# Why must the centre of the satellite orbit coincide with the centre of the Earth?

8,749 results, page 25
1. ## physics

The sun has a mass of 1.99 × 1030 kg and is moving in a circular orbit about the center of our galaxy, the Milky Way. The radius of the orbit is 2.3 × 104 light-years (1 light-year = 9.5 × 1015 m), and the angular speed of the sun is 1.1 × 10-15 rad/s.

asked by Jennifer on March 9, 2015
2. ## Astronomy

1. Consider an asteroid of radius 2 km and density 2,500 kg/m^3 impacting the Earth. When it collides with the surface its kinetic energy is, to a large extent, dumped into the environment, some as heat vaporizing rock and some as mechanical energy

asked by keitanako on December 9, 2013
3. ## English

I forgot to include the following sentences. Thank you very much 1) My family and I drove from Turin to Pisa. We didn't have an exciting road trip, because we mainly dorve through boring highways. 2) We spent our time having conversations about scool and

asked by Mike1 on April 22, 2011
4. ## physics

Consider the Earth and the Moon as a two-particle system. (a) Find the gravitational field of this two-particle system at the point that is exactly halfway between the Earth and the Moon. (Assume a radial direction r̂ from the Earth to the Moon. Express

asked by joy on February 16, 2018
5. ## Physics

Mars rotates on its axis once every 24.8 hours. What is the altitude of a geosynchronous satellite orbiting Mars. I have the speed of geosynchronous orbiting Mars. But I cant find the altitude of a geosynchronous satellite orbiting Mars.

asked by Hoa on April 6, 2010
6. ## Comp 155

When writing a paragraph, it is important that the topic sentence and supporting points within that paragraph be directly related. What would be the reaction of a reader if the topic sentences in an essay did not coincide with the supporting points?

asked by Me on August 20, 2011
7. ## COMP 155

When writing a paragraph, it is important that the topic sentence and supporting points within that paragraph be directly related. What would be the reaction of a reader if the topic sentences in an essay did not coincide with the supporting points?

asked by Keisga on November 29, 2010
8. ## COM/155

When writing a paragraph, it is important that the topic sentence and supporting points within that paragraph be directly related. What would be the reaction of a reader if the topic sentences in an essay did not coincide with the supporting points?

asked by Elaine on May 2, 2011
9. ## Critical Thinking

When the interests of politicians or big business moguls coincide with those of the masses which of the following is the consequence? coverage of events will be leaked coverage of events will be automatic coverage of events will be cancelled coverage of

asked by Anonymous on November 13, 2011
10. ## english

1. In “At the Tourist Centre in Boston,” the speaker's tone can best be identified as (1 point) disapproving. downcast. enraged. sarcastic. 2. Which line from the poem best supports the tone identified above? (1 point) "the green of the trees dulled;"

asked by kate on August 15, 2014
11. ## Science

If you were to look down on Earth from above the North Pole, in which direction would Earth appear to rotate? If you were to look down on Earth from above the North Pole, then earth would appear to rotate in a counter-clockwise direction. More info would

asked by Sara on February 6, 2010
12. ## physics help please (updated question)

What is the angular momentum of the Moon in its orbit around Earth? I assume I need the mass of the moon, radius of the moon, and angular velocity of the moon. Found those on google, plugged them into my formula (angular momentum = Iw) and got the wrong

asked by tyger2020 on January 4, 2018
13. ## Physics-mechanics

A 1.0 kg mass weighs 9.8 N on Earth's surface, and the radius of the Earth is roughly 6.4 x 10^6 m. Calculate the average density of Earth. (Show how you would calculate for density; don't just give the answer because L wan't to understand how you arrived

asked by Rebecca on December 27, 2012
14. ## physics-torque

A person is doing leg lifts with 3.0-kg ankle weights. She is sitting in a chair with her legs bent at a right angle initially. The quadriceps muscles are attached to the patella via a tendon; the patella is connected to the tibia by the patellar tendon,

asked by Trace on January 20, 2011
15. ## Astronomy

The Moon’s gravity stretches Earth, which causes Earth’s tides. How much stronger is the force of the Moon’s gravity on a 1 kg mass on the side of Earth closest to the Moon compared to the force of the Moon’s gravity on a 1 kg mass on the side of

asked by hannah on November 19, 2018
16. ## Physics

A 6.80 x 10^4 kg space shuttle moving at 7.90 x 10^4 m/s reenters the earth's atmosphere 80.0 km above the earth's surface. What is the shuttle's total mechanical energy with respect to earth's surface? I know the answer is E= 2.173 x 10^12J But I don't

asked by Danny on January 27, 2016
17. ## science

the moon's gravity is about one-sixth the gravity on earth. mar's gravity is about one half the gravity on earth. make a bar graph that shows your weight (95 lbs) in newtons on earth, moon, and on mars. A newton is equal to about one quarter of a pound.

asked by nikki on May 12, 2011

Sydney drew a scale diagram of a circular fire pit in the centre of a circular patio with an actual circumference of 15m. The circle containing the fire put is a reduction of the circular patio by a scale factor of1/3. A.) Determine the diameter of the

asked by Cherie on June 18, 2016

The space shuttle orbits at a distance of 335 km above the surface of the Earth. What is the gravitational force (in N) on a 1.0 kg sphere inside the space shuttle. Assume that the mass of the Earth is 5.98x1024 kg and the radius of the Earth is 6370 km

asked by ... on November 26, 2011
20. ## World Geography

REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s

asked by bre on April 5, 2013
21. ## physics

How much additional energy is needed to fire a 7.2 × 10^2 kg weather monitor on the earth’s surface to a height of 120 km above the earth? (rE = 6.38 × 10^6 m, ME = 5.98 × 10^24 kg) Assume that the weather monitor rises to that height, stops, and

asked by grey on June 6, 2014
22. ## Physics 2

what magnetic force would an electron experience due to Earth’s magnetic field if it were moving at 3x10E6 m/s directly away from earth’s surface? (Earth’s B-field in the region is parallel to the surface and has a strength of 550 µT)

asked by seanmarch58 on July 28, 2014
23. ## algebra

The force of gravity is inversely proportional to the square of the center of the earth. if you weigh 120 lbs on the surface of the earth, how much would you weigh 250 miles above the surface? (Earth's radius = 4000 miles)

asked by scott on January 28, 2011
24. ## Science

A Space Traveller determine the radius of a Planet to be half that of the earth after landing on its surface he find the acceleration due to gravity to be twice of the surface of the earth find the ratio of the mass of a planet to the earth

asked by Saloni on August 18, 2017
25. ## Physics

The mean radius of the Earth is R=6.38x10^6m. At what distance above the Earth's surface will the acceleration of gravity be 4.905m/s^2? F_g=(Gmme)/r^2 4.905=6.67x10^-11(5.98x10^24)/r^2 The mass cancel out so that is how I got the above answer. r=9017663m

asked by Andrea on November 13, 2007
26. ## maths

The total population of the earth was estimated to be 6.42 billion people.Given that the total land surface area of the earth is about 1.5×10^8km^2.Find the average number of people living in 1 km^2 of land on earth,correct to 2 significant figures.Thanks

asked by ashley on January 12, 2014
27. ## science

does jupiter have a clockwise or counterr-clockwise rotation? Both. It depends on the direction you are looking. For instance, looking at the Earth, from the South of Earth, Earth has clockwise rotation. But looking at it from the North, is is

asked by carol on May 27, 2007
28. ## physics

Sally has a mass of 58.0 kg and Earth has a mass of 5.98 1024 kg. The radius of Earth is 6.371 106 m. What is the force of gravitational attraction between Sally and Earth? What is Sally's weight?

asked by Anonymous on December 5, 2012
29. ## Physics

Assuming that the Earth is spherical and recalling that latitudes range from 0° at the Equator to 90° N at the North Pole, how far apart, measured on the Earth's surface, are Copenhagen (55.67° N latitude), and Rome (41.90° N latitude)? The two cities

asked by Martha on June 16, 2012
30. ## Physics

While watching ocean waves at the dock of the bay, Otis notices that 10 waves pass beneath him in 30 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 5 meters apart. What are the period, frequency,

asked by Shannon on March 14, 2011
31. ## physics

while watching ocean waves at the dock of the bay. otis notices that 10 waves pass beneath him in 30 seconds. he also notices that the crests of succesive waves exactly coincide with the posts that are 5 meters apart. what are the period frequency

asked by charlie on February 11, 2011
32. ## Physics

If the mass of a planet is 0.103 times that of the Earth and its radius is 0.592 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2

asked by Luhan on February 26, 2016
33. ## physics..

Angular diameter of sun is 17" when measured from north pole and south pole of earth. Calculate distance of sun from earth if diameter of earth is 12800km. kindly help me to solve this question..

asked by Anonymous on May 21, 2011
34. ## Physics

Because of the Earth's rotation, a plumb bob does not hang exactly along a line directed to the center of the Earth. How much does the plumb bob deviate from a radial line at 35.1° north latitude? Assume the Earth is spherical.

asked by Bill on February 26, 2012
35. ## Physics

If the mass of a planet is 0.571 times that of the Earth and its radius is 0.787 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2

asked by Kate on October 30, 2013
36. ## Physics

Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of one’s birth. The only known force a planet exerts on objects on Earth is gravitational. (a) Calculate the gravitational force exerted on a 4.20

asked by Anonymous on June 8, 2014
37. ## physics

A large swinging ball is used to drive a horizontal iron spike into a vertical wall. The centre of the ball falls through a vertical height of 1.6m before striking the spike in the position shown. (there is this drawing of a wall and a pendulum is

asked by physicslover on January 15, 2018
38. ## Astronomy

Suppose the Moon is at a (center-to-center) distance D from Earth. Find an exact expression for the magnitude of the tidal force applied by Earth to our rock of mass m in terms of D, m, the mass of Earth Me (input as M_e), and the lunar radius Rm (input as

asked by sam on December 23, 2012
39. ## Physics-VASTS

The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE

asked by red on March 7, 2013
40. ## physics

why does the earth have a magnetic declination? a. the earth's axis of rotation is not constant b. the magnetic field of the earth is unknown c. its magnetic poles shift over time and are not aligned to its geographical poles. d. the north and south poles

asked by jason on April 12, 2011

Calculate the position of the center of mass of the following pairs of objects. Use acoordinate system where the origin is at the center of the more massive object. Give youranswer not in meters but as a fraction of the radius as requested. Get data from

asked by john on February 29, 2012
42. ## Geography

(Use the drop-down menu to complete the sentence) As one side of Earth turns away from the sun, [Options] A.) The Sun moves with it. B.) The Sun appears to rise on that side of Earth. C.) The Sun appears to set on that side of Earth. D.) The Sun moves to

asked by Vixen - Connexus on August 14, 2018
43. ## FRENCH1

é ü û à Please correct. I did my best to correct each sentence. 1.) Cette semaine nous allon à Seattle. 2.) Nous visité notre famille. 3.) Nous avons dépensé beaucoup de temps avec ils à une mariage et pendant camp. 4.) Aujourd'hui, je suis aller

asked by Gabs on June 16, 2015
44. ## engineering

In many engineering uses, the value of �g�, the acceleration due to gravity, is taken as a constant. However, g is actually dependent upon the distance from the center of the Earth. A more accurate expression for g is: g=g0(Re/Re+A)^2 Here, g0 is the

asked by Seth on February 1, 2016
45. ## physics

a marble is dropped from the top of a skyscraper. Is the work done by earths gravitational force on the marble equal to, smaller than or larger them that done by the marbles gravitational force on earth? Why? newtons 3rd law: force on marble due to earths

asked by danielle on October 31, 2006
46. ## Physics

A 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. Find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earth’s velocity. Earth’s mass is 6.0 × 1024 kg. Show

asked by Pat on January 27, 2012
47. ## Physics Question......many thanks

A projectile is shot directly away from Earth's surface. Neglect the rotation of Earth. (a) As a multiple of Earth's radius RE, what is the radial distance a projectile reaches if its initial speed is one-fifth of the escape speed from Earth? ____ times RE

asked by Jessy on January 15, 2007
48. ## physics

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the

asked by Danny on December 6, 2012
49. ## Physics

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the

asked by Caleb on December 4, 2012
50. ## Science

PLEASE CHECK MY ANSWERS :) answers marked below 1. Which of Earth’s spheres contains most of its mass? (1 point) atmosphere *** hydrosphere geosphere biosphere 2. Erosion and weathering are examples of which types of forces? (1 point) constructive forces

asked by Anonymous on March 6, 2017
51. ## Calculus

The radius of Earth at the equator is approximately 4000 miles. Suppose a jet flies once around Earth at a speed of 5000 miles an hour relative to Earth. If the flight path is a negligible height above the equater, then among the following choices, what is

asked by Arnold on November 28, 2007
52. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z?

asked by Annika on January 26, 2011
53. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z?

asked by Annika on January 26, 2011
54. ## 12th

an electron above the earth is balanced by the gravitational force and the electric field of the earth. find the electric field of the earth.

asked by priya on April 27, 2013
55. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z? Thank you.

asked by anil on January 26, 2011
56. ## physics

The radius of Earth is about 6.38 103 km. A 7.40 103 N spacecraft travels away from Earth. What is the weight of the spacecraft at the following distances from Earth's surface?

asked by Anonymous on December 13, 2010
57. ## English

Could you please check these sentences? Thank you. 1) In the conventional society of Jane Austen’s day, a woman’s role was fairly clear. Her position in life was defined by her father or her husband and she was expected to be modest, submissive and

asked by Henry2 on December 19, 2011
58. ## Physics

Calculate the position of the center of mass of the following pairs of objects. Use acoordinate system where the origin is at the center of the more massive object. Give youranswer not in meters but as a fraction of the radius as requested. Get data from

asked by john on February 29, 2012
59. ## physics

Find the value of the magnetic field necessary to cause a proton moving at a speed of 2.50 ×10^3 m/s to go into a circular orbit of 15.5-cm radius. An electron has an energy of 100 eV as it enters a magnetic field of 3.50 × 10−2 T. Find the radius of

asked by Kayla on July 24, 2011
60. ## Math

The period of revolution of a planet around the sun is the time it takes for the planet to complete one orbit of the sun. The period, P years, is give by Kepler's third law P^2=D^3, where D is the average distance from the sun in astronomical units (AU).

asked by Larry on September 14, 2008
61. ## Physics [Help, need answer in 10 min]

During a solar eclipse, the moon (of mass 7.36 × 1022 kg), Earth (of mass 5.98 × 1024 kg), and Sun (of mass 1.99 × 1030 kg) lie on the same line, with the moon between Earth and the Sun. What gravitational force is exerted on the moon by the Sun? The

asked by James on November 20, 2015
62. ## drbob222,math

Am going correct with this one. It is estimated that the Earth is losing 4000 species of plants and animals every year. If S represents the number of species living last year, how many species are on Earth this year? S-4000=1 S=1+4000 S=4001 of species we

asked by Jasmine20 on December 12, 2006
63. ## Physics

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the

asked by Matt on December 1, 2011
64. ## physics

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the

asked by Jordan on December 1, 2011
65. ## science

It is not a homework, it is my question, and I hope it is explained. Sometimes at night I look ATTENTIONALLY at the starry sky , notice and see that there is an object which is as small as a star is moving. It is very very far and has the light as the

asked by Bun on December 16, 2009
66. ## ASTRONOMY

Good evening all, I am working on a PowerPoint presentation for my Astronomy class about planet Earth - my question is: What is Earth's brightest apparent magnitude (if it has one)? I have searched every reliable source I know of (and that I come across),

asked by Andy G on November 8, 2014
67. ## science

The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground Is this true? yeah it is true yeah it is true The true speed of a moving car on the Earth, if you want to be very precise,

asked by Haley on May 10, 2007
68. ## english

i am learning about capital letters in English and i need to write a sentence about Earth. i was just wondering if planet has to have a capital letter. Planet Earth or planet Earth which is right? thanks!

asked by dancer on February 7, 2009
69. ## Relationship between Rotational & Linear Momentum

Please imagine you have a chassis (mass M) that is placed on rails (it can move only to one direction i.e axis y). On the chassis centre we have placed a rod that can rotate for half cycle (180 degs) with a high angular velocity and for the rest half cycle

asked by Nikos on February 24, 2007
70. ## science help PLS

Which of the following correctly describes a way in which Earth’s atmosphere interacts with the hydrosphere? Living organisms breathe gases in the atmosphere. Water moves between Earth’s surface and the atmosphere. Gases in the atmosphere trap incoming

asked by Oscar on January 25, 2016
71. ## physics

It is the year 2305 and the tallest structure in the world has an insane height of 3.19×106 m above the surface of the Earth. A pendulum clock that keeps perfect time on the surface of the Earth is placed at the top of the tower. How long does the clock

asked by gino intili on February 24, 2011
72. ## physics

It is the year 2305 and the tallest structure in the world has an insane height of 3.19×106 m above the surface of the Earth. A pendulum clock that keeps perfect time on the surface of the Earth is placed at the top of the tower. How long does the clock

asked by caila on February 24, 2011
73. ## physics

If the earth acceleration due to gravity on a mass of 2000kg on the earth surface is 10ms.What will be the acceleration due to gravity when it is at a point twice the radius of the earth.What is the gravitational force on it.

asked by Boniface on August 12, 2011
74. ## physics

A certain pendulum on Earth has a period of 1.6 s. What would be the period of this pendulum if it were taken to another planet that had 1.75 times the mass of the Earth and 2.5 times the Earth's radius? Express your answer in seconds to three significant

asked by Zac on April 7, 2016
75. ## maths calculus

A centre enters students for English levels one and two end test every year. Some take the paper based version, others online version. For planning purposes you need to assume trend patterns indicate that .the total number of entries each year is always

asked by jigna on February 26, 2007
76. ## science

ok i have a couple questions. 1. How has life changed throughout Earth's history? 2.What are three things that fossils tell us about earth's past? 3.What is radioactive dating? how do scientists use parent and daughter elements to determine the age of a

asked by emily on April 9, 2009
77. ## science

Which motion causes night and day on Earth? A. the Sun’s motion around its axis B. Earth’s motion around its axis*** C. Earth’s motion around the Sun D. the Moon’s motion around Earth I think the answer is B, but am I correct?

asked by ¯\_('-')_/¯ on March 20, 2018
78. ## physics help!

The earth attracts a large ﬂying bug toward its center with a force of 0.10 Newtons. With what force does the bug attract the earth itself? 1. 1.0 N 2. 0.10 N 3. Trillions of Newtons 4. 10 N 5. We need the mass of the bug. 6. Zero; the earth attracts the

asked by jackie on December 8, 2014
79. ## science

Amanda is holding a compass and notices that the north pole of the compass points toward the north pole of the Earth. She is confused because she knows from her science classes that the north poles of two magnets will repel each other. How can she explain

asked by Nour on July 27, 2015
80. ## geometry

A total solar eclipse occurs when the moon passes between the earth and the sun, and the darkest shadow cast by the moon, called the umbra, hits the surface of the earth. If the umbra does not hit the surface, as shown in the following figure, then a total

asked by Terri on November 7, 2014
81. ## physics

What is the angular speed ω about the polar axis of a point on Earth's (a) What is the angular speed ω about the polar axis of a point on Earth's surface at a latitude of 57° N? (Earth rotates about that axis.) (b) What is the linear speed v of the

asked by califeux on October 21, 2018
82. ## Physics

You plan to build a large, cheap cyclotron using the Earth's magnetic fields(1x10^-4 T) and orbiting just above the Earth's atmosphere (radius 5.7 x10 ^6 m) What energy, in volts, should protons be given to just circle the earth? q= 1.6 x10^-19 C, m=

asked by Sandhya on April 8, 2008
83. ## physics

CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8

asked by Anonymous on January 29, 2015
84. ## physics

CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8

asked by Anonymous on January 29, 2015
85. ## Physics

How many years would it take the planet to orbit the sun. How do you calculate. All I have is, that the planet is 97 times farther from sun than earth or 97 Astronomical units Using Kepler's Law you find that the anser is 97^(1.5) years. You can estimate

asked by Harry on December 29, 2006
86. ## Law

I have to find key political words for this newspaper article so please check whehter the words i listed is right in the bottom and if there is anything i should add: Government contributes \$9m for soldier protection Published on Tue, 14/06/2011, 11:45:04

asked by Crissy XD on July 6, 2011
87. ## electric physics

Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.4 cm-3, and their speed is 576 km/s. (a) Find the current density of these protons. (b) If Earth's magnetic field did not deflect the protons, what total

asked by sweety on April 14, 2009
88. ## Physics

Suppose that a steel hoop could be constructed to fit just around the earth's equator at a temperature of 20.0 Celsius. What would be the thickness of space between the hoop and the earth if the temperature of the hoop were increased by 0.200 C? Use

asked by Mike on May 17, 2010

The distance between earth and the moon can be determined from the time it takes for a laser beam to travel from earth to a reflector on the moon and back. If the round-trip time can be measured to an accuracy of 0.19 of a nanosecond (1 ns = 10-9 s), what

asked by Mary on October 15, 2007
90. ## Physics

The distance between earth and the moon can be determined from the time it takes for a laser beam to travel from earth to a reflector on the moon and back. If the round-trip time can be measured to an accuracy of 0.19 of a nanosecond (1 ns = 10-9 s), what

asked by Mary on October 13, 2007
91. ## Physics repost please clarify

The distance between earth and the moon can be determined from the time it takes for a laser beam to travel from earth to a reflector on the moon and back. If the round-trip time can be measured to an accuracy of 0.19 of a nanosecond (1 ns = 10-9 s), what

asked by Mary on October 16, 2007
92. ## Physics

Assume that Earth’s magnetic field is every- where perpendicular to the path of a proton and that Earth’s magnetic field has an inten- sity of 4.10 × 10−8 T. What speed would a proton need to achieve in order to circle Earth 1170.0 km above the

asked by Cassandra on June 2, 2015
93. ## Physics

In the early morning hours of June 14, 2002, the Earth had a remarkably close encounter with an asteroid the size of a small city. The previously unknown asteroid, now designated 2002 MN, remained undetected until three days after it had passed the Earth.

asked by Geek on July 30, 2011
94. ## English

Thank you very much for your corrections! Here are other statements on the same newspaper article. 1) The cheetah reintroduction programme is kicking off (starting?) with a meeting of experts in September. 2) The project includes the foundation of a

asked by Henry2 on October 31, 2011
95. ## college algebra

The diameter of the Earth is approximately 7,920 miles. Given that the circumference of a circle is pi times its diameter, which statement best describes the length of a trip from Washington to Masdagascar that is approximately 8,600 miles long? a.One

asked by Anonymous on August 29, 2006
96. ## Chemistry - Periodic Table+IE(check+help)

The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give

asked by Farah on February 2, 2011
97. ## Chemistry - Periodic Table+IE(check+help)

The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give

asked by Farah on February 2, 2011
98. ## 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 Lindsay on December 17, 2007
99. ## AP Physics

At their closest approach, Venus and Earth are 4.2x10^10m apart. The mass of Venus is 4.87x10^24kg, the mass of Earth is 5.97x10^24kg, and G=6.67x10^-11Nm2/kg2. What is the force exerted by Venus on Earth at that point?

asked by Anonymous on March 15, 2016
100. ## English

I left out a few more sentences I'm really doubful about. Thank you very much for helping me. 1) In the summer my village is very lively. There are a lot of tourists who spend their holiday in bed and breakfasts and go to restaurants. 2) You didn't vary a

asked by Henry2 on November 30, 2011