Why must the centre of the satellite orbit coincide with the centre of the Earth?
25,476 results, page 50

physics/ conversions
Please check these problems. 1. 92 X 10^3 km > dm My answer: 9.2 X 10^8 dm 2. 5.52 X 10^8 g > kg My answer: 5.52 X 10^11 kg 3. 8.66 X 10^9 m > mm My answer: 8.66 X 10^12 mm 4. 1 um > m My answer: 1 X 10^6 m Thanks. 1 and 4 are correct. No so for 2 ... 
spanish
Using the subject “usted” and the verb in the imperative, tell your instructor three things she or he must do. Then tell your instructor two things she or he must not do. You will be graded on accuracy and pronunciation. Provide your sentences in Spanish. 
Chemistry
A solution contains 0.133 g of dissolved Lead. How many moles of soduim chloride must be added to the solution to completly precipitate all of the disolved lead? What mass of sodium chloride must be added? 
spanish
Using the subject “usted” and the verb in the imperative, tell your instructor three things she or he must do. Then tell your instructor two things she or he must not do. You will be graded on accuracy and pronunciation. Provide your sentences in Spanish. 
Math
A rope is 60 in. in length and must be cut into two pieces. If one piece must be five times as long as the other, find the length of each piece. Is one part of the rope 5in? 
Physics
A die is designed to punch holes of radii 2.17 x 102 m in a metal sheet that is 5.53 x 103 m thick. To punch through the sheet, the die must exert a shearing stress of 3.5 x 108 Pa. What force must be applied to the die? (Hint: Consider carefully which area is used in your ... 
mechanical properties of materials
A cylindrical steel bar is required to support a load of 650 N. the required bar must be 0.17 m in length and must not deform by more than 0.015 mm. given that the Young's modulus of steel is 210 GPa, calculate the minumum diameter of the bar. 
mechanical properties of materials
A cylindrical steel bar is required to support a load of 650 N. the required bar must be 0.17 m in length and must not deform by more than 0.015 mm. given that the Young's modulus of steel is 210 GPa, calculate the minumum diameter of the bar. 
Physics
A 1000kg car accelerates from 3m/s East to 24m/s East at a rate of 3m/s. If the force of friction is 500N West; how much ower must the car exert? If heat and mechanical losses make the car only 60% efficient, what total power must be exerted to accomplish the acceleration in ... 
busiess communication
. In which of the following situations would using the word "you" typically NOT be appropriate? (Points: 5) When you must inform a subordinate that she has inadvertently made a costly error When you must inform a subordinate that you have passed her idea on to your superior ... 
English
A: May I bring a radio on a camping trip? B1: No, you must bring it. B2: No, you must bring one. (Which answer is right? Do we have to use 'one' or 'it' as the answer to the question?) 
Math
Graph and identify the coordinates of a rectangle with a length of at least 5 units and a width of at least 2 units. Each vertex of the rectangle must be in a different quadrant. Two of the points must have rational coordinates that are not integers. 
Math
1. Graph and identify the coordinates of a rectangle with a length of at least 5 units and a width of at least 2 units. Each vertex of the rectangle must be in a different quadrant. Two of the points must have rational coordinates that are not integers 
precalculus
Can you check my answer? Which of the following shows the best next step to prove the following by mathematical induction? 1+4+7+10 + + (3n2)=n/2(3n1) 1.When n=1, the formula is valid because (3*12)=1/2(3*11) (32)=1/2(31) 1=1/2(2) 1=1 A. You must show that 1+4+7+10 + + (... 
chemistry
3 part question If an object is completely submerged in a liquid, what volume of liquid does the object displace? List the special waste disposal instruments that must be followed. List the special safety precautions that must be taken. 
physics
In physics what are the dependent variables between 0 and 2 on a line graph? I must use the rounded number to mark off intervals along the axis. The intervals must be the same amount each time (count up by the same number). 
math
A factory is to be built on a lot measuring 210 ft by 280 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory. a) What must the width of the lawn be? b) And If the dimensions of the factory are A ft by B ... 
math
Mercy must obtain an average mark of at least 85 to get an A grade in her mathematics examination,out of the four examinations she obtained 80,85 and 82 in the first three. Find the mark she must obtain on the fourth examination of to enable her get an A grade. 
english
Homework Help: language Posted by trey on Tuesday, May 28, 2013 at 11:18pm. Which of the following sentences is punctuated correctly? A. A carpenter must use certain tools, hammers, saws, chisels, to finish a job. B. A carpenter must use certain tools hammers, saws, chisels ... 
General Biology
There is only one bag potato chips left on the planet Earth. Ed and Trina have found it on the far side of ‘look out’ mountain with 2 grams of water inside the bag. The chips were soggy. Until another source of nutrients has been discovered they must share this bag of ... 
PhysicsPlease check
If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2, then the orbit is ... 
Physics
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 2.26 × 1011 m. Determine the magnitude of the electron's ... 
Math, Ms. Sue Help asap plss
Can the numbers 24, 32, and 40 be the lengths of three sides of a triangle? Why or why not My answer: Yes it can. Because the 3 lengths satisfy the triangle inequality theorem. The triangle inequality theorem states that the third side of a triangle must be greater than the ... 
trigmath
4. A carpenter wants to be sure that the corner of a building is square and measures 6.0 ft and 8.0 ft along the sides. How long should the diagonal be? A. 12 ft B. 10 ft C. 11 ft D. 14 ft 5. A wheel 5.00 ft in diameter rolls up a 15.0° incline. How far above the base of the ... 
Chemistry
Hi Can anyone help me determine the valency of selenium in hydrogen selenide... how do you work this out ??? Thank you .. Freddo .. H2Se is the formula for hydrogen selenide. The valence of H is +1, there are two of them for a total charge of +2. For the compound to be zero, ... 
Physics
A place kicker must kick a football from a point 25.5 m from the goal, and must clear a crossbar that is 3 m off the ground. When kicked the ball leaves the ground with a speed of 21.9 m/s at an angle of 54o to the horizontal. By how much does the ball clear the crossbar? 
commercial
For an assignment, I have to make a commercial on: 1. can be made up 2. must make the consumer want to buy it but is not being sold 3. must have a song jingle 4.nonusual promoted as usual I want to use wood but it is heavy, so I need help on an object to use. 
MATH ANALYSIS
How do i do this? According to Kepler's Laws, planets have elliptical orbits, with the sun at one of the foci. The farthest Pluto gets from the sun is 7.4 billion kilometers. The closest it gets to the sun is 4.4 billion kilometers. Find the equation of the orbit of Pluto. 
Physics
An object of mass m orbits a star with mass M , where M >> m . In general the bound or bits are elliptical, which means the kinetic energy of the object T and the gravitational potential energy U may vary. For bound orbits, the total energy E is negative. If the orbit is... 
geography
what do you see on the surface of the earth? 
earth
whats limestone used for? 
earth
How does time affect crystals? 
space
how many planets are smaller than earth 
project
save the earth with picture 
9th grade
how earth rotates? 
earth
WHEN DID PRIMORDIAL OCEANS FORM? 
science
What is the force of gravity on earth? 
science
explain why earth has a moon 
science
will earth get smaller in the future?if does why? 
science
When is the Earth farthest from the sun? 
science
What do earth`s plates float on? 
geometry
how do i find the radius of the earth 
algebra
7=T/7 How on earth would I solve this? 
Earth science
What is a relief map? 
science
where on earth is silver found? Thanks! 
science
how does the miners jobs help the earth 
Physics
What's earth's rotation period? 
Africa
What is a deep trench in the earth 
Science
How does Earth have seasons? 
earth
what is the chemical formula of chock? 
science
where does the earth loose energy to ?? 
earth
Explain the Nitrogen Cycle 
earth
how are dunes and canyons related 
earth
a suggestd answer to a question is a what 
earth science
A heterogeneous mixture is a 
Science
How is Earth like a system? 
Science
How is earth like a system? 
earth
What causes sedimentation in the ocean? 
Science
What is the lowest atmosphere on earth? 
Science
Why the earth rotate each 24 hours? 
Kumar
What is the life of earth ? explain and why? 
physics
what is gravitational field of the earth? 
Geography
The study of the earth and its features 
Sciences
Will al earth’s resources last forever? 
Stats
If there are only two possible outcomes to an experiment then... A.) the two corresponding probabilities must each be.50. B.) the two corresponding probabilities could be any numbers between 0 and 1, but must add up to 1. C.) the two corresponding probabilities could each be ... 
biology: the study of life
2. what is meant by the statement "living things do not exist in isolation"? TRUE/FALSE 3.people study biology only if they are planning to become biologists. 4. by studying biology you can better appreciate the great diversity of species on earth and the way each species fits... 
PHYSICS
Consider a one layer atmosphere for the planet Venus. 19% of incoming solar radiation is absorbed by the atmosphere. 99% of the outgoing radiation is absorbed by the atmosphere. The incoming radiation, E, as measured by satellite is 615 Wm2. 1) Derive two equations, one for ... 
Statistics
I'm confused about significance tests. I've tried to look up what it means for the p to be less than the alpha but none of the explanations made sense. I understand that the alpha is the probability of wrongly rejecting the null hypothesis but I'm not sure about the t and p ... 
help...urgent..calculus
Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be p=2800.4x. It also determine that the total cost of producing x smartphones is given by c(x)=5000+0.6x^2 . a. Find the total revenue, R(x). b. Find the ... 
HADS
Find the acceleration of the following reference frames i)when a reference frame fixed to the surface of the Earth at latitude 37 degree.ii)A reference frame with origin at the center of Earth with one axis always pointing toward the Sun. iii)A reference frame with origin at ... 
physics
A placemaker must kick a football from a point 36 m (about 39yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a velocity of 20.0 m/s at an angle 53 degrees to the horizontal. By how much does the ball ... 
physics
A placemaker must kick a football from a point 36 m (about 39yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a velocity of 20.0 m/s at an angle 53 degrees to the horizontal. By how much does the ball ... 
Physics
A boat must cross a 260mwide river and arrive at a point 110 upstream from where it starts. To do so, the pilot must head the boat at a 45 degree upstream angle. THe current has speed 2.3 m/s. a) What is the speed of the boat in still water? b) How much time does the journey... 
Math
an industry representative claims that 30 percent of all satellite dish owners subscribe to at least one premium movie channels. in an attempt to justify this claim, the representarive's claim is true, and suppose that a sample of six dish owners is randomly selected. asume ... 
physics
What two facts did Newton need to be able to calculate the acceleration of the Moon? A) the distance to the Moon and the diameter of the Moon B) the time it takes the Moon to make one revolution and the distance from the Earth to the sun C) the diameter of the Moon and the ... 
physics
What two facts did Newton need to be able to calculate the acceleration of the Moon? 1) the distance to the Moon and the diameter of the Moon. 2)the time it takes the Moon to make one revolution and the distance from the Earth to the sun. 3)the diameter of the Moon and the ... 
physics
What two facts did Newton need to be able to calculate the acceleration of the Moon? 1) the distance to the Moon and the diameter of the Moon. 2) the time it takes the Moon to make one revolution and the distance from the Earth to the sun. 3) the diameter of the Moon and the ... 
English
1. The earth moves around the sun. 2. The earth moves round the sun. (Which one is grammatical? Are both OK? Which one is commonly used?) 3. When does the movie come out in DVD? 4. When will the movie come out in DVD? (Which one is correct?) 5. I'm not sure if she calls me ... 
English
Writing Skills: A Research Project, you are asked to compose an essay responding to ONE of the prompts offered. At its base, this is a personal essay, but you must incorporate research that will support your views and opinions. The core of this essay must be based solely on ... 
Alebra
Kathy works at an optical store selling eyeglasses. Each week she earns $180 plus a 2% commission of her total sales for the week. Next week she wants to earn at least $350. 1. Write an inequality that represents the dollar amount of eyeglasses kathy must sell to earn at least... 
Math
Hello ma’am sir.. I have a problem in my assignment.. I‘m now a college student…a first year student…this is my question..please help me.. I really need it now… 1. The diameter of the earth is 7920 miles, and that of the moon is 2160 miles. Compare their volumes. 2. ... 
Biology
Blonde hair (bb) is a recessive trait and brown hair (Bb) is dominant. If both parents have brown hair, what must be true if one of their children have blonde hair? A. Both parents must be hybrid with regard to hair color (Bb) B. Both parents have two brown hair genes (BB) C. ... 
help math
Problem #1 what values for x must be excluded in the following fraction? (x+5)/(1) my answer i think its none Problem #2 what value for x must be excluded in the following fraction? (x3)/(4x5)(x+1) this one i do not know x can not equal 5/4 or 1. Each of these would make ... 
math
A farmer plants seeds in a field that is 125 meters long by 75 meters wide.The seeds must receive 1 liter of water per square meter every day. How many liters must the farmer apply to the field everyday? 
math
A farmer plants seeds in a field that is 125 meters long by 75 meters wide.The seeds must receive 1 liter of water per square meter every day. How many liters must the farmer apply to the field everyday? 
physics
A football kicker lines up to kick a game winning kick. The goalpost is 30m away and the ball must clear the 3.3m high crossbar. If the kick leaves his foot at an angle of 35 degrees, how fast must the kick be to clear the bar? 
Math Problem (please help)
A small software company invests $30,000 to produce a software package that will sell for $64.95. Each unit can be produced for $42.25. How many units must be sold to break even? How many units must be sold to make a profit of $100,000? 
calculus
. Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be It also determine that the total cost of producing x smartphones is given by a. Find the total revenue, R(x). b. Find the total profit, P(x). c. How many... 
Biology
The creation of sex cells occurs in meiosis. Explain what happens when a new organism is created and life begins. Answer: meiosis is a process of cell division that produces sex cells, or gametes. Gametes are reproductive cells such as the sperm and egg. As gametes are ... 
science
Where does energy come from? Energy can come from the complete destruction of matter (as in nuclear reactions), or the rearrangement of electrons or other charged particles inside matter (as in chemical reactions) or from electromagetic fields (as in light and heat radiation... 
physics
Earthquakes are essentially sound waves—called seismic waves—traveling through the earth. Because the earth is solid, it can support both longitudinal and transverse seismic waves. The speed of longitudinal waves, called P waves, is 7800m/s . Transverse waves, called S ... 
Math
A bottle contains some milk. Three glasses of capacity 4l,6l,and 8l are to be filled an exact number of times from it. What must be the least capacity of the bottle. Please mr sue give me what must be the least capacity of the bottle 
chemistry
An automobile maker has an order for 7,500 new cars to be delivered in one week. Each car must be fitted with a new hood ornament that requires 1 hour and 15 minutes to install. Assuming the factory operates on a standard workweek shift (8 hours per day for 5 days), how many ... 
Science
In humans, having dimples is a dominant trat. In order for a child to have dimples A. at least one parent must not have dimples and pass on the recessive allele. B. both parents must not have dimples and pass on the recessive allele. C. both parents must have dimples and pass ... 
English
17a. Each of the applicants must submit his or her completed form to the interviewer. 17b. Each of the applicants must submit their completed forms to the interviewer. I chose A. is that right? please explain. 
Physics
A spring with a force constant of 4.5×104 N/m is initially at its equilibrium length. How much work must you do to stretch the spring 0.070 m? How much work must you do to compress it 0.070 m? 
Physics
a. An object has a mass of 33 kg. The acceleration of gravity is 9.8 m/ s^2. What is its weight on the earth? Answer in units of N. 2. What is its mass on the moon where the force of gravity is 1/6 that of the earth? Answer in units of kg. 3. What is the weight of that object ... 
Maths A
For this question, use the copy of the Random Number table provided at the end of this AAT. (This table was copied from page 111 in the Textbook.) Select 48 values according to the following criteria. o The first thirty (30) numbers must lie in the range from 48 to 58 ... 
Physics
Halley comet which passes around the sun every 76 years has an elliptical orbit. when closest to the sun it is at a distance of 8.823 x 10^10 m and moves with a speed of 54.6 km/s. The greatest distance between hally's comet and the sun ( aphelion ) is 6.152 x 10^12 m. ... 
math,correction
can someone correct this for me parts AE and if i am wrong can you help me....please How many 7digit telephone numbers are possible if the first digit cannot be zero and..... a) only odd digits may be used? my answer: 8125 b) the telephone number must be multiple of 10(that ...