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December 10, 2016

# Search: SCIENCE/ earth

Number of results: 36,658

science science science science science science
The moon orbits around the earth.Which of the following keeps the moon traveling in the same path each time it orbits the earth? A.energ from the surroundings B.Pull of gravity between the moon and the earth C.orbits in space are pushing the moon towards the earth D.the winds ...
April 18, 2007 by Hot stuff

environmental science
The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction
December 28, 2010 by Anonymous

Science
Find the gravitational acceleration if a spaceship at a distance equal to double of earth's radius from the centre of the earth (g on earth is 9.8 m/s)
September 18, 2015 by Gautam pandey

science
Find the gravitational acceleration if a spaceship at a distance equal to double of earth's radius from the centre of the earth (g on earth is 9.8 m/s^2)
September 28, 2016 by pruthviraj

earth science
describe a possible pathway of carbon through the four spheres of the earth.Identifty what each the fourspheres of the earth contains
February 13, 2011 by jason

Science
What is the circular velocity of an Earth satellite 1000. km above Earth's surface? (Note: Earth's average radius is 6371 km.)
June 13, 2013 by Mia

Science
On the main sequence, what type will have life spans of about ten billion years? I took Earth Science last year so although I do not have them in front of me, I believe the are in the Earth Science Reference Tables (ESRT).
January 2, 2007 by Liz

Science
Approximately what percentage of the estimated age of Earth does the Cenozoic Era represent and how do you know? look at pg. 9 in Earth Science Reference Tables? a. 1.4% b. 5.0% c. 11.9% d. 65.0%
June 15, 2009 by Angie

science
________ is the study of the earth. Just need to know if my answer or right or wrong. Thanks! :) Geology (Earth Science)
August 19, 2010 by ant

science
How far away from the earth does acceleration due to gravity become 1% of its value at the earth's surface. Assume that the earth is a sphere of radius 638000000cm.
September 30, 2011 by Derrick

Science
Luis wanted to create a clay model of earth and the sun. To show how Earth rotates, Luis wants to use a toothpick to represent Earth's axis of rotation. Where should Luis place the toothpick? A. Horizontally through Earth in the direction Earth is traveling B. Vertically ...
November 20, 2013 by Anna

earth science
Traditionally,how have different fields of earth science been studied?
November 29, 2007 by Alexandra

earth science
What are two lines of evidence that indicate that earth is rotating? What is the motion of the stars at night? What does the Sun do in the day? i want to seach features of the earth in its inner structure
August 30, 2006 by steph

Earth Science
Earth is always changing. What are two forces that cause the earth's surface to constantly change and what are their effects on the planet? Please answer within a few minutes.
November 4, 2009 by Elizabeth

AP environmental Science
What formula would i use to solve: If the earth has an annual growth rate of 1.2% how many people are added to the earth each year? what will be the population of earth in 2050? thanks, any help is appreciated!! :D
October 16, 2011 by Nicole

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 always benefit society?
January 12, 2013 by Emma

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 always benefit society?
January 13, 2013 by Emma

science
The pull of gravity keeps the Moon in orbit around Earth. The distance between the Earth and Moon is about 380,000 kilometers. A crew of astronauts leaves Earth on a Monday and lands on the Moon on a Thursday. They land on the side of the Moon facing away from the Earth. On ...
February 2, 2012 by Bryan

Science
Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 10 Earth radii from Earth's center? At 20 Earth radii?
June 13, 2013 by Mia

Physical Science
Here's a question from my homework that I have no idea where to even beging with it. A European "weighs" 100 kg on Earth. a. What is his mass on Earth? b. What is his weight on Earth? c. What is his mass on the moon where the acceleration due to gravity is 1/6 that of the ...
October 4, 2007 by Beth

Earth Science
Describe how Earth would be different today if. It contained no radioactive material. What would the consequences be for the Earth's interior layer?
September 30, 2009 by Breanna

Earth Science
Describe how Earth would be different today if it contained no radioactive material. What would the consequences be for the Earth’s interior layers?
December 2, 2010 by Jack

Science
Why doesn't the space station fall toward the earth, instead of remaining in space? a) It is beyond the earth's gravitational pull. B) The earth's gravity is balanced out by the attraction of the sun and other planets. C) Centrifugal force keeps it up. D) It does fall toward ...
September 11, 2011 by John

science
an imaginary dense star Z has 1/5 the radius of earth, but 1000 times earth's mass. How much would a masss weighing 1.0 N on earth weigh on Star z
January 25, 2011 by anonymous

science
How much below the surface of the earth does the acceleration due to gravity become 1percent of its value at the earth surface? The earth is assume to be a sphere of radius 6.4×10^6m.
June 25, 2016 by Ioba Bolwary Marak

science
A distant spaceship carrying a red headlight, emitting light with wavelength 600nm, is heading towards the earth. Observers on the earth detect the light from the headlight as ultraviolet light with wavelength 200nm. What is the velocity of the spaceship? b) As the space ship ...
March 9, 2014 by Relativity quest. help pls

Science
An artificial satellite circles around the earth at the height where the gravitational force is one fourth of that at earth's surface. If the earth's radius is R the height of the satellite above the surface of the earth is?
January 31, 2016 by Shubham

science
A person who weighs 600 newtons on Earth would weigh only 100 newtons on the Moon. Which statement best explains why? A.The circumference of Earth is larger than that of the Moon. B.The density of Earth is greater than that of the Moon. C.The mass of Earth is greater than that...
February 17, 2014 by victoria

Earth Science
What are two forces that cause the Earth's surface to constantly change and what are their effects on the planet? Please help I do homeschooling and I'm super behind in science please answer before 12:00 p.m. on 11-17-09
November 17, 2009 by A.J.

science
True or false A.the moon revolves around the earth B.it takes one year for the earth to revolve around the sun Che earth rotates once a day
January 29, 2013 by Anonymous

science
The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction _____. A-keep the moon and sun in orbit B-keep people grounded C-helped to create and retain Earth's atmosphere D-create and retain internal...
June 6, 2010 by Taylor PLEASE URGENT!!!

Science
The Sun exerts a gravitational force of 3.56 x 10^22 N on Earth. The mass of the Sun is 2.0 x 10^30 kg. The mass of the Earth is 6.0 x 10^24 kg. If we assume the Earth has a circular orbit of 1.5 x 10^11 m, what is the velocity needed for Earth to remain in orbit?
November 29, 2016 by Boberto

Earth Science
What are the two most common minerals located in Earth's crust? (A. Feldspar and quartz) B. Iron and copper C. Diamonds and gold D. Salt and saline Climatology is a subspecialty of A. environmental science. B. oceanography. (C. meteorology.) D. marine biology.
February 9, 2016 by Jocelynn

Earth Science
i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you
September 16, 2009 by Anomynous

Earth Science
i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you
September 17, 2009 by Need Help

Physical Science
Many people mistakenly believe that the astronauts who orbit Earth are "above gravity." Earth's mass is 6×1024kg, and its radius is 6.38×106m (6380 km). Use the inverse-square law to find a height above Earth's surface at that the force of gravity on a shuttle is about 89 % ...
June 21, 2016 by Hannah

science
A spaceship of mass 2000kg is moving towards planet Earth. Calculate the magnitude of the force that the earth exerts on the spaceship when the spaceship is 100km above the surface of the Earth. The Earth has a mass of 6*10 to the power of 24 kg and a radius of 6,4*10 to the ...
January 24, 2016 by zama

physcial science
How do I calculate the orbital velocity of a satellite that is 400 miles above the earth? Set the centripetal acceleration V^2/(R+h) equal to the gravitational acceleration, g * [R/(R+h)]^2 Then solve for V R is the earth's radius and h is the 400 mile height. g is the ...
June 25, 2007 by dave

earth science
compared to earth, earth jupiter
February 20, 2011 by Anonymous

Science
How does life on Earth depend on the sun? I put If the Earth is too near from the sun then it will be too hot and we wouldnt't be able to live. But if the Earth is too far from the Sun then it would be too cold. Is that a right answer?
November 21, 2011 by Himey

Science
The moon is about 384000 km the earth and its paths around earth is circular. The moon taken 24hr to complete one orbit. The speed at which the moon orbits the earth in km/ hour is
May 15, 2016 by Ali

Earth science
Hello! Does Jiskha have Earth Science tutors? If not, could someone direct me to a site where I could ask for help? My questions regard finding out specific heat capacity and heat of fusion and heat of vapourization of water. Thank you!
June 1, 2015 by Lucina

Science
Here is a question on my science worksheet, "if a projectile's fall matches Earth's 'BLANK', the projectile will not hit earth." i need help figuring out what would go in the blank!
February 24, 2010 by Morgan

Earth science
How long an exposure would a photographer need to photograph star trails that are complete circles? Why? The star Sirius is 4.3 light years from Earth. Determine the distance to Sirius in km and in astronomical units. THe moon's average distance from Earth is about 380,000 km...
April 19, 2009 by Lauren

Science
The weight of a body on the surface of the earth is 392N .What will be the weight of this body on a planet whose mass is double that of the earth and radius is four times that of the earth
September 14, 2016 by Saranah

science
The earth exerts a force of 2200N on an orbiting communications satellite that is 35mi above the earth..What is the magnitude of the force the satellite will exert on the earth??
March 11, 2010 by Elver Gon

science
Large craters are visible on the moon but not common on the earth's surface. Which of the following is the beady explanation of why large craters are not evident in the earth's surface in photos taken from space. A.three quarters of the earth's surface is covered by land. B....
January 23, 2016 by Tessy

Science
Here's my question--- Precession of earth's axis causes- a-axial tilt b-a change in the north pole star c-seasons d-day and night My answer was a- m i rite? Precession of earth's axis caused by the centrifugal force of the Earth's rotation... =) The cause of the precession is ...
May 24, 2007 by shivangi

physics
Find the distance (measured in earth radii, RE) from the center of the earth to a point outside the earth where the acceleration of gravity due to the earth is exactly one ninth of its value on the surface of the earth.

science
why can you never see the far side of the moon from Earth ? a) because earth is spinning too quickly b) because it cannot be seen during daylight hours c) because the moon rotates once on its axis in the same time that it takes to revolve around earth d) because the moon does ...
November 13, 2013 by victoria

Earth Science
My child is doing a project on the earth. He is trying to do a power point presentation on the earth. He ran across information that stated, "The earth is divided into several layers which have distinct chemicals and seismic properties". He would like to know something that he...
September 23, 2008 by Roderick

Physical science
When you drop a 0.36 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s^2 toward the earth's surface. According to Newton's third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth 5.98x10^24 kg, what is the magnitude of ...
February 17, 2008 by Jenna

science
If we drilled a hole straight through the earth, and dropped a golf ball down the hole, starting initially at rest, how fast would the ball be traveling when it reached the center of the earth. The earth’s radius is 6378 km.
February 6, 2014 by kristi

science
When astronauts travel into space, they can still see Earth and the moon. why is this possible? A. The sun shines in the windows of their space vehicle. B. They view earth and moon through a telescope. C. The sun's light reflects off earth and the moon. D. The astronauts look ...
March 27, 2010 by Anonymous

Physics
At the heighest point on earth, the distance to the center of the earth is approximately equal to 1.0014 times the radius of the earth. What would be in N/kg the magnitude of the gravitational field (g) due to the earth at that position? Assume 9.8 N/kg for g at the surface of...
September 6, 2011 by Hannah

earth science
how does radioactive decay provide heat energy within the earth
July 19, 2008 by kate

Earth Science
Upon what measurement is the Earth's latitude and longitude system based?
February 18, 2010 by Kate

Science
How Does Earth's atmosphere make conditions on Earth suitable for living things?
August 25, 2010 by sue

earth science
how does the apparent diameter of the sun from earth affect the orbital velocity?
March 14, 2011 by k

Science
WHICH SYSTEM HAS THE GREATEST TIDAL EFFECT? EARTH-SUN OR EARTH-MOON?
May 5, 2015 by Blake

Science
What would happen to ocean tides on Earth if Earth stopped rotating?
December 18, 2015 by Josh

Earth Science
Why is the speed of Earth's rotation different at the equator than it is at the poles?
October 7, 2009 by Jackie

Science
If Earth's mass were smaller, how would Earth's gravity be affected?
October 3, 2010 by Glen

Earth Science
Does energy flows through the Earth's system by heat?
September 28, 2012 by Matt

Science
The mass of astromout measured on earth in 8500g. What will be his weight on earth
September 25, 2016 by Matred

earth science
" A condition of gravitational and bouyant equilibrim between earth's litosphere and asthenosphere" ... is what?
March 10, 2008 by Stephen

Science
How does the earth's tilt affects how directly light reaches different parts of the earth?
February 25, 2009 by Matt

earth science
describe five ways earth's oceans affect our life?
May 9, 2011 by nicole

Earth Science
Can someone five me an example of how carbon cycles through the Earth's system?
September 28, 2012 by Matt

physical science
The orbital velocity of an earth satellite in an orbit 400 mi above the earth?
April 8, 2013 by ben

Earth science
Which single factor generally has the greates effect on the climate of an area on the earth's surface?
May 9, 2011 by Maria

Earth science
Earth’s troposphere, hydrosphere, and lithosphere contain relatively large amounts of which element?
April 2, 2013 by Rihanna

Science
What the force of attraction between earth and objects on earth surface pesanteur..I need it English
September 11, 2016 by jaseanturner1017

Science
The cause of the seasons on Earth is often mistakenly attributed to the elliptical orbit of Earth around the sun. What is the actual cause of the seasons? Tha actual cause of the seasons is because of the tilt of Earth's axis. please correct me if i'm wrong, thanks :-)
February 8, 2010 by Sara

Science
The cause of the seasons on Earth is often mistakenly attributed to the elliptical orbit of Earth around the sun. What is the actual cause of the seasons? Tha actual cause of the seasons is because of the tilt of Earth's axis. please correct me if i'm wrong, thanks :-)
February 8, 2010 by Sara

science
a crew of astronauts leaves earth on a Monday , lands on the moon on a Thursday. they and on the side of the moon facing away from the earth. on what day would the astronauts be able to see earth from the moon, explain
October 13, 2015 by robin a

earth science
how are scientist approaching the study of Earth today?
November 29, 2007 by Alexandra

earth science
decribe the composition and nechanisms of the earth crust
September 24, 2009 by tunday

earth science
how do the four subsystems of earth interact with one another
January 8, 2010 by shaquetta

Earth Science
How energy flows through the Earth's system.
September 30, 2012 by Jacob

Earth Science
How energy flows through the Earth's system?
October 1, 2012 by John

Earth and Space Science
which is closer to earth a moon or galaxy?
March 23, 2013 by Stephanie

Science
On what sides does a "bulge" in the earth's oceans appear on the earth?
May 3, 2015 by Kim

Earth Science
What is the atmosphere's role in the exchange of gases on Earth?
June 16, 2015 by Victoria

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 this phenomenon? The ...
July 27, 2015 by Nour

science
if a planet has four times the density of earth half the diameter will the gravity be stronger or weaker than earth
August 31, 2008 by ann

science
The seasons change BC A.the earth rotates slowly or B. The earth is tilted on its axis as it revolves around the sun
January 29, 2013 by Anonymous

earth science
If the earth was made 4.5 billion years ago, how comes we don't have any craters or rocks from that time?
September 28, 2014 by Saige

Science
Why is freshwater a limited resource? A. because most water on Earth is in lakes B. because most water on Earth is in clouds C. because most water on Earth is in the ground D. because most water on Earth is saltwater D
January 10, 2014 by Anonymous

Hi, I need some information about Earth Quakes. My question is: Where & Why do Earth Quakes occur? I'm not cheating or anything I just need some help with this topic for the project I'm doing about Earth Quakes right now. Please Help ME! Thanks :D
November 3, 2015 by MusicLover14

science
a man has a mass of 80,0 kg is standing on the surface of the earth. a )calculate the magnitude of the attractive force (gravity) that the earth exerts on the man.(784n) b)how does your answer in a) compare to the magnitude of the force that the man exerts on earth? c)use your...
February 28, 2016 by mamare

earth science
what is the greatest danger from volcanoes?? a. watery lava b. mud flows c. oxygen d. bulging of the earth's crust
June 6, 2009 by matt

science
Suppose a near earth asteroid of radius 50m strikes the earth surface.what could be the impact of such a collision?
December 21, 2009 by sam

Earth Science
Which of the following help create volcanoes? plate tectonics landslides cracks in Earth's crust built up magma
January 28, 2010 by help

physical science
the attraction or pull of a person"s body toward the earth by the earth is called weight.the reaction to this force is the:
January 17, 2011 by kitsy

Science Earth
Would earthquakes of similar magnitudes in different regions of the Earth cause approximately the same levels of damage?
June 13, 2011 by Anonymous

Earth Space
Which branches of earth science would the hydrosphere interact with? I said biosphere, atmosphere, and geosphere. Is that correct?
August 7, 2013 by Bryce

science
A meteorite weighs 300 Newtons on the moon. the moons force of gravity is 1/6 that of earth. what is the meeorites weight on earth?
March 19, 2014 by kimmy plus

Science
Which sphere of the Earth system contains nearly all of Earth's mass? A. the geosphere B. the atmosphere C. the biosphere D. the hydrosphere
April 13, 2015 by Deazzy

science
1. If person weighs 176 lbs on earth what is his or her mass on mars where the force of gravity is 37% of that on earth. With Complete solution
September 25, 2016 by sky

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