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

25,161 results, page 58

CHEMiSTRY PLEASE HELP

What is the mass of 4.2 kg of gold when it is transferred to a planet having twice the gravity of earth?

earth

When combining atoms, how do i use the balloons and letter notations to show the product formed?

6th grade

earths diameter is approxametly 8000mi at th equator.how fast is the earth spinning?

4th grade science

What kind of heat transfer cause Earth's najor wind pattern?

Math

You are standing on the equator of the earth (radius 3960 miles). What is your linear and angular speed?

Science

Can you give me some information and facts about the flow of matter and energy in the earth -thank you

science

why is the angle of rays of sunlight so important in determining the amount of energy collected by the earth

Earth Science

Two meanings for the horizontal lines on the geologic History NYS chart.

social studies

what were the lines of defence dug into the earth? and what was willsons plan for peace?

earth

if the illustration is the effect of freezing water on rock what term best decribe the process?

Language arts

What are the verbs in this phrase: Hawaii is one of the most beautiful places on earth

spanish

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

EARTH SCIENCE

Some factors that might influence solar radiation on the Martian surface

Algebra

An object weighs 10 lbs and is 200 miles from the center of the earth. Solve for the constant

english 9th grade

What are some symbols in 'a journey to the center of the earth' by jules verne

PHYSICS

Calculate the radial acceleration of an object on the ground at the earth's equator in m/s2, turning with the planet.

Physics

Calculate the radial acceleration of an object on the ground at the earth's equator in m/s2, turning with the planet.

Earth Science

What are the primary heat absorbing gases in the atmosphere? What wavelength of radiation do they absorb?

physics

How would the use of dark matter affect the earth and universe? Explain possiblities

space

traveling 10,000 miles per hour how long will it take to get to jupiter from earth

Science

why is it necessary for water, carbon, nitrogen and oxygen to be recycled through the earth's ecosystem?

science

If you Weighed 360 pounds on Earth with your space suit on, what would you weigh on the moon? Why?

science

what keeps the moon traveling in the same path eah time it orbits earth

Earth Science

need to find the mystery phrase made from the following letters DNALFOSSERGORPEGA

Earth science

what is the most important reason that sediments at beaches are usually rounded and smooth

science

would a screen be useful for separating a mixture of gravel and diatomaceous-earth powder?

Science

If one object on the moon weighs 42 pounds how much would it way on earth? Why?

astronomy

what is the speed of a point on the equator in miles per hour as the earth rotates on its axis?

earth

Rocks that become hot enough to melt and flow are referred to as ___ by scientists

science

What is the magnitude of g at a height above Earth's surface where free fall acceleration equals 6.5m/s^2?

physical science

by what means can earth scientists predict discharge of a stream afeter a rainstorm?

physic

calculate the attractive force between earth and sun. Neglect the radii, D= 1.50X10

earth

How do Plate tectonics affect the Atmosphere, Hydrosphere, Geosphere, and Biosphere? Thanks SO much in advance!:D

earth science

what radioactive isotope would be most useful in dating a mastodont bone ?why?

Science

green house effect influences the temperature on Earth because try not to give a link

Earth Science

How long will it take for Potassium to have a 25% of oringinal radioactive product left?

maths

the radius of our plant earth is about 6400 km how far is it around the equator

science

The earth has a magnetic north and south. How does this help up with evidence to support the theory of Continental Drift?

physics

what is the acceleration due to gravity at a distance of 2 earth radii abouve earths surface?

science

On Earth, the ratio of the force (newtons) to the mass (kilograms) of an object is always the same

physics

why one cannot find the north pole of the earth using only a simple compass

physics

what device could use th earth's magnetic felds to produce energy and how it would work?

Earth-Space Science

what factors might affect the length of the rays after an impact?

Earth Science

Develop a presentation on two ways technology has built on scientific knowledge?

wireless communications

what is the period of the space shuttle traveling at 250km above the earth and what is its velocity

Earth Science to DAmon

Give positive and negative effects of climate change in Canada..

physics

what will happen to the bone structure if earth becomes more dense than its actual density?

Chemistry help

Write a descriptive text and a word equation on how silicon is extracted from earth's crust' .

Science

If there was zero change in Earth’s eccentricity, how might that affect the possibility of an ice age?

Science

Describe the apparent motion of the stars and planets that is caused by the revolution and rotation of the earth.

science

How would life be different without resources taken for under earth's surface?

Earth science

Why are so few alternative sources of energy in use in the united states today??

earth

The radius of the sun is 695 500 km What is its approximate volume written in Scientific notation?

Earth Space

What is fission? How is Einstein's theory of special relativity expressed? What does each letter stand for?

Earth Space(soon please!)

Hypothetically, how hot do you think a green star would be?

earth science

How is the decaying of radioactive uranium into lead used to date rock?

Earth Science (Geography)

In what way can the soils, geology and slopes affect river flow?

EARTH SCIENCE

When the water level of a stream or river exceeds its natural banks, it has reached its

Math

Why animals and plants are found on earth but are not on other planets of the solar system? Please ,,help me

SCIENCE

1. which of earth’s spheres contain most of its mass? A. atmosphere b. hydrosphere c. geosphere d. biosphere

surface processes on earth

What is the most significant factor that ontros yhe development of soil.

eave Earth

any one object which you would like to sell in market and prepare 5 lines on it

Earth Science

7. The original location of an earthquake is also known as the A. hotspot. B. magnitude. C. horizon. D. epicenter.

Earth Science

Explain how you could measure the density of a mineral with an exact amount of water and a scale .

Earth Science

   What element has 81 protons in the nuclei of its atoms?  A. Thallium B. Uranium C. Platinum D. Lead A?

Earth Science

12.   The original location of an earthquake is also known as the  A. horizon. B. epicenter. C. hotspot. D. magnitude. B?

PHYSICS

A hypothetical planet has a mass 1.55 times that of Earth, but the same radius. What is g near its surface?

physics

If a man weighs 820N on d earth what would be on Jupiter, where the acceleration due to gravity is 25.9m/s

Earth Science

Which of the following is NOT generally associated with a thunderstorm? A. tornado B. lightning C. dry air

earth science

What is the most abundant fossil fuel? A:Coal B:Gas C:Wood D:Oil

PHYSICS

A hypothetical planet has a mass 1.49 times that of Earth, but the same radius. What is g near its surface?

Physics

How far above the surface of the earth would you have to be before your weight is reduced by 13.52%?

Science

If the Earth was tilted so that the Arctic and the Antarctic were in the equator's location, how would it affect the climate?

science

what can you infer from the fact of all life on earth is related f you go back far enough?

miami dade

a student designed an experiment to demonstrate the interactions between earth systems

physics

How many minutes would it take a radio wave to travel from the planet Venus to earth?

physic

How fast (in meters/second) is an object moving on the earth, if its speed is specified as Mach 0.2 ?

Social science

What role do wind patterns and ocean currents play in the earth's climate? (10)

science

Why are the coldest temperatures at the 50 km height from the surface of the Earth, occur generally at tropical tropopause?

English

1. So the necklace on his desk had to be the real diamond necklace. 2. So the necklace on his desk must have been the real diamond necklace. (Does #1 mean #2? What is the difference between them?) 3. He must be strong. 4. He has to be strong. (Are both grammatical and the same...

English

1. I lost my watch. I must buy a new one. 2.I lost my watch. I must buy a new it. 3. I saw a big one. 4. He has a small one. Is #1 grammatical? What about #2? Is #2 ungrmmatical? Can we use the pattern, 'a adjective one' only?

psych

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 have at least one slide for each of the major classes of ...

psych

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 have at least one slide for each of the major classes of ...

Healthcare Management

Which of the following statements about reorganization is true? A. Organizational structure must be changed to accommodate changes in strategy. B. Managers shouldn't waste their time reevaluating organizational structure and processes. C. An organization's strategy must be ...

UNIVERSITY COMPOSITION AND COMMUNICATION I

write 9 sentences about financial planning. Each sentence must demonstrate a different verb tense (so, only use each tense once). For each sentence, identify the subject, the verb, and the verb tense demonstrated. In order to receive full credit, you must have included any ...

Physics

A crank .25 long turns a shaft with a diameter of 3cm around which part of a rope is wound. One end of the rope hongs free and supports a weight of 4200nt. (a) What torque does the weight exert on the shaft? (b) What torque must be excerted on the crank to keep the system in ...

Physics

An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. He was supposed to travel due north for 4.9 km, but when the snow clears, he discovers that he actually traveled 7.8 km at...

Physics

Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of birth. The only known force a planet exerts on earth is gravitational. (a) Calculate the gravitational force exerted on a 4.00 kg baby by a 90 kg father 0.200 m away at...

maths

Let's denote the three numbers by a1, a2, and a3. Consider the third degree polynomial: p(x) = (1 + a1 x)(1 + a2 x)(1 + a3 x) Take the logarithm: Log[p(x)] = Log(1 + a1 x) + Log(1 + a2 x) + Log(1 + a3 x) Expand in powers of x by using that: Log(1 + x) = x - x^2/2 +x^3/3 - x^4/...

Physics

In projectile motion the acceleration at the highest point of curved motion is___. a. 0 b. g c. undefined d. –g Which is true about an object was dropped from a 5 storey building? a. initial velocity is zero b. acceleration is equal to –g c. displacement is negative d. All...

Chemistry

Ok I think I figured this out but im not sure if its right please help. Thanks(= Determine the oxidation number for nitrogen in each of the following a)NH3 = -3 b)NO2-1 = 2 c)N2= 2 d)NO2Cl= 2 e)N2H4= 2 The first one is right. All must add to zero for a compound OR to the ionic...

Physics

The orbit of a Moon about its planet is approximately circular, with a mean radius of 2.24 × 10 8 m. It takes 35.5 days for the Moon to complete one revolution about the planet. Find the mean orbital speed of the Moon. Answer in units of m/s Find the Moon’s centripetal ...

Chem II

2.5 mol NOCl(g) was placed in a 2.50 L reaction vessel at 400 degrees C. After equilibrium was established, it was found that 28% of the NOCl had dissociated according to the equation: 2NOCl(g)<-->2NO(g)+Cl2(g) Calculate the equilibrium constant, Kc, for the reaction. ...

Science

Cassie is writing an equation to show the effect of gravitational pull of the sun and moon on tidal range which equation would Cassie use to show the effect of the sun and the moon on Spring tides? A - sun + moon = spring tides B - sun + Earth = spring tides C - moon - sun = ...

Science

Cassie is writing an equation to show the effect of gravitational pull of the sun and moon on tidal range which equation would Cassie use to show the effect of the sun and the moon on Spring tides? A - sun + moon = spring tides B - sun + Earth = spring tides C - moon - sun = ...

Math

Create a container to store extra shirts and hats. Some shirts and hats get sold and no one comes to pick them up. They must be stored for next year. What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume), how do you ...

calc

find the values of a nad b if the function f(x)=2x^3 + ax^2 + bx + 36 has a local max when x=-4 and a min when x=5 First you calculate the derivative: f'(x)=6x^2 + 2ax + b (1) At the local maximum and minumum f' is zero. If a polynomial is zero at some point p, then it must ...

LA

Be still, sad heart! and cease repining; Behind the clouds is the sun still shining; Thy fate is the common fate of all, Into each life some rain must fall, Some days must be dark and dreary. Which type of context clue helps you understand the meaning of the word repining? A. ...

Inorganic chemistry

Calulate E naught cell for the reaction below 5 Cd(s) + 2 MnO4^-(aq) + 16H+(aq)+ 2 Mn2+(aq) + 8 HxsO(l) The oxidation anode must be 5Cd(s) ==> 5Cd2+(aq) +10e^- The reduction cathode must be 2MnO4^- + 16H2^=(aq) + 10e^- ==> 2Mn2+(aq) + 8H2O E naught cell = E naught ...

math

You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an ...

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