Monday
July 6, 2015

Homework Help: Science: Earth

Recent Homework Questions About Earth

science
Find the angular and linear velocities of a man due to the rotation of the earth if he standing A) at the equator B) in Muscat(latitude23.5) C) in oslo(latitude60) Take tha radius of the earth as 6380km
Tuesday, April 15, 2014 by zb

Science -Check Answers- Please
1.) How did planetesmals form planets? A. They broke apart into smaller chunks. B. They collided and stuck together. ******** C. They cooled and pulled ice together. D. They began to rotate. 3. Which of the following statements about features on the sun is true? A. Prominences...
Monday, April 14, 2014 by Mike

Physics
Gravity on Mars is 1/3 of that on earth. If Mars atmosphere is only 2 km thick, what is atmospheric pressure on Mars?
Monday, April 14, 2014 by Sandra

Astrophysics
The Earth formed at a redshift of z∼0.53. That means that when our world was young, the universe was quite a bit smaller than it is today. The nearest galaxies to our own are around 10 kpc (kilo-parsecs) in size, lie at a distance of around 1 Mpc from us (Mega-parsecs), ...
Saturday, April 12, 2014 by Anonymous

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...
Thursday, April 10, 2014 by Kimmie

Math
The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 42 years
Thursday, April 10, 2014 by Lataivia

Memorable Letter Evaluation (Writeacher)
Write a letter to your parents about a memorable moment in your life, using imagery to capture your experience. I origionally sumbitted a different letter, but Bob insisted that I should write more about my feelings toward my experience than using imagery. "Dear Mom and ...
Wednesday, April 9, 2014 by Victoria

physics
A baseball pitcher throws a baseball horizontally at a linear speed of 41.3 m/s. Before being caught, the baseball travels a horizontal distance of 15.4 m and rotates through an angle of 52.7 rad. The baseball has a radius of 3.74 cm and is rotating about an axis as it travels...
Wednesday, April 9, 2014 by Anonymous

college alg
The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to Earth if it has an initial velocity of 184 ft/s.
Tuesday, April 8, 2014 by kmill

college alg.
The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to Earth if it has an initial velocity of 184 ft/s. ____________ s
Tuesday, April 8, 2014 by Kmil

Single Room, Earth View by Sally Ride--Help!
This regards the story "Single Room, Earth View" by Sally Ride. Choose one of the following quotations; then in a few paragraphs, discuss how Sally Ride's observations support or refute the quotation. Quotations: 1. "Observation is a passive science, ...
Monday, April 7, 2014 by Victoria

History
How did we get water on earth?
Monday, April 7, 2014 by Joy

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...
Monday, April 7, 2014 by Kate

Physic II
A 992.0-g iron meteor impacts the earth at a speed of 1447.0 m/s. If its energy is entirely converted to heat of the meteorite, what will the resultant temperature rise be? (The specific heat for iron is 113 cal/kg.C)
Monday, April 7, 2014 by Guliner

Science - Check my answers please (6th grade)
When are tides in Earths oceans the highest? 1. during the moon's waning gibbous phase 2. during the moon's waxing gibbous phase 3. when the moon is at a right angle to the sun 4. When the sun, Earth, and moon are in a line.
Monday, April 7, 2014 by Helena

Science - Check my answers please (6th grade)
earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity Is it c) both inertia and gravity?
Monday, April 7, 2014 by Helena

physics plz help
I need help in calculating work. following quantites are given. * G: 6.67E-11 *Mass of earth:5.98E24 *mass of satelightt:80kg *x(initial) center of the earth-7E6 m *x(final) center of the earth 12E6 m How do I make integral equation I need use 20 interval or calculate in excel...
Monday, April 7, 2014 by jenny

physics/calculus
I need help in calculating work. following quantites are given. * G: 6.67E-11 *Mass of earth:5.98E24 *mass of satelightt:80kg *x(initial) center of the earth-7E6 m *x(final) center of the earth 12E6 m How do I make integral equation I need use 20 interval.
Monday, April 7, 2014 by jenny

6th Grade Science - Help
Which of Earth's spheres has the most mass? 1. atmosphere 2. hydrosphere 3. geosphere 4. biosphere Is it Biosphere?
Saturday, April 5, 2014 by Helena

Math, Geomertry
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 solar eclipse is not...
Friday, April 4, 2014 by Luis

Social Studies
Read the speech below. It is a fictitious political speech by Peter, a candidate for the upcoming national election. Then answer the following questions: List all of the arguments in the speech List all of the non-arguments in the speech List all of the factual contents in the...
Friday, April 4, 2014 by Mary

Science - Check my answers
1. Which of the following statements best defines tides? when waves get bigger because of an approaching storm the rise and fall of ocean water that occurs about every 12.5 hours **** the rise of ocean water that occurs 12 times a day a giant wave that can be extremely ...
Thursday, April 3, 2014 by Helena

Physics
A satellite is given a boost of 540 MJ of energy to move it from its initial orbit at an altitude of 150 km to a higher altitude orbit. If the satellite has a mass of 1.16 ✕ 10^3 kg, what is the new altitude it reaches? Take the mass of the Earth to be 5.97 x 10^24 kg ...
Wednesday, April 2, 2014 by Dan

Physics-Gravitational Potential Energy
A satellite is given a boost of 540 MJ of energy to move it from its initial orbit at an altitude of 150 km to a higher altitude orbit. If the satellite has a mass of 1.16 ✕ 103 kg, what is the new altitude it reaches? Take the mass of the Earth to be 5.97 x 10^24 kg ...
Tuesday, April 1, 2014 by Dan

Math
4. Columbus had a hard time convincing anyone to undertake the expense of financing a voyage to an unknown place. Based on the information available from other sailors and partly on his own ideas, Columbus underestimated the circumference of the Earth by twenty-one percent. ...
Tuesday, April 1, 2014 by Sue

Physics please help ASAP!
If you know the mass of a star and a planet’s radius and speed at perihelion (closest approach to the star), then using conservation of energy and angular momentum you can solve for the radius and speed of that planet at aphelion (farthest point from the star). Encke’...
Monday, March 31, 2014 by Bobby

college physics 2
A healthy astronaut's heart rate is 60 beats/min. Flight doctors on Earth can monitor an astronaut's vital signs remotely while in flight. How fast would an astronaut be flying away from Earth if the doctor measured her having a heart rate of 28 beats/min?
Monday, March 31, 2014 by Anonymous

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?
Monday, March 31, 2014 by Hannah

science(check answers)
1.---please help 2.C 3.D 4.C 5.A 6.C 7.---please help 1.An advantage of using an electromagnet,shown on the crane in the image below,instead of a regular magnet to move cars in a junkyard is that an electromagnet can easily be turnd on and off. A.true B.false 2.Imagine two ...
Monday, March 31, 2014 by matt

Math
4. Columbus had a hard time convincing anyone to undertake the expense of financing a voyage to an unknown place. Based on the information available from other sailors and partly on his own ideas, Columbus underestimated the circumference of the Earth by twenty-one percent. ...
Monday, March 31, 2014 by Sue

Global Studies
Although the Amazon Basin receives more than 80 inches of rain per year, South America also has the driest place on Earth, know as a. Death valley b. Gobi desert c. Atacama desert*** d. the Caribbean
Thursday, March 27, 2014 by Josh

physic
A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to the object. Determine the force of friction. ...
Thursday, March 27, 2014 by pam

physic
A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to the object. Determine the force of friction. ...
Thursday, March 27, 2014 by pam

Science
Without newtons second law would there be gravity on earth??????? Help!!! And also how are newtons second and third laws of motion important to your everyday life?
Wednesday, March 26, 2014 by Kahoho

Science
If an astronaut could hop 40 cm high on Jupiter, how high could he or she jump on earth? On the moon? Please help me fast I have a bunch of questions over this and I have no idea what this even means
Wednesday, March 26, 2014 by Kelsey

global warming science
1a (5 points possible) A schematic of a two layer model of the Earth-atmosphere energy balance is shown in the image below. The atmosphere is assumed to be transparent to solar radiation, and the total solar radiation absorbed by the surface is written in terms of the ...
Wednesday, March 26, 2014 by JuanPro

Science
The force of gravity on Jupiter is much stronger than the force of gravity on Earth. Which of the following explains why this is true?
Tuesday, March 25, 2014 by norna

Physics
In Stranger in a Strange Land, Robert Heinlein claims that travelers to Mars spent 258 days on the journey out, the same for return, \plus 455 days waiting at Mars while the planets crawled back into positions for the return orbit." Show that travelers would have to wait ...
Tuesday, March 25, 2014 by anonymous

Water cycle question
The planet is covered by 97% ocean water. What would the global water cycle look like if the earth were covered by 50% ocean water?
Monday, March 24, 2014 by Anonymous

Physics( Explain and choose right answer)
A ball on the end of a rope is moving in a vertical circle near the surface of the earth. Point A F T is at the top of the circle; C is at the bottom. Points B and D are exactly halfway between A and C. Which one of the following statements concerning the tension in the rope ...
Monday, March 24, 2014 by Dan

physics
Assuming the Earth's magnetic field averages about 0.50×10−4 T near Earth's surface, estimate the total energy stored in this field in the first 15km above Earth's surface. The radius of Earth is 6380 km.
Sunday, March 23, 2014 by Jennifer

physics
Earth is approximately a sphere of radius 6.37 × 106 m. What are (a) its circumference, (b) its surface area, and (c) its volume? please help
Sunday, March 23, 2014 by john

science
. An advantage of using an electromagnet, shown on the crane in the image below, instead of a regular magnet to move cars in a junkyard is that an electromagnet can easily be turned on and off. A toy crane with an electromagnet lifting a toy car from a pile of cars (1 point) ...
Saturday, March 22, 2014 by james

science
an object being pulled to earth by gravity will have the force of air pushing back opposite directions
Saturday, March 22, 2014 by james

Science
If the density of a steel hammer 7gm/cm on earth what would the density be on a spaceship?
Thursday, March 20, 2014 by Mark

Physics
In a lightning bolt, a large amount of charge flows during a time of 2.2 10-3 s. Assume that the bolt can be treated as a long, straight line of current. At a perpendicular distance of 28 m from the bolt, a magnetic field of 7.3 10-5 T is measured. How much charge has flowed ...
Thursday, March 20, 2014 by Anonymous

Science
How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?
Thursday, March 20, 2014 by Mark

Physics!
Consider someone in a rotating space habitat. The outward force felt by the person A.has no reaction counterpart B.is an interaction with Earth C.is a form of gravity D.is real in the traditional sense
Wednesday, March 19, 2014 by Anonymous

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?
Wednesday, March 19, 2014 by kimmy plus

Science
The total amount of ice in the Greenland ice sheet is estimated to be 2.85 million cubic km. Assume the Earth's surface is 70% covered by ocean, and that the Earth's radius is 6300 km. How many meters would sea level rise if the entire Greenland ice sheet were to melt...
Wednesday, March 19, 2014 by Bane Havoc

Science
1. Where is the Earth's equator located today? Describe the climatic conditions. 2. Compare and contrast the climatic conditions existed during this time today. 3. Answer: What types of fossils would you expect to find here? Explain why based on the animals' ...
Tuesday, March 18, 2014 by Layne Cronin

Alegbra
The distance from the Earth to the sun is 93,000,000 miles. Write this number in scientific notation.
Tuesday, March 18, 2014 by MikeW

6th grade Lang
Can you recheck these? I don't understand. 10. I enjoy it because the temperature is pleasant, and everything is green and pretty. ans: cd (compound) 11. I also love to hear the birds singing in the trees and to watch them building their nests. ans: SS (simple) 13. In the ...
Tuesday, March 18, 2014 by Alexis

Algebra URGENT! Conic sections
A spacecraft is in a circular orbit 150 kilometers above Earth. Once it attains the velocity needed to escape the Earth's gravity, the spacecraft will follow a parabolic path with the center of Earth as focus. Suppose the spacecraft reaches escape velocity above the North ...
Tuesday, March 18, 2014 by hanna

Environmental Concern Speech
Can someone give their opinion about the beginning of my speech? "A few short days ago, my mother and I left our house to journey to the local grocery store. While my mother veered onto the highway, I quickly glanced over at the side of the road, only for my attention to ...
Monday, March 17, 2014 by Anonymous

6th grade - Lang Arts
Can you check the following? Find the verb phrase 1. Will you buy me a drink? ans: will buy 2. Sam is not going to the dance. ans: is going 3. Al should have mowed the lawn today. ans: should have mowed 4. Theresa will be playing her clarinet at the concert tonight. ans: will ...
Monday, March 17, 2014 by Alexis

science
how do you explain the millions of different substances found on earth
Sunday, March 16, 2014 by darla

Astronomy
Light travels at a constant speed of 3.0 x 105km/s. The distance between the Sun and the Earth is about 1.5 x 108km. Use the distance = speed x time formula (d = v t) to calculate the time it takes light to travel from the Sun to the Earth. Show your work. Express your result ...
Saturday, March 15, 2014 by Lilly

Astronomy
Light travels at a constant speed of 3.0 x 105km/s. The distance between the Sun and the Earth is about 1.5 x 108km. Use the distance = speed x time formula (d = v t) to calculate the time it takes light to travel from the Sun to the Earth. Show your work. Express your result ...
Saturday, March 15, 2014 by Lilly

Science
1. Which of the following can be expected to occur as climate change continues on Earth? (1 point) decreased melting of sea ice decreased migration of pests and pathogens increased freshwater sources increased coastal flooding* 2. Which piece of children’s’ ...
Friday, March 14, 2014 by Anonymous

physics
Calculate the force needed to accelerate a 1 kg ball by 3 m/s: a. in space along way from the earth. b. on the ground in a direction horizontal to the ground. c. on the earth vertically upward.
Friday, March 14, 2014 by Swastika

physics
What is the gravitational field strength at a height h above the surface of the Earth? R is the radius of the earth gR2(R+h)2 gR(R+h) g(R−h)R g(R−h)2R2 2 The instrument used for experimental determination of the value of the universal gravitational constant G is ...
Friday, March 14, 2014 by A

Earth science
The greenhouse effect is a result of A. consumption of fruits and vegetables that produce a biofuel. B. absorption and radiation of energy in the hydrosphere. C. absorption and radiation of energy in the atmosphere. D. consumption and radiation of energy in the atmosphere. D?
Thursday, March 13, 2014 by Heather

Earth science
1. Which of the following is not a natural cause of climatic change? A. Earth's tilt B. Solar activity C. Human activity D. Volcanic activity I think it is C
Thursday, March 13, 2014 by Heather

Science question, only 1
Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is degrading slowly with time. Only water not present in oceans is available for living things to use. Once it ends up as groundwater, water...
Thursday, March 13, 2014 by Princess Anna

Science check my answers
Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is degrading ...
Wednesday, March 12, 2014 by Princess Anna

Help
4. Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain 5. Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is ...
Wednesday, March 12, 2014 by anonymous

Science :(
4. Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain 5. Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is ...
Wednesday, March 12, 2014 by anonymous

Alegbra
The distance from the Earth to the sun is 93,000,000 miles? Write this number in scientific notation. A scientist measures a speck of sand as having a diameter of 0.00000034? Write this number in scientific notation.
Wednesday, March 12, 2014 by WillyB

Science 6th grade Earth's day and night ANSWERS
1. how does earth's rotation cause day and night? (1pt) As the earth rotates toward the east the sun appears to rise in the east and set in the west. 2.Roughly how many times does the earth rotate during each complete revolution? (1pt) 365. 3. Saturn's day is roughly ...
Wednesday, March 12, 2014 by Queen elsa

Science
How many ice ages do scientist estimate have occurred during the last billion years? 3 5************************************* 6 7 How often do scientists say that recent cycles of advancing and retreating ice sheets occur? approximately every 100,000 years******* approximately...
Wednesday, March 12, 2014 by Cassie

Science
Which of the following is NOT a common landform caused by the passing of a glacier? Drumlins Esker Moraine Steppe ******************** There are sometimes flowing rivers within a glacier. True *************************** False Glaciers form and grow when the snowfall from one ...
Wednesday, March 12, 2014 by Cassie

PEOPLE, SCIENCE, AND THE ENVIRONMENT
. If all life ceased on Earth, how quickly would the atmosphere become like that of Venus and Mars? Explain.
Wednesday, March 12, 2014 by theresa

English 9 - HELP!
1. The small boat was scudding into the open sea with a full sail. (1 point) getting stuck sinking deeply moving swiftly rocking harshly 2. As an outdoor enthusiast, Kristina abhorred the fact that people left debris along the hiking trail. (1 point) recently discovered ...
Tuesday, March 11, 2014 by Abby

science(check answers)
1. A 2. C 3. A 4. D 1. Coal, oil, and natural gas are inexpensive sources of fuel which do not cause pollution when used. A. true B. false 2. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a ...
Tuesday, March 11, 2014 by matt

physics
Find the speed of a satellite in a circular orbit around the earth with a radius 2.69 times the mean radius of the earth; Radius Earth= 6.37E+3km; Mass Earth= 5.98E+24kg.
Tuesday, March 11, 2014 by Marie

physics
If Earth's mass were suddenly and magically reduced to half its present value, the Sun's gravitational force on Earth would A. be reduced by a factor of 2. B. be reduced by a factor of 4. C. increase by a factor of 2. D. remain the same. I was told it remained the same...
Tuesday, March 11, 2014 by anonymous

physics
A 600-kg geosynchronous satellite has an orbital radius of 6.6 Earth radii. What gravitational force does Earth exert on the satellite? A. 13.8 N B. 90.9 N C. 138 N D. 909 N
Tuesday, March 11, 2014 by anonymous

Science :(
Which of the following describes the correct sequence of events during the water cycle? precipitation → condensation → evaporation → runoff condensation → precipitation → runoff → evaporation runoff → condensation → evaporation...
Tuesday, March 11, 2014 by anonymous

English
I'm writing a personal essay for an internship. Is everything in this essay clarified? Where can I expand? I don't know about you but I like living. And in order for me (and those who proceed me) to live a nice, long and happy life, we have to do something about the ...
Tuesday, March 11, 2014 by Tierra

physics
astronomical observations of our milky way galaxy indicate that it has a mass about 8.0 *10^13 times the mass of our sun. a star orbiting on the galaxy edge is about 6.0*10^4 light years a way from the galactic center what is the orbital period of that star in earth year
Sunday, March 9, 2014 by Mohanad

science
How does ozone gas to int get into the earth?
Sunday, March 9, 2014 by Kathleen

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 ...
Sunday, March 9, 2014 by Relativity quest. help pls

MATH
The height h (in meters) of a cannonball t seconds after it is fired into the air is given by h=-4t^2+16t+9. a) What is the initial height of the cannonball? What feature does this correspond to on the graph? b) Find the height of the cannonball after 1 second. c) What is the ...
Saturday, March 8, 2014 by Josh

science
why is gravity on earth and not on the moon i need something to help me start it off
Friday, March 7, 2014 by tessa

physics
You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 0.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun)
Friday, March 7, 2014 by jennifer

Environmental Science
On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?
Thursday, March 6, 2014 by Kayla

chemistryyy
The escape velocity of planet earth is 11.2 km/s. At what temperature would helium atoms be able to escape the earth's gravitational pull? (Note: you're calculating the average speed here, which means roughly 50% of the atoms would escape at any given time)
Thursday, March 6, 2014 by tricia

Reading skills
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from ...
Thursday, March 6, 2014 by Tazkiyah

trig
city a is 300 miles directly north of city b assuming the earth to be a sphere of radius 4000 miles determine the difference in latitude of the two cities make answers accurate to the nearest second
Wednesday, March 5, 2014 by Anonymous

Physics
A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?
Wednesday, March 5, 2014 by jamie

Earth, Space and Science
8. A geologist is studying a section of sedimentary rock layers that have been newly exposed by a landslide. Based on what principle, the geologist would assume that the layers increased in age as they looked at them from top to bottom. A. unitarianism B. Principle of ...
Wednesday, March 5, 2014 by Cassie

physics
Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 418 km above the earth’s surface, while that for satellite B is at a height of 731 km. Find the orbital speed for (a) satellite A and (b) satellite B.
Wednesday, March 5, 2014 by Anonymous

physics 1
A satellite is in a circular orbit about the earth (ME = 5.98 x 1024 kg). The period of the satellite is 1.77 x 104 s. What is the speed at which the satellite travels?
Wednesday, March 5, 2014 by Anonymous

Math help
The land on Earth’s surface is represented by the seven continents. Europe has 77% of the dry land while Africa has 20%. North America has 4/25 and Antarctica has 1/10 of the dry land. What fractional amount of the dry land is contained within the three remaining ...
Tuesday, March 4, 2014 by Anonymous

Math
The land on Earth’s surface is represented by the seven continents. Europe has 77% of the dry land while Africa has 20%. North America has 4/25 and Antarctica has 1/10 of the dry land. What fractional amount of the dry land is contained within the three remaining ...
Tuesday, March 4, 2014 by Anonymous

Science
1. What would happen to an object if the force of gravity on Earth was decreased by half? (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2. Which of the following represents a heterogeneous mixture? (1 ...
Tuesday, March 4, 2014 by Daniel Brown

Science
1.   What would happen to an object if the force of gravity on Earth was decreased by half?  (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2.   Which of the following ...
Tuesday, March 4, 2014 by Daniel Brown

science
What universal force is primarily responsible for keeping satellite in orbit around earth? Answers are electromagnetic force, strong nuclear force, gravitational force, weak nuclear force. Thank you
Monday, March 3, 2014 by snow

Physics
A 6 kg brick is falling at a rate of 48.9 m/s toward the earth at a current height of 14 m. What is the total mechanical energy of the brick? (total mechanical energy= Eg+Ek+Eel) What is the answer in Joules?
Monday, March 3, 2014 by Help me please

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Homework Help: Science

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