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

25,161 results, page 82

pre ap physics

** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed because: ** A. charged ...

Physics

Suppose a straight 1.60mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 4.2×10−5T . What current would the wire carry?

english

These are the times that try men’s souls: The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of his country; but he that stands it NOW, deserves the love and thanks of man and woman. Tyranny, like hell, is not easily conquered; yet we ...

English

Posted by rfvv on Thursday, December 16, 2010 at 3:40pm. Posted by rfvv on Thursday, December 16, 2010 at 3:21am. {At a restaursant} For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions above all grammatical? What is ...

Technology (Correct please)

(1) In what stage does publishing occur? A- first B- second C- third D- final ~~~~~~~~~~~~~~~~~ My answer is D- final ~~~~~~~~~~~~~~~~~ (2) Publishing can include multimedia or multiple communication methods. Some types of multimedia are images, video, and _______. A- Sound B...

Physical Geology

The Earth is a sysytem that is comprised of four subsystems. How do these four subsystems interact with one another? And identify one type of resource from each subsystem on which people depend.

Earth/Environmental Science

"Tsunamis" are giant waves caused bhy earthquakes under the ocean floor. They _______ islands and coastlines. What does tsunamis do to islands and coastlines?

chemistry

If the sun is 150,000,000 km away, how many minutes does it take light to travel from the sun to the earth? Assume light travels at a speed of 3.0x10^10 cm/sec

physics

a teniss ball thrown vertically upward reaches a maximun height of 33 meters above the surface of earth. at its maximun height the speed of he tennis ball is

Earth Science

If atmospheric pressure is 30.40 inches of mercury, what is the air pressure in millibars? (1)1016 mb (2)1028.3 mb (3)1029 mb (4)1029.5 mb I think that the answer is either 2 or 4, could you check my answer?

Earth science

What is an example of a stable system? How were you able to determine whether or not this system is stable? Please don't attach files, my parents do not allow me to click on any attached files!

Math

In order to cover upfront expenses, Pinecrest Enterprises must be able to come up with $50 million of its own capital reserves. Presently, Pinecrest has $37 million in capital reserves available, and can add $1.5 million per month . After how many months will Pinecrest ...

Earth Science

What time of day might an early explorer have planned to enter the harbor? When might have he planned to leave?

Hurricanes are very dangerous

could you help me find something that will help me write a paragraph on hurricanes are very dangerous to earth and people causing tremendous devastation.

PHYSICS

Is the weight of a body the same thing as its mass? Discuss briefly. Is the weight of a body constant at all places on the earth? is the mass?

earth science

what are the six most abundant components (elements)dissolved in seawater? what is produced when the two most abundant elements are combined?

physics

The acceleration due to gravity on the moon is 1.62 m/s2. What is the length of a pendulum whose period on the moon matches the period of a 4.50-m-long pendulum on earth

physics

The acceleration due to gravity on the moon is 1.62 m/s2. What is the length of a pendulum whose period on the moon matches the period of a 4.50-m-long pendulum on earth

Science (Physics)

On the moon, the acceleration due to gravity is only 1.6 m/s/s. If someone on earth can throw a baseball 24.2 m high, how high could she throw it on the moon?

physics

The acceleration due to gravity on the moon is 1.62 m/s2. What is the length of a pendulum whose period on the moon matches the period of a 4.00-m-long pendulum on earth?

Physics

Ninja goes to space! If Ninja has a weight of 83.59 N on earth and she lands on a planet that has an acceleration due to gravity of 1.44 m/s2, then what is her weight on the new planet?

science

if moon goes away, what would happen to the earth? if you drop a ball 3 meters and it bounds 1/2 seconds, what would happen on the moon?

Math

My neighbor hired me to plant 10 trees. However, he wants 5 rows of 4. How am I going to do this just using 10 trees? you cant you need 20 trees or just do 2 rows of 5 is this is an actual math question and not a real life question then the answer is impossible or unsolveable ...

4th grade

bertrand is building in the form of a rectangle. he knows that the garden will be 10 feet wide. he wants to fence in the garden but only has 56 feet of fence to work with. how long mist the garden be to fence it with exactly 56 feet of fence? show how you found your answer. in...

Re: Physics/Math

Posted by Technoboi11 on Wednesday, March 7, 2007 at 1:09am. Zero, a hypothetical planet, has a mass of 1.0x10^23 kg, a radius of 3.0x10^6 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched with an initial ...

+ --> a sphere --> (+)

Multiple Choice Help: ** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed ...

Science

Identify and describe the 3 main categories of trans-Neptunian objects. The three main categories of trans-Neptunian objects are Planetoids, the Kuiper Belt, and the Oort cloud. Planetoids are dwarf or minor planets, natural satellites, and minor bodies. Planetoids are ...

physics problems

please check my answers. 17. explain how the sport of pole vaulting dramatically changed when flexible fiberglass poles replaced still wodden poles? -the fiberglass poles had more momentum and PE than still wooden poles? 20. does the international space station have ...

science

2. Assignment: Psychological Disorders’ Presentation For this assignment, you will create a Microsoft® PowerPoint® presentation. Your presentation must briefly summarize how psychological disorders are classified including the role of the DSM IV. Your presentation must ...

calculus

It is desired to design a ski jump ramp. The ramp will be represented by a polynomial whose graph is a side view of the ramp. The ramp must fulfill the following specifications: The ramp begins at a height of 100 feet and ends at a height of 10 feet above the ground. From ...

Technology

Is there anyone who can double check this for me? 21. You have learned that there are seven inputs common to all technological systems. List these inputs and give an example for each one. 21. There are seven inputs that are common to all technological systems. These include ...

physics

What is the linear speed of a point: a) on the equator, b) on the Arctic Circle (latitude 66.5 degrees N), c) at a latitude of 45.0 degrees N, due to the Earth's rotation? a relevant equation is v=rw, but I'm not sure how to apply it to the equation

EARTH SCIENCE

Briefly discuss stellar evolution. What forces are opposing one another throughout the life of a star? How do these forces influence the various stages of a star's life cycle

11th grade Chemistry 1

If your weight is 120 pounds and your mass is 54 kilograms, how would those values change if you were on the moon? The gravitational force on the moon is 1/6 the gravitational force on Earth.

Earth Science

Please and Thank you. Mercury is 13.6 times more dense than water. If a container can hold 20g of water, how much more massive would an equal volume of mercury be?

Physics

The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 10 Earth years. a) What is the asteroid's orbital radius? b)What is the asteroid's orbital speed?

science

which type of eclipse would you expect to see if the moon passes directly between earth and the sun? a) a solar eclipse b) a lunar eclipse c) a total lunar eclipse d) a penumbra

earth science

air pollution in pennsylvania causes ______ in new england because the wind blows the pollution into new England. can someone please help, I cant find this anywhere.

Earth Science

  A heterogeneous mixture is a  A. mixture in which its components retain their identity. B. component added to sand that makes it inseparable. C. mixture that always contains water. D. mixture in which its components can't be separated.  A?       

chemistry

When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important. In order for a hydrogen bond to occur there must be both a hydrogen donor and an acceptor present. The donor in a hydrogen bond is the atom to which the hydrogen...

physics

How long must an ideal pendulum (or the radius of an air track) be such that one swing (half period) lasts very near one second? Use = 9.81 m/s How long must an ideal pendulum be such that one swing (half period) lasts very near one second when it is placed on Mars? The ...

science

what would be the temperature? hottest area on earth outside during spring outside during autumn body temperature

science

earth science physical geology; If rock A cuts across rock B, then rock A is rock B a. younger than b. the same age c. older than

Physical Science

If the southern hemisphere contains 10 percentland and the northern hemisphere contains 40 percent land, what percentof Earth is land?

physics

The moon has a mass of 7.35 E 22 kg and is located 3.84 E 8 meters from the Earth. If Ellen, an earthling, has a mass of 47 kg, what is the gravitational force between Ellen and the moon?

Algebra

The ratio of the weight of an object on Mars to the weight of an object on Earth is 0.4 to 1. How much would a 120-lb astronaut weigh on Mars?

Earth Science

Analogy: melting is to freezing as partial melting is to _______? a. partial freezing b. magma. c. boiling. d. fractional crystallization.

physics

On the moon, the acceleration due to gravity is only 1.6 m/s/s. If someone on earth can throw a baseball 24.2 m high, how high could he throw it on the moon?

Physics

A distant planet has a mass of 0.6400 ME and a radius of 0.9000 RE. What is the ratio of the escape speed from this planet to the escape speed from the earth?

Physics

A distant planet has a mass of 0.6400 ME and a radius of 0.9000 RE. What is the ratio of the escape speed from this planet to the escape speed from the earth?

physical science

If the mans weight is 490N on earth,calculate his weight on the moon that has the gravitational force 1/2 of the gravitational force of the aerth

algebra

please help me with this I need to graph y=|x-3|-2 and describe the translations. translations are when you change it, I know that but how on earth do you graph something like this? please help thank you so much!

Calc AB

Remember that f(x) must be one-to-one (only one y-value for each x-value) over the domain where f –1(x)is defined as a function. So, in some cases you must restrict the domain of f(x) so that it's one-to-one. There might be more than one section of domain that's one-to-one. ...

science

When cold air moves below warm air (which rises), we feel _______, depending on how fast the air moves. a) an earthquake or earth tremor b) a drizzle or rainstorm c) a breeze or wind d) a tornado or thunderstorm d

physics

a body is released from a height and falls freely towards the earth. exactly one sec later another body is released.what is the distance between the two bodies 2sec after the release of the second body. if g=9.8m/s^2.

Physics

In a simulation on earth, an astronaut in his space suit climbs up a vertical ladder. On the moon, the same astronaut makes the same climb. In which case does the gravitational potential energy of the astronaut change by a greater amount?

physics

A 2.5 kg mass weighs 23.75 N on the surface of a planet similar to Earth. The radius of this planet is roughly 7.7 × 10^6 m. Calculate the mass of of this planet. The value of the universal gravitational constant is 6.67259 × 10^−11N · m2/kg2. Answer in units of kg

physics

A 3.3 kg mass weighs 30.03 N on the surface of a planet similar to Earth. The radius of this planet is roughly 7.4 × 106 m. Calculate the mass of of this planet. The value of the universal gravitational constant is 6.67259 × 10−11 N · m2/kg2. Answer in units of kg

Earth/Space Science

Cloud seeding, which causes rain by introducing condensation into a cloud, has been used to bring precipitation to areas experiencing drought. Analyze the benefits and risks of cloud seeding.

PHSC

In a simulation on earth,an astronaut in his space suit climbs up a vertical ladder.On the moon,the same astronaut makes the same climb.In which case does the gravitational potential energy of the astronaut change by a greater amount?

physics

A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

math

the force of gravity varies inversely as the square of the distance between the centers of the two masses. If an object weighs 500 pounds at a distance of 12,000 miles from the center of the earth, at what distance will the weight be 50 pounds

physics

A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

physics

A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

physics

A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

Pyhsics

The weight of the atmosphere above 1 m2{\rm m}^{2} of Earth's surface is about 100,000 N{\rm N}. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m3{\rm kg}/{\rm m}^{3}. Calculate where the top of the atmosphere would be. ...

physics

A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

Physics

A 23.7 kg child, with a 4.35 kg backpack on his back, first stands on a sidewalk and then jumps up into the air. Find the net force (positive up/negative down) on Earth due to the child when the child is (c) standing still and (d) in the air.

Chemistry

The space probe Pioneer 11 was launched April 5,1973, and reached Jupiter in December 1974 traveling a distance of 998 million km. How long did it take an electromagnectic signal to travel to earth from Pioneer 11 when it was near Jupiter. Where do I begin???

physics

You are explaining to friends why astronauts feel weightless orbiting in the space shuttle, and they respond that they thought gravity was just a lot weaker up there. Convince them and yourself that it isn't so by calculating how much weaker gravity is at h = 330 km above the ...

physics

You are explaining to friends why astronauts feel weightless orbiting in the space shuttle, and they respond that they thought gravity was just a lot weaker up there. Convince them and yourself that it isn't so by calculating how much weaker gravity is at h = 330 km above the ...

3rd grade science

Solar System Project: I would like to know if the moon is between earth and mars. I am making a shoe box model of the solar system. I have to put the planets in order. That's all I need to know. Thanks a bunch!!!

Earth Science

Judging from the sizes of the before-and-after craters atop Mount St. Helens (Figs. 4.8 and 4.9 of the Lab book), which volcanic event appears to have been the more explosive, the last one before 1980, or that which occurred in 1980

science

the amount of solar energy trhat is intercepted by the earth is___by the __ of __. a) determind, lenght , daylight b) affected, presence, clouds in the sky c) influenced, phenomena, day and night d) influenced, phenomena, parallelism of axis e) all of the above

earth

waste produced by people along the east coast of the united states has been dumped into the atlantic ocean where it is distriuted y surface ocean currents, Which coastel area is most liekly to become polluted by this waste?

Physics

If the 50.0 kg boy were in a spacecraft 5R from the center of the earth, what would his weight be? (Use the 50.0 kg boy for significant figures) i got 20N again not sure.. it dosnt tell me if i got them wrong or right online classes are horrible and very confusing

physics

n anti-aircraft gun fires a 23.7 kg shell with a muzzle speed of 880 m/s. What magnitude propulsive force was necessary to attain the muzzle speed within the 5.05 m barrel? (Assume constant acceleration and neglect the Earth's gravitational effect.)

Geometry

find the distance between the cities. Assume that Earth is a sphere of radius 4000 miles and that the cities are on the same longitude (one city is due north of the other) Dallas, Texas Latitude: 32* 47' 39" Omaha, Nebraska Latitude: 41* 15' 50"

Science- Earth's History- 1 question

Which of the following events occurred during the Mesozoic era? a. Dinosaurs became common on land. b. Whales and dolphins evolved in the oceans. c. Reptiles evolved on land. d. The supercontinent Pangaea formed. i think its c

Social Studies

According to Aborigine spiritual beliefs, the Earth is (1 point) a. a place of unending suffering and pain.*** b. a source of wealth to conquer in the name of one's ancestors. c. an ancient gift of the gods. d. a place where humans were banished from the gods.

Introduction to database design

Given the following complicated business rules, create the appropriate Crow’s Foot ERD. (50 points) a. A store may place many orders. (Note the use of “may”) b. An order must be placed by a store. c. An order contains at least one order line. d. Each order line is ...

Math - Fundamental Theorem

We can actually use the Zeros Theorem and the Conjugate Zeros Theorem together to conclude that an odd-degree polynomial with real coefficients must have atleast one real root (since the non-real roots must come in conjugate pairs). But how can we get the same conclusion by ...

money

What are the two characteristics that dollars must have to be accepted as money in our society? I think its the spider and the line along the side I'm not sure but i think that the line along the side is one of them.I had that question before but i can't remember what were the...

Chemistry

which must be a mixture of substances? 1. solid 2. liquid 3. gas 4. solution

psychology

In this, a choice must be made between two attractive goals?

Chemistry

A gas initially at 20C must be changed to ? C to triple the pressure.

chemistry

A gas initially at 30C must be changed to ? C to triple the pressure.

Chemistry

A gas initially at 20 C must be changed to ____ C to triple the pressure.

Science

What are some things children must learn but animals don't need to know?

chemistry

Which must be a mixture of substances? a- Solid b- Liquid c- Gas d- Solution

chemistry

What functional group(s) must be present in a monomer of a condensation reaction?

chemistry

What functional group(s) must be present in a monomer of a condensation reaction?

stoichiometry

if 3.00 moles of water are produced, how many grams of oxygen must be consumed?

chem

What functional group(s) must be present in a monomer of a condensation reaction.

LANGUAGE

A MAN'S GREEN WHISKERS (TWO WORDS,MUST RHYME)

math

What is the 5% rule, which shows whether a y-intercept is negligible or must be explained?

Chemistry

In paper chromatography, why must the starting line be drawn with pencil? Thanks!

chemistry

Why must a balanced chemical equation be used when determining Keq?

A.P. Economics

Why must the opportunity cost of a decision always be something desirable?

english

i must (fetter) the fact we do not have comfortable shuttles from the lot

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