# 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.

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1. ## social studies

When France gave up control of Vietnam in 1954, which group gained control of North Vietnam and which group took charge of South Vietnam? 1 Cambodian forces gained control of North Vietnam and Laotian forces took charge of South Vietnam 2 Communist forces
2. ## Maths

A pole of height is a 3m is struck by a speeding car and breaks into two pieces such that the first piece is 1/2 second find the length of both pieces.
3. ## math

the order of the pole of sin(z)/((z-3)^4 * (z^2 + 3)^2) at z=3.
4. ## geography

Which is closer to the South Pole, the southern tip of Africa or the most southern edge of mainland Australia? My answer is the most southern edge of mainland Australia.
5. ## social studies

Did the North or the South have an increase in railroad construction during the Civil War? I think the North did. The section in our book where we are suppose to find the answer is not very clear.
6. ## Physics

a 96.4kg boxer has his first match in the canal zone with gravitational acceleration 9.782m/s^2 and his second match at the north pole with gravitational acceleration 9.832m/s^2. What is his mass in the canal zone? answer in units of kg
7. ## Physics/Nautical Mile

Still studying! I have The Macmillan & Silk Cut Nautical Almanac from 1981 which pre-dates WGS84 and they make reference to the NM being 6046 feet at the equator and 6108 feet at the poles. Conversions to metres = 1842.82m and 1861.71m. Remarkably similar
8. ## Trigonometry

A pole with a height of 60 ft. has a shadow of length of 34.64 ft at a particular instant of time. Find the angle of elevation of the sun at this point of time.
9. ## geometry

find the angle of wlevation of the sun when a 12.5 meter tall telephone pole casts an 18 meter long shadow?
10. ## geography

How far did the fertile crescent stretch from north to south? 650 miles from North to South or 640 miles Thanks
11. ## social studies

When France gave up control of Vietnam in 1954, which group gained control of North Vietnam and which group took charge of South Vietnam? 1 Cambodian forces gained control of North Vietnam and Laotian forces took charge of South Vietnam 2 Communist forces
12. ## Physics

Consider a map oriented so that the x-axis runs east-west (with east being the "positive" direction) and y runs north-south (with north "positive"). A person drives 23 km to the north, turns and drives 76 km to the east, and then turns north and drives for
13. ## Current/Magnetic force

A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and

Find the angle of elevation of the of the sun when a 12.5 meter tall telephone pole cast a 18 meter shadow.
15. ## physics

a man walks 12 m due noth , 4 m due east and finally climbs up a vertical pole up to a height of 3 m . find his displacement.
16. ## Math

Three scientists are observing Rickey and Riley, laboratory rats, to see how long each rat takes to find a piece of cake in a maze. The maze is a large box with open pathways running north-south and east-west in a grid pattern. Riley takes the direct route
17. ## Math

Three scientists are observing Rickey and Riley, laboratory rats, to see how long each rat takes to find a piece of cake in a maze. The maze is a large box with open pathways running north-south and east-west in a grid pattern. Riley takes the direct route
18. ## geography

Can you check my answers please? 1. What Russian peninsula is located between the Bering Sea and the Sea of Okhotsk? Kamchatka Peninsula 2. How many degrees of longitude circle the Earth? 360 degrees of longitude 3. What continents are included in the
19. ## physics

A dog searching for a bone walks 2.87 m south, then runs 22.5 m at an angle 30.5 north of east, and finally walks 5.91 m west. Find the direction of the dog's resultant displacement vector. Give your answer as an angle in degrees, with the angle measured
20. ## Religion

What is a good way to define a totem pole?
21. ## math

how far will a six foot pole fall in .02 seconds
22. ## physics

Believe it or not, a plumb-bob does not hang exactly along a line directed to the centre of the Earth! Determine how far off true plumb a bob hangs in Cape Town. In which direction is the deviation (north, east, south, or west)? How would your answer
23. ## World History- (Ms. Sue)

What were the two ways that the North and the South differed by the mid-1800's? My answer: The North had a rapidly growing economy with a large and rapidly growing urban population and no slavery north of the border states. The South was dominated by a
24. ## Chemistry

A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. Write its electron configuration and find: A) atomic number B) total number of s electrons C) total number p electrons D) total number of protons
25. ## Social Studies

South America lies in the blank Hemisphere and the blank Hemisphere at latitude blank and the blank Pole at latitude blank
26. ## Social Studies

1. In the civil War, for the first time, thousands of Women served as____. A. Soldiers B. spies*** C. generals D. nurses 2. "Peace Democrats" became known as______. A. war hawks*** B. rebels C. copperheads D. radicals 3. What guarantee gives accused
27. ## Math

A 120m cable TV tower casts a 96m shadow. Find the height of a nearby telephone pole that cast a 16m shadow.
28. ## Trigonometry

Round answer to two significant digits. A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.
29. ## Trigonometry

Round answer to two significant digits A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.
30. ## SCIENCE(PHYSICS)

A TRAIN IS MOVING ON A STRAIGHT TRCK AND TRAVELS AT A SPEED OF 72KM/HR AND PASSES A POLE BIN 3 SECONDS. FIND THE TJME TAKEN TO PASS A BRIDGE OF LENGTH 540m
31. ## his

Connecticut was certainly much closer to being a small state than a large one, how important was the perception by both the large and small states of Connecticut as a moderate to them being able to have a real positive influence on bringing the two sides
32. ## Physics

An electron moves with speed 2.46 x 105 m/s in a 1.39-T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of
33. ## Science

The fit of the coastlines of which of the following continents led people to suggest that the continents had drifted over time? a. North and South America b. North America and Africa c. South America and Africa d. Europe and North America
34. ## social studies

Hi, Can you help please? I usually have my answer ready and ask you to check it , but this time I cannot find it? The question is--- What difficulties did the North face from its own people? This is a question from a worksheet of 12 questions and it is
35. ## History

The map of northeastern region of North America shows the tribes of the Iroquois Confederacy: a. in a staked formation south of the st. lawrence river b. arranged like fingers south of lake ontario c. formed in the shape of a necklace north of the ohio
36. ## math

A woman walks 200 yards west along a straight shoreline and then swims 50 yards north into the ocean on a line that is perpendicular to the shoreline. Using her starting point as the pole and the east direction as the polar axis, give her current position
37. ## electric engineering

First of all I need to let you know that I'm not an Engineering student. I'm just dabbling with it in a hobbie capacity. I recently wrapped 11 layers of 30gauge magnetic wire around a ball, approximatly 2" in diameter. Leaving a lead and starting from the
38. ## Earth Science

How to draw 40 degrees north and 70 degrees south with latitude and longitude
39. ## Pre-Calculus

Given: r = 4/(-2-6sinθ) What is the distance between the pole and the directrix? A. 2 B.2/3 C.3 D.6
40. ## math

how far weill a six foot pole fall in .02 seconds
41. ## pre calculus

what is the distance between the pole and the directrix of r = 4/-2-6sintheta
42. ## precalculus

what is the formula for finding the distance between the pole and the directrix?
43. ## physical education

draw a pole vault field
44. ## Physics

How many kilometers long is the proverbial “10-foot pole?”
45. ## Physics

how many centimeters long is the proverbial "10-foot pole?"
46. ## physics

what is the value of weight of a body of 10kg at the pole and equator ?
47. ## physics

An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 34.0 cm away. What is the magnitude of the deflection on the
48. ## physics

a 1500 kg car moving with a speed of 15 m/s collides with a utility pole and is brought to rest in 0.3 s. Find the average force exerted on the car during the collision.
49. ## Math

Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.
50. ## geometry

Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.
51. ## trigonometry

From a point 150 ft from the base of a building the top and the base of a flagpole on a roof edge have angles of elevation of 27degrees49' and 21degrees42' respectively. Find the height of the pole.
52. ## physics

Three vectors are specified as A is 5 m at 45o north of east, B is 7 m at 60o east of south, and C is 4 m at 30o west to south.?Find the magnitude and direction of their sum.
53. ## physics

Three vectors are specified as A is 5 m at 45o north of east, B is 7 m at 60o east of south, and C is 4 m at 30o west to south. Find the magnitude and direction of their sum.
54. ## geography

Can you check my answers please? !. What two continents have no deserts? Europe and Antarctica 2. Is the North Pole on land or water? on land 3. Are you closer to the equator in the northern or southern part of Argentina? Northern Argentina 4. What line of
55. ## Science

Explain how would you can locate the pole star with the help of Ursa Major.
56. ## Math

r=4/(-2-6sinϴ) 1. What is the eccentricity of the function? 2. What is the distance between the pole and the directrix? 1. A. 2 B. -2 C. 3 D. -3 2. A. 2 B. 2/3 C. 3 D. 6
57. ## physics

What happens to the gravitational energy of a firefighter when he slides down the fire pole?
58. ## Math

5. The Leaning Tower of Pisa leans toward the south at an angle of 5.5 degrees. One day near noon its shadow was measured to be 84.02m long and the angle of elevation from the tip of the shadow to the following, assume that the Tower is like a pole stuck

an experimental satelite is placed into a polar ellipical orbit above the earth. both its apogee and perigee are above the equator and the earths centre is the focus of the ellipical orbit. the earths radius is taken ar 6000km. the furthest point of the
60. ## us history

Which of the following best describes the relationship between factory owners in the North and people in the South during the late 1800s? Northern factory owners depended on the South for factory workers to produce goods. Northern factory owners depended
61. ## trigonometry

How to solve a vertical pole 8 feet tall cast a shadow 5 feet long on level ground.find the angle which the rays of the sun makes with the horizontal.
62. ## physics (Right Hand Rule Question)

A proton traveling due east in a region that contains only a magnetic field experiences a vertically upward force away from the surface of the earth. What is the direction of the magnetic field? a)North b)East c)South d)West e)Down I know I need to use the
63. ## precalculus

can you check my work? Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4. answer: √(x^2 + y^2) / (y - 4) = 1/4 4√(x^2 + y^2) = y - 4 4r = r sin θ - 4 (sin θ - 4) r = 4 r = 4/(sin θ - 4)
64. ## history

What was the Tet Offensive? a. A combined North Vietnamese and Chinese attack on the American navy in the Gulf of Tonkin b. An all-out invasion of North Vietnam by South Vietnamese and American troops c. An American bombing campaign against Communist
65. ## Physics

The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. (a) Assuming the earth is a sphere with a radius of 6.38 106 m, determine the speed of a person situated at
66. ## Language Arts

Scott’s Good-bye We saw the months of wicked weather, As day to painful night did turn, Waiting, huddled close together For the frozen sun’s return. Our nights were almost endless torture. Our food was gone. Our fuel was low. We came in search of grand
67. ## physics

Consider a map oriented sot hat the x axis runs east-west (with east being "positive" direction) and y runs north-south (with north "positive"). A person drives 35 km to the west, then turns and drives 44 km to the south. Find the x and y components of the
68. ## physics

Planet Z is 1.00×10^4 km in diameter. The free-fall acceleration on Planet Z is 10.0 m/s^2. a)What is the mass of Planet Z? b)What is the free-fall acceleration 9000 km above Planet Z's north pole?
69. ## Math

Find the exact ratio of the equator to the distance around the Earth at latitude 45 degrees north. (Assume the Earth is a perfect sphere.)
70. ## phisecs

In a period of 3 h, a man walks 13 km north, turns around and walks 5 km south. Find his average velocity in km/h? Please pay attention to sign. (-) means the average velocity is to the south, (+) means the average velocity is to the North.
71. ## phisecs

In a period of 3 h, a man walks 13 km north, turns around and walks 5 km south. Find his average velocity in km/h? Please pay attention to sign. (-) means the average velocity is to the south, (+) means the average velocity is to the North.
72. ## Electrical Engineering

By what things the positive pole of dry battery is made??
73. ## Math

A vertical pole 3m tall casts a shadow 1.8m long what is the angle?
74. ## math

how tall is a telephone pole if it cast a shadow 24 feet long
75. ## SCIENCE(PHYSICS)

a train is moving on a straight track n travels at a speed of72km/hr and passes a pole in 3 seconds. find the time taken by the train to pass the bridge of length of 540 m?
76. ## Physics

Consider a map oriented so that the x axis runs east–west (with east being the "positive" direction) and y runs north–south (with north "positive"). A person drives 14 km to the west, then turns and drives 44 km to the south. Find the magnitude and the
77. ## science

Which option accurately describes a scenario in which a car experiences a displacement of 10 m north? A car starts at a position of 2 m south. It moves 4 m east, 2 m west, and then 2 m north. A car starts at a position of 0 m. It moves 10 m west, 10 m
78. ## precalculus

Can you check my answers? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at
79. ## precalculus

will someone please check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and
80. ## Physics

A woman holds a 1.90-m-long uniform 5.0-kg pole as shown in (Figure 1) ( its horizontal). A. Determine the force she must exert on the pole at A. Express your answer to two significant figures and include the appropriate units. Enter positive value if the
81. ## Calculus

1)A north south highway, intersects an east west highway, at point P. A vehicle process point P @ 1pm, traveling east at a constant speed of 60km/h. At the same instant another vehiclist 5km north of P, travelling south at 80km/h, find the time, when the 2
82. ## Physics

A 1400 kg car moving south at 10.0 m/s collides with a 2350 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.36 m/s to the north. Find the velocity of the 2350 kg car before the collision. m/s to the
83. ## pre calculus

can you check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4.
84. ## Pre-Calc

Consider the following table, which gives the winning Olympic pole vaults in the 20th century. Year Gold Medalists Height(ft) 1900 Irving Baxter 10.83 1904 Charles Dvorak 11.84 1908 A. Gilbert 12.17 1912 harry Babcock 12.96 1920 Frank Ross 13.42 1924 Lee
85. ## physics questions

1. The batteries in a digital alarm clock provide a terminal voltage of 9 V. What is the potential difference across the entire clock current? A. 4.5 V B. 18.0 V C. 9.0 V D. 6.0 V **C is my answer 2. Why does the earth have a magnetic declination? a. the
86. ## Geometry

15.) Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary. A) 2276.5 in.3 B) 2799.8 in.3 C) 1046.7 in.3 D) 4553.0

Simon travels north and south from Main Station. The distance, in km, of the train from Main Station is modeled by the function d(t)=t^3-9t^2+6t, where North is positive and South is negative. Time elapsed after the start of a shift, in hours, is
88. ## mathematics

... a straight road observes that at two points l km apart, the angles of elevation of a pole in front of him are 30° and 75°.
89. ## physical science

how many centimeters long is the proverbial "10 foot pole?" show work
90. ## Math

At a certain time of day, a pole, 5 meters tall, casts a 3 meter shadow.
91. ## social - totem pole

can you explain the history of northwest coast native art?
92. ## Control Syatem

Give an example of a physical system whose transfer function model has a pole in the right.
93. ## Math

Test for symmetry with respect to Q=pi/2 , the polar axis and the pole. r = 16 cos3Q Please explain. I do not know how to do this. Thank You!!
94. ## Physics

A pipe organ is an aerophone with open ended tubes, with esssentially the same physics as the flute. (a) for normal room temperature, where the speed of sound is about 340 m/s how long is the pipe for the A440 note. (b) Suppose someone wanted to install an
95. ## physics vectors

While exploring a cave, a spelunker starts at the entrance and moves the following distances. She goes 75.0 m north, 250 m east, 109 m at an angle θ = 30.0° north of east, and 156 m south. Find the resultant displacement from the cave entrance. The

subject and object pronouns write each sentence. replace the underlined words with subject or object pronouns. 1-When some people visited the South Pole, the people wore heavy coats to keep the people warm. underline the word is (the people, the people) my
97. ## Geography and Society

What is latitude? a. A measure of how far a given object is north or south of the Equator b. A measure of how far a given object is east or west of a location c. A measure of how far a given object is north or south from the Poles*** d. All of the above
98. ## maths

find the height of a pole which casts a shadow 22 cm long at a time and place where the shadow of a stick one meter long ig is 55cm
99. ## College math

1.Find the height to the nearest foot of a tree that makes a 50-foot shadow when a 2 ft. 6 in. pole is used to make a shadow of 3 feet.
100. ## math

an 80 foot flag pole casts a 30 foot shadow . find the height of the tree if its shadow is 9 feet