average distances of Jupiter and Earth from the sun. Name of Planet Average distance from the sun (in AU) Jupiter 5.2 Earth 1.0 What is the difference between the orbital periods of Jupiter and Earth? 4.20 years 6.20 years 8.86

asked by Oscar on September 1, 2016
8. ## science

Please help me out! 8. Which of the following motions causes day and night? The sun's movements in the sky Earth's revolution around the sun Earth's movements in space Earth's rotation on its axis**** 10. Why can you never see the far side of the moon from

asked by Three Days Grace on November 15, 2018
9. ## History :)

Can someone help with this one please? Select one reform movement from the Progressive Era. Describe the movement and its impact on South Carolina. Provide details and examples that support how this movement changed South Carolina. Websites and examples

asked by Martin on April 3, 2015
10. ## earth

The weight (V) of an object on Venus varies directly as its weight (E) on Earth. A person weighing 120 lb on Earth would weigh 106 lb on Venus. How much would a person weighing 180 lb on Earth weigh on Venus?

asked by Anonymous on September 5, 2012
11. ## physics

In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.80 m/s relative to the ground. A teammate passes the ball to him. The ball has a speed of 13.6 m/s and is moving in a direction of 32.5 degrees east of north, relative

asked by bobjahng on November 2, 2010
12. ## chemistry

We know that all matter are made up of atoms and all atoms consists of electrons,protons,neutrons,etc.Then why do we find such a variety of matter?Why is wood not gold?

asked by ........................... on July 29, 2011
13. ## chemistry (doubt)

We know that all matter are made up of atoms and all atoms consists of electrons ,protons, neutrons ,etc.Then why do we find such a variety of matter?Why is wood not gold?

asked by ... on August 5, 2011
14. ## Social Studies

1) The South is an excellent place to grow such crops as cotton, rice, tobacco, and sugar cane. Which of the following is NOT part of the South's excellent farming conditions? a. The warm climate is suitable for agriculture. b. There are no bugs. c. The

asked by Dianna on March 11, 2013
15. ## history

n President James Monroe's annual address to Congress in 1823, he outlined his foreign policy. This policy has become known as the Monroe Doctrine. What was the main point of the Monroe Doctrine? A. The United States would prevent future European

asked by Anonymous on February 11, 2016
16. ## Earth Science

1. What are one internal and one external source of energy in the Earth system? 2. Earth scientists assume that the causes of natural events of phenomena can be discovered through... 3. Science constantly creates new technology. Does this new technology

asked by Emma on January 13, 2013
17. ## Math/calculus

Earth orbits the sun at an average distance of about 150 million kilometres every 365.2564 mean solar days, or one sidereal year. What is the linear velocity of th3 Earth in kilometres per hour?

asked by Jessica on November 13, 2017
18. ## Chemistry

Can you help me with solving this? I don't just want the answer,but how to do it. The average distance between Mars and Earth is about 1.3 108 miles. How long would it take TV pictures transmitted from the Viking space vehicle on Mars' surface to reach

asked by Alex on April 12, 2011
19. ## science

The earth's magnetic shield has a) appeared only recently b)disappeared for short periods of time c)caused the earth's land masses to drift apart d)little effect on life this planet e)existed since the planet cooled e

asked by ant on August 17, 2010
20. ## Earth Science

1. What are one internal and one external source of energy in the Earth system? 2. Earth scientists assume that the causes of natural events of phenomena can be discovered through... 3. Science constantly creates new technology. Does this new technology

asked by Emma on January 12, 2013
21. ## Electromagnetic spectrum

Some astronomical objects emit no visible light but are known through (blank?) and radio images; satellite observations (blank?) Earth's atmosphere help scientists study space at wavelengths that do not reach Earth's surface?

asked by Anonymous on February 26, 2013
22. ## chemistry

Hi, Is the molecular formula different when it is in a gaseous state? Cheers ;) Sometimes yes, sometimes no. H2O, for example, is thought to be in a group of 6 as a liquid at room temprature, a group of 4 at higher temperatures, and single H2O molecules as

asked by bertie on February 6, 2007
23. ## chem--electrochemistry

So in this reaction: Ag(s) + Fe(+3) --> Ag(+) + Fe(+2) we are given 20 grams of Ag(s) to start off with. How do we find how many electrons are transfered in the reaction. And how many grams of Fe(+2) is formed. *for the latter, i think that we can

asked by Rav on March 28, 2010

1. What was the effect of world war I on south Carolina ? a. The state economy shrunk significantly.** b. Citizens used more resources, such as meat and fuel, than before war. c. Factory production slowed and trade decreased with other countries d. Some

asked by hellooo kitty on April 11, 2016
25. ## Social Studies

1. What was the effect of world war I on south Carolina ? a. The state economy shrunk significantly. b. Citizens used more resources, such as meat and fuel, than before war. ** c. Factory production slowed and trade decreased with other countries d. Some

asked by Sierra Elizabeth on April 11, 2016
26. ## physics

A flock of ducks is trying to migrate south for the winter, but they keep being blown off course by a wind blowing from the west at 11{\rm m/s} . A wise elder duck finally realizes that the solution is to fly at an angle to the wind.If the ducks can fly at

27. ## homework

Which of the following would cause the greatest decrease in gravitational force between the earth and the moon? an increase in the earth's mass an increase in the moon's mass an increase in the distance between the earth and the moon a decrease in the

asked by Anonymous on November 3, 2013
28. ## science

Which of the following would cause the greatest decrease in gravitational force between the earth and the moon? an increase in the earth's mass an increase in the moon's mass an increase in the distance between the earth and the moon a decrease in the

asked by savana on April 11, 2017
29. ## Physics

A pedestrian moves 5.7 kmeast and then 8 km north. Find the magnitude of the resultant dis- placement vector. Answer in units of km

asked by Crystal on October 1, 2012
30. ## physics

from point A, a boy walks 4 m to the east,2 m to the sout, 4 m to the west , and finally, 2 m to the north , find the distance he travelled and his displacement

asked by same on August 21, 2014
31. ## SCIENCE

1. An environmental engineer might (1 point) Create mathematical models of what may happen to global temperatures in the future. Build and maintain a marine exhibit for an aquarium. Help an oil finery reduce its toxic gas emissions.*** Stock a lake with

asked by SkatingDJ on January 19, 2015
32. ## Physics

Electrons in a narrow beam travelling at a steady speed of 5 x 10^7 ms^-1 are directed into the space between two oppositely charged parallel plates 50mm apart. The potential difference between the plates is 2500V. The initial direction of the beam is

asked by Ben on February 18, 2016
33. ## check geo

in western africa a ______is welcome after heavy summer rains. A)monsoon B)pula C)harmattan D)wet season my choose is c as one moves away from the equator, climates change from: A)savanna to rain forest B)tropical to steppe and desert C)steppe to wetter

asked by henry on September 10, 2009
34. ## English

In my class we're doing abbreviations, and I'm entirely stuck on this one. The abbreviation is NAmlnd. I'm guessing the first two words is North America, and I'm not sure what the last four letters stand for. Since this came from a crossword puzzle, in

asked by Marisol on January 4, 2007
35. ## science

Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower) - slowing the rate of rotation of the Moon. - increasing the rate of rotation of the Moon. *** - decreasing the distance between the Earth

asked by ally on September 23, 2017
36. ## science

Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower) - slowing the rate of rotation of the Moon. - increasing the rate of rotation of the Moon. *** - decreasing the distance between the Earth

asked by ally on September 23, 2017
37. ## physics hey damon one more please! =]

Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take

asked by Jon on January 14, 2008
38. ## PHYSICS

Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take

asked by Courtney hey damon can i get the quadratic on this on January 9, 2008
39. ## Astronomy

In the laboratory, an atom emits a spectral line at a wavelength of 400 nanometers. In the spectrum of a star, the same spectral line is found to have a wavelength of 410 nanometers. What can be said about the star? a. It is hotter than the Sun. b. It is

asked by Xenon on February 15, 2018
40. ## physics

1. which of the following is not true about magnetic field lines a) mag. field lines flow from North to South inside the magnet b) mag. field lines do not cross c) mag. field line density is proportional to field strength d) mag. field is strongest closest

asked by Liz on July 13, 2014

A rocket ship is moving away from the earth after having been fired from a launch pad in Florida. At what point above the earth's surface will the force of gravity be reduced to ½ of its original value? ------------------ Prior to this question I was

asked by Ian on January 14, 2015
42. ## Accounting

Based on the following production and sales estimates for May, determine the number of units expected to be manufactured in May. Estimated inventory (units), May 1 20,000 Desired inventory (units), May 31 15,000 Expected sales volume (units): South region

asked by Anonymous on July 14, 2013
43. ## physics!!!!

A spaceship passes Earth at a speed such that γ = 112. A creature aboard the vessel does the Mongoian greeting dance that takes it 21 s (on its clock -- bought on a previous visit -- which is why it reads in seconds) to perform. How long will the

asked by Jordan on November 30, 2009
44. ## physics

The radius of the Earth is approximately 6000 km. The acceleration of an astronaut in a perfectly circular orbit 300 km above the Earth would be most nearly. For this question I simply guessed. I knew "a" was 9.8 on the surface, and my answers were 0,

asked by Hannah on January 21, 2008
45. ## Physics

When land ice on Antarctica melts and flows into the sea, eventually it circulates and therefore distributes uniformly over the earth's oceans. As a result, does the earth's rotational speed increase, decrease or remain unaffected? (If it does have an

asked by Bill on October 26, 2009
46. ## physics

1. the pilot of a private plane flies 20km in a direction 60 degrees north of east,then 30km straight east,then 10km straight north.how far and in what direction is the plane from the starting point. 2. two forces acts on a point object as follows 100N at

asked by oluwatoyin on October 30, 2011
47. ## physics

1. the pilot of a private plane flies 20km in a direction 60 degrees north of east,then 30km straight east,then 10km straight north.how far and in what direction is the plane from the starting point. 2. two forces acts on a point object as follows 100N at

asked by oluwatoyin on October 30, 2011
48. ## physics

1. the pilot of a private plane flies 20km in a direction 60 degrees north of east,then 30km straight east,then 10km straight north.how far and in what direction is the plane from the starting point. 2. two forces acts on a point object as follows 100N at

asked by oluwatoyin on October 30, 2011
49. ## i really need help with science pls help

The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? Melted rock called magma rose through holes in Earth's crust and gradually solidified as it

asked by Oscar on April 15, 2016
50. ## Physics

The mass of Venus is 0.8140 times that of earth, and its radius is 0.950 times that of earth. Calculate the acceleration of gravity at the surface of Venus. Express your answer in g's (i.e. as a ratio to our acceleration of gravity). 9.01×10-1 is the

asked by Andy on October 12, 2009
51. ## Geometry 1

Ship A and Ship B leave from the same point in the ocean. Ship A travels 150 mi due west, turns 65° toward north, and then travels another 100 mi. Ship B travels 150 mi due east, turns 70° toward south, and then travels another 100 mi. Which ship is

asked by Anonymous on February 14, 2016
52. ## Physics Urgent!!

A day on Mars is 24.6 Earth hours long. A year on Mars is 687 Earth days long. How do the angular velocities of Mars’ rotation and orbit compare to the angular velocities of Earth’s rotation and orbit? w(M)/w(E)= and w(My)/w(Ey)= w is what I used to

asked by Roberto on April 7, 2011
53. ## Physical Science

Compare the number of valence electrons an oxygen, O, atom has with the number of valence electrons a selenium, Se, atom has. Are oxygen and selenium in the same period or group?

asked by Janisha on November 29, 2008
54. ## Physical science

Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?

asked by Anonymous on February 10, 2011
55. ## Chemistry-atoms

A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons? E. What is the symbol for the

asked by Anne on April 14, 2011
56. ## Physical science

Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?

asked by Anonymous on February 10, 2011
57. ## chemistry

I need help on a few of these. A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons?

asked by mary on April 14, 2011
58. ## Science

compare the number of valence electrons an oxygen, O, atom has with the number of valence electrons a selenium, Se, atom has. are oxygen and selenium in the same period or group?

asked by Ally on January 24, 2011
59. ## Astronomu

1. There is a common misconception about why the Earth is cold in the winter and warm in the summer. Some believe that this is because the Earth, in its elliptical orbit, is closer to the Sun in the summer and farther away in the winter. The argument is

asked by Gerson on July 15, 2012
60. ## Physics

To reach city A, you travel north for 2.00 hours covering 80.0 miles. You then turn due east and travel 45.0 minutes for another 20.0 miles to reach your destination. On the first leg of your trip (traveling north), what is your speed?

asked by Isis on June 12, 2013
61. ## pre calc

A navy destroyer is exactly 68 miles North of an aircraft carrier, which is travelling West 21 degrees North at 18 mph. what speed and bearing must the destroyer maintain if it is to reach the aircraft carrier in exactly 3 hrs? is it 226mph?

asked by jim on December 9, 2011
62. ## help!!!!

A navy destroyer is exactly 68 miles North of an aircraft carrier, which is travelling West 21 degrees North at 18 mph. what speed and bearing must the destroyer maintain if it is to reach the aircraft carrier in exactly 3 hrs? is it 226mph?

asked by bob on December 9, 2011
63. ## pre calc

A navy destroyer is exactly 68 miles North of an aircraft carrier, which is travelling West 21 degrees North at 18 mph. what speed and bearing must the destroyer maintain if it is to reach the aircraft carrier in exactly 3 hrs? is it 226mph?

asked by xiolin on December 9, 2011
64. ## physics

Four ropes are tied to a stake, and each is pulled toward a compass direction, N, S, E, or W. A force of 10 lb is applied to the rope pulled toward the east. Forces of 20, 30, and 40 lb are applied toward the south, west, and north, respectively. What is

asked by john on September 22, 2009
65. ## Physics

A radar station locates a sinking ship at range 16.0 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 155° clockwise from north, with elevation 2.35 km.

asked by C on September 6, 2015
66. ## physics

A car is driven east for a distance of 49 km, then north for 35 km, and then in a direction 33° east of north for 27 km. Draw the vector diagram and determine the total displacement of the car from its starting point. What is the magnitude and direction?

asked by Melisa on September 11, 2010
67. ## pre calc

A navy destroyer is exactly 68 miles North of an aircraft carrier, which is travelling West 21 degrees North at 18 mph. what speed and bearing must the destroyer maintain if it is to reach the aircraft carrier in exactly 3 hrs?

asked by colonel smith on December 8, 2011
68. ## Physics

A 1500-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 13.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision? 1. Degree north of east? 2. M/S?

asked by Sean on February 3, 2014
69. ## physics

A car is driven east for a distance of 49 km, then north for 35 km, and then in a direction 33° east of north for 27 km. Draw the vector diagram and determine the total displacement of the car from its starting point. What is the magnitude and direction?

asked by Anonymous on September 11, 2010
70. ## social studies

what kind of civilivation did north america develop This question is FAR too broad. There were many, many groups of people (and therefore civilizations) that developed in what we now call North America. You'll need to decide on one or two groups to

asked by jasmine on January 10, 2007
71. ## chem

how would you find the answer? A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus?

asked by hannah on December 7, 2010
72. ## U.S.History

please check my answer for this question What problems in the North led to reform movements of the early 1800s? Poverty, alcoholism, illiteracy, overcrowded housing, poor health care, abuse of women, and declining moral values were growing pains that first

asked by Bella on February 16, 2009
73. ## Math

You are going hiking in Brown County State Park this weekend and want to plan your route to Lake Monroe. Starting from the parking lot, you plan on hiking 2300 m due west, 17500 m due south, 1900 m due east, and 1200 m due north. What will be the total

asked by Mark on September 20, 2017
74. ## physics problem!!

If the water molecules in 5.70 g of water (H2O) were distributed uniformly over the surface of the Earth, how many such molecules would there be on 1.40 cm2 of the Earth's surface? -Molar mass Hydrogen gas(H2)=2.02 g/mol -Molar mass Oxygen gas (O2) = 32.0

asked by boom on April 9, 2013
75. ## physics

Two satellites are orbiting the Earth in stable circular orbits. Satellite A has a mass m and is located at a distance 2r from the center of the Earth. Satellite B has a mass 2m and is located at a distance r from the center of the Earth. Which one of the

asked by Sam on June 9, 2014
76. ## physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? I think the answer is B but not sure. a) That there is no reaction force-the net

asked by maggie on November 23, 2009
77. ## physics

Relative to the air, a jet is flying 230 mph due North. But if the wind is blowing 130 mph at 32 degrees north of east, then what is the velocity of the jet relative to the ground? 1. magnitude 2.direction

asked by Cali on June 1, 2018
78. ## Physics

1. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the East Direction? (Answer with three significant figures. 7. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the North direction? 1.

asked by Nisar on August 29, 2005

The Kepler spacecraft was designed to investigate humanity last unexplored frontier the far reaches of space. The NASA space telescope looks deep into the Milky Way galaxy for the sign of habitable planet where a human can potentially thrive, in the

asked by Anonymous on February 15, 2018
80. ## Pythagoras

An aeroplane flies 520 km north 45 degrees west then 387 km east . it is then noted that the plane is due north of its starting point. how far is the plane from its starting point? How do I work it out?

asked by Difficult on February 15, 2015

Two ships, A and B st out from port O simultaneously. A travels due north at 16 km/h, B due east at 13 km/h. The ships radio have a rang of 120. For how long would they remain in contact if B had travelled north-east

asked by jat on February 12, 2012
82. ## main ideas

Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. A greenhouse used for plants stays warm because sunlight and heat coming through the glass roof are mostly trapped. The heat doesn't radiate back into the

asked by bob on September 6, 2013
83. ## Physics

A polar satellite is launched at 850km above earth. Find orbital speed.

asked by Obaid on August 5, 2018
84. ## Physics

A polar satellite is launched at 850km above earth.Find its orbital speed.

asked by Obaid on August 5, 2018
85. ## Physics 202

Find the period of a satellite with a circular orbit 350 above Earth's surface.

asked by Tamar on February 7, 2013
86. ## physics

a polar satellite is launched at 850 km above Earth .find its orbital speed.

asked by Arshia fatima on June 18, 2013
87. ## Physics

A polar satellite is launched at 850 km above earth.find its orbital speed

asked by Hifza ijaz on May 28, 2018
88. ## spanish

does anyone know the story called " What ought a man to do on earth" It is from penn foster. Can I find it on the Internet if so where

asked by Kay on May 13, 2010
89. ## physics

A person can jump to a height of 1.5m on surface of earth. Find the velocity with which he jumps.

asked by rakshit on December 20, 2014
90. ## physic

Hi,could anyone help me with this questin please. Thank you so much. some folks on your planet waant to travel to the moon.But what happens to their clocks, it they leave the Earth?for other bodies, like the moon or planets the acceleration due to gravity

asked by Chan on November 20, 2009
91. ## Social Studies (please check Ms. Sue)

Please check this. Thanks! 1. How did World War 1 benefit South Carolina's economy the most? a. The government improved transportation systems.*** b. The government opened military bases for training. c. The people of South Carolina bought Liberty Bonds.

92. ## Urgent physics help

A plane flies 230 mph at 60 degrees north of west for 2.5 hours how far did the plane travel? how far west did it go? how far north did it go? how fast did it go west?

asked by Anonymous on October 25, 2015
93. ## chemistry help!!

For each of the following pairs, indicate which element has the larger first ionization energy Mg or Al. i put Mg. Repulsion of paired electrons in Mg is more significant than Al's higher effective nuclear charge. but got it wrong. Al. Repulsion of paired

asked by Samantha on November 20, 2012
94. ## Physics

How far above the surface of the Earth does an object have to be in order for it to have the same weight as it would have on the surface of the Moon? (Ignore any effects from the Earth's gravity for the object on the Moon's surface or from the Moon's

asked by Max on February 23, 2010
95. ## Physics :(( help please TT

The space shuttle had a top orbital speed of 8000 m/s and orbited in a circular orbit approximately 320 km above the earth's surface. How long was one orbit in seconds? Details and assumptions The radius of the earth is 6370 km.

asked by OIan on April 16, 2013
96. ## physics

If the earth doubled in mass but stayed the same size, what would be the acceleration due to gravity at the surface? m/s2 The dimensions of the earth as we currently know it are: Mass = 5.98E24 kg, Radius = 6.38E6 m and the universal gravitational constant

asked by Girma on September 24, 2014
97. ## science

The thermal energy of volcanoes and natural hot springs comes from trace amounts of radioactive minerals in common rock in the Earth's interior. Why isn't the same kind of rock at the Earth's surface warm to the touch?

asked by Ashton on January 31, 2008
98. ## Physics

A orbiting satellite stays over a certain spot on the equator of (rotating) Earth. What is the altitude of the orbit (called a "synchronous orbit")? Write the equation for the period of a satellite in terms of the distance from the Earth's center. It is a

asked by winterWX on February 16, 2007
99. ## English

1. The sun goes around the earth. 2. The Sun goes around the Earth. [Do we have to capitalize 'sun' and 'earth'? Which one is commonly used?]

asked by rfvv on October 26, 2017
100. ## chem

There are several exceptions to the octet rule found along the transition and rare earth metal sections. These exceptions are tied to the observed phenomenon that atoms are more stable if orbital systems are either whole or half filled. In other words, the

asked by Alexa on November 19, 2006