Earth

Science
Please help me with these questions from the Science 6: Forces and Motions Unit Test. My answer-****** 1. Which of the following best describes the movement of an object at rest if no outside forces act on it? (1 point) It will move due to inertia. Gravity will eventually ...

Science
Earth's history unit test under which of the following conditions would a fossum look likely form

Science
Earth's energy sources include both renewable and nonrenewable resources. Name at least three sources of energy that could be used in your house. Then describe the ideal energy source for generating most of your home's electricity, and explain why you chose that source.

Geography
What will happen when we move vertically upwards the earth?

Geography
What will happen when we move vertically upwards the earth?

Physics
The moon rotates about its axis every 27.3 days and orbits the earth every 27.3 days. A) what is the moment of inertia with respect to its axis? B) What is the moment of inertia with respect to the earth? C) What is the moons angular momentum with respect to its axis? D) WHat ...

science
A coastline on Earth experienced a high tide at 6 a.m. At what approximate time will the next low tide occur, and why? 6 p.m., because the coastline will turn 90 degrees from the moon 6 p.m., because the coastline will turn 180 degrees from the moon 12 noon, because the ...

Science
How do clouds form? (No links, please, just a few facts, I've done half of this question) All weather occurs in Earth's _______. thermosphere troposphere*** stratosphere exosphere Because of their shape when seen from the ground, tornadoes are sometimes called _____. V clouds ...

science
Mass of a body is 25 kg. What is its weight in Newton on earth? The body is carried to a planet whose mass is two times the mass of earth and radius is half that of earth. What will be the mass and weight of the body on the planet? (Take the value of g on earth as 10 m s–2)

Physics
A car travels over a hill at a constant speed as shown in the diagram below. The car’s speed is 12.1 m/s, its mass is 1621 kg, the radius of the hill is 29 meters, and the force of friction is 201.6 N. The gravitational field of the earth is 10N/Kg. Calculate the Force ...

english
What are the rhetorical components of the allegory Animal Farm Answer: The rhetorical components of this allegory consist of ethos, which deals with beliefs, morals, and credibility. Another rhetorical components deals with logos which can be seen in the story using objects. ...

english
what are the rhetorical components of the allegory in Animal Farm? Answer:a. The rhetorical components of this allegory consist of ethos, which deals with beliefs, morals, and credibility. Another rhetorical components deals with logos which can be seen in the story using ...

earth science
An element's atomic number is 52. How many electrons would an atom of this element have?

earth science
If the mass of a material is 76 grams and the volume of the material is 23 cm3, what would the density of the material be?

ELA
Mounds of History Elizabeth Kibler 1Looking at the Etowah Indian Mounds Historic Site in Georgia is like taking a trip into history. Huge, green mounds sprout up from the grassy earth. The impressive mounds give visitors a feeling of mystery. The Etowah Indian Mounds Historic ...

ELA
Volcano Forms New Pacific Island Angela Antrim 1NORTHERN PACIFIC OCEAN—Scientists have discovered a new, currently unnamed island in the northern Pacific Ocean. The small island is located in an isolated area between Hawaii and the Marshall Islands. Scientists believe that ...

earth science
An atom of element A has 75 protons. What would the element's atomic number be?

Physics
A communications satellite is moving at a constant speed in a circular orbit around Earth. At any given instant in time, what is the resultant force on the satellite? A. zero B. equal to the gravitational force on the satellite C. equal to the vector sum of the gravitational ...

science
which of the the following can be expected to occur as a climate change continues on earth need all the answers plz asap like now!!

Geography
Why is the atmosphere very dense near the surface of the earth?

Geography
What happens when we move vertically upwards from the earth?

Physics
When the Philae probe landed on Comet 67P, it took approximately 28 minutes for a radio signal to be received at the European Space Operations Centre. Determine the distance (in metres) from the Philae probe to Earth.

sience
Which of the following can be expected to occur as climate change continues on Earth? HELPPPPPPPPPPP ASAP!!!

math;) Law of Cosines
Two satellites are in Earth's orbit and are 424 km apart. If an observer is 658 km away from satellite A and 471 km away from satellite B, what angle must the observer turn his telescope to change his view from one satellite to another? a. 40.0 degrees b. 45.5 degrees c. 50.0 ...

science
what is needed need to test the albedo of ice affect Earth’s climate

Science
Your Science Club is tutoring some younger students in astronomy. You hear one student describe how people on Earth can never see “the dark side of the Moon.” You know that is an inaccurate statement. What reasons would you give to explain to the student that “far side ...

Physics
Calculate the time it takes for a gamma ray to travel from the Sun to the Earth Distance (mean) Earth to Sun=1.5 e11 m

science
Meteorites can make large depressions on Earth’s surface when they make impact. Why are so few of these depressions visible on Earth’s surface? • Earth is constantly changing it’s topography due to volcanic activity, or processes such as weathering, erosion, and ...

Geography
What happens when we move vertically upwards from the earth?

Science
Insolation refers to the amount of solar energy that reaches a body, such as a planet. the amount of heat energy contained in a beam of sunlight. the imaginary line that runs around Earth's middle. the spherical shape of Earth I don't know this one. The Coriolis effect refers...

maths
In 2003, NASA launched the rover Spirit onto the surface of Mars to explore our planetary neighbor. Near the end of January 2010, Mars was 99.33 million km away from Earth. Assume the speed of communication is at the speed of light, which is 300,000,000 m/s. If a researcher on...

Math
A plane leaves an airport A (38.5N, 37.05W) and flies dues North to a point B on latitude 52N (a) Find the distance covered by the plane (b) The plane then flies due east to a point C, 2400km from B. Determine the position of C Take the value ∏ of as 22/7 and radius of ...

Math
The position of two towns X and Y are given to the nearest degree as X(45° N, 10° W) and Y (45 N°, 70° W). Find 70-10 =60 Find: (a) The distance between the two towns in (i) Kilometers ( take the radius of the earth as 6370) 60/360 *2*3.142*6370*cos(45) = 4717.47km (ii) ...

math
. The position of two towns X and Y are given to the nearest degree as X(45° N, 10° W) and Y (45 N°, 70° W). Find 70-10 =60 (a) The distance between the two towns in (i) Kilometers ( take the radius of the earth as 6370) 60/360 *2*3.142*6370*cos(45) = 4717.47km (ii) ...

Math
The Position of two A and B on the earth’s surface are (36°N, 49°E) and (36°N, 131°W ) respectively. (a) The difference in long between town A and town B (2 marks) (b)) Given that the radius of the earth is 6370, calculate the distance town A and town B. (c) Another town...

Algebra
In 2003, NASA launched the rover Spirit onto the surface of Mars to explore our planetary neighbor. Near the end of January 2010, Mars was 99.33 million km away from Earth. Assume the speed of communication is at the speed of light, which is 300,000,000 m/s. If a researcher on...

Physics HELP Plz
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball. The acceleration due to gravity on the moon is 1/6 of its value on the earth (gravity on moon -1.633m/s2). On earth, golf balls are driven at about 84 m/s with a loft angle of about 15º and have a ...

Science help
DESCRIBE some uses of satellites orbiting Earth. I need help! Will you help me?

science
How can volcanic eruptions change the surface of the earth? A. by lowering land levels several feet B. by creating new islands and land C. by creating large deposits of coal D. by decreasing the level of the ocean i think its B

math
the moon travels about 1.42 * 10^7 meters of its orbit in one twenty-four hour period. which of the following is the most reasonable estimate for the distance the moon travels around the earth in 27 days?

msth
the mass of earth is 5.97*10^24 kilograms the mass of the moon is 7.34 *^22 kilograms what is the combines mass of earth ad the moon. express your answer in scientific notation

Science
(just a quick science question, pls correct my answer if im wrong..) Which of the following statements is true A.) there is more water on earth now than there was millions of years ago **** B.) there is less water on earth now than there was millions of years ago C.) there is ...

Physics
Your friend doesn't believe you when you tell her that the acceleration due to gravity on earth is the same for both light and heavy objects. How could you convince her?

physics
Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 3.004km.

chemistry
What type of rock is made from molten material from inside the earth? (2 points) writing part Igneous Metamorphic Sedimentary Magma 7. How can we use rocks to determine how an area used to look in the past? (4 points) wrting part 8. Which of the following can be considered the...

Physics
Suppose a straight 1.50 mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 3.0×10−5 T . What current would the wire carry?

Social Studies
Monk's Mound, the largest structure at Cahokia Mounds was built entirely out of A. earth. B. mudbricks.* C. stone blocks. D. adobe.

science
How does radiation from the Sun affect Earth’s atmosphere?

physics
n automobile has a vertical radio antenna 1.40 m long. The automobile travels at 30.0 km/h on a horizontal road where Earth's magnetic field is 50.0 µT, directed toward the north and downward at an angle of 65.0° below the horizontal. (a) Specify the direction the automobile...

Earth science
If a sample contains 50g of carbon 14 and 50g of nitrogen 14 , how many lives has it undergone ?

Earth science
If a sample contains 50g of carbon 14 and 50g of nitrogen 14 , how many lives has it undergone ?

science
Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither ice nor wind 3. Earth ...

science
Which motion causes night and day on Earth? A. the Sun’s motion around its axis B. Earth’s motion around its axis*** C. Earth’s motion around the Sun D. the Moon’s motion around Earth I think the answer is B, but am I correct?

math
An object weighing 5 pounds on Earth will weigh 2 pounds on Mercury. The Brooklyn Bridge weighs 14,695 tons on Earth. What would it weigh on Mercury (in tons) ?

physics
What is the gravitational force on a 20Kg satellite circling the earth (Re = 6.4 x 10^6 m, Me = 6 x 10^24Kg) with a period of 5hr?

Physics
Assuming the earth to be a uniform sphere of radius 6400 km and density 5.5g/c.c. find the value of g on the surface where G=6.67×10

Environmental Science
Nuclear fission ____ atoms to create energy A. Heats B. Corrodes C. Splits D. Combines A machine that converts electrical energy into mechanical energy is called a _____ A. Generator B. Solar Panel C. Windmill D. Motor Nuclear power plants use the radioactive element _____ to ...

Math :(
Jupiter is 9.28 x 108 km from Earth when they are farthest apart. Mars is 410,000,000 km from Earth when they are farthest apart. a) How much farther away from Earth is Jupiter? b) When Jupiter is closest to Earth, it is only 629 million km away? What is the difference in ...

ELA (English)
"Miracles" Why, who makes much of a miracle? As to me I know of nothing else but miracles, Whether I walk the streets of Manhattan, Or dart my sight over the roofs of houses toward the sky, 5 Or wade with naked feet along the beach just in the edge of the water, Or stand under...

Physics
Obtain the rotational kinetic energy of the earth due its daily rotation on its axis. Assume the Earth to be a uniform sphere; take m = 5:98 x 10^(24) kg; r = 6:37 x10^6 m 1 point 9.8 x 10^(29) 2.56 x 10^(29) 8.85 x 10^(25) 1.00 x 10^(29)

Physics
Many satellites orbit the earth at about 1000km above the earth's surface. Geosynchronous satellites orbit a distance of 4.22*10^7 m from the center of the earth. How much more energy is required to launch a 500kg satellite into a geosynchronous orbit rather than launching ...

Physics
The solar radiation incident on the Earth has a power density of approximately 900W/m2. Find the rms value of the electric field. I know that Erms = Emax/squareroot(2) But how can I pass from W/m^2 to electric field?

physics
The illustration for this problem can be seen at screenshots(dot)firefox(dot)com/atwXACAA​9akaoAji/null The army is testing out a new prototype artillery cannon with an uncommonly high muzzle velocity of 1000 m/sec . The design bugs haven't been fully worked out yet, so ...

Science
The earth is in constant motion. It rotates and revolves. Which of the following is NOT TRUE of the Earth's motion? 2 points A Due to the revolution of the Earth, we experience seasons. B The Earth rotates on its axis once every 24 hours. This causes day and night. C The ...

physics
The illustration for this problem can be seen at screenshots(dot)firefox(dot)com/atwXACAA​9akaoAji/null The army is testing out a new prototype artillery cannon with an uncommonly high muzzle velocity of 1000 m/sec . The design bugs haven't been fully worked out yet, so ...

Math
Radio signals travel at a rate of 3x10^8 meters per second period how many seconds will it take for a radio signal to travel satellite to the surface of earth if the satellite is orbiting at a height of 4.2x10^7 meters? (Hint: Time is distance divided by rate.) A. 1.26 x 10^16...

science
find the acceleration due gravity on the surface of Neptune. given that mass of Neptune is 16.7 times that of the earth and the radius of Neptune is 3.89 times that of the earth (Re = 6380 km )

Science
Why is the gravitational potential energy of an object 1 meter above the moon's surface less than its potential energy 1 m above earth's surface is it c object's acceleration due to gravity is less on the moon

physics
The period of oscillation of a near-Earth satellite (neglecting atmospheric effects) is 84.3 min. What is the period of a near-Moon satellite? (R⊕= 6.37 × 10^6 m; RMoon= 1.74 × 10^6 m; m⊕ = 5.98 × 10^24 kg; mMoon = 7.36 × 10^22 kg.)

Science
The earth is in constant motion. It rotates and revolves. Which of the following is NOT TRUE of the Earth's motion? A Due to the revolution of the Earth, we experience seasons. B The Earth rotates on its axis once every 24 hours. This causes day and night. C The rotation of ...

physics
If the sun is 372 times farther from the Earth than the Moon, and the Moon is falling around the earth at 1.4 mm/s, what is the rate that the Sun is "falling?" Is it 1/(372^2) or 7.22*10^-6 mm/s?

Skills for success science
Plz help due tomorrow would of done it but I had a lot of school work but here the question which of the following factors drives all the weather on Earth, including large-scale storms and local weather systems? Plz help not asking for answers but help plz and thank you

Trig Math
Arc Length Stuff: Have you ever wondered what the circumference of the Earth is? Well, at the Equator, the distance around is about 25000 miles (assuming the Earth is a sphere). What if you wanted to know the distance around at any latitudinal location? For instance, if you ...

physic
Given that Earth orbits the Sun with a semimajor axis of 1.000 AU and an approximate orbital period of 365.24 days, determine the mass of the Sun. (1 AU = 1.496 ✕ 1011 m)

physics
Given that Earth orbits the Sun with a semimajor axis of 1.000 AU and an approximate orbital period of 365.24 days, determine the mass of the Sun. (1 AU = 1.496 ✕ 1011 m)

Science
1.Carrying capacity is the maximum number of_________ that an ecosystem can support. A - different species B - Individuals in a population C - habitats D - limiting factors 2. end an island ecosystem, a species of beetle feeds on the leaves of a Shrubbery plant. A species of ...

Science
Because the tilt of Earth's axis always points in the same direction, the seasons in the Northern and Southern Hemispheres are always _______ Options: A : Same B : Opposite C : three months apart. D : six months apart. PLEASE HELP ME ASAP

Science
Carrying capacity is the maximum number of_________ that an ecosystem can support. A - different species B - Individuals in a population C - habitats D - limiting factors 2. end an island ecosystem, a species of beetle feeds on the leaves of a Shrubbery plant. A species of ...

Math / geometery
A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model to the nearest cubic meter? Show your work.

Science
The weight of a 75 kg body, 8km above earth surface is 550 Newton. Calculate the gravitational strength at that height

physic
The Moon orbits Earth in a nearly circular orbit that lasts 27.32 days. Determine the distance from the surface of the Moon to the surface of Earth.

Physics
A 5.0-kg rock and a 3.8 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth.

Physics
A raindrop has a mass of 5.9 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted in the following. (a) on the raindrop by the earth

Physics
The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of earth = 5.98 1024 kg, ...

Science
"Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy." What can you conclude about heat energy? Most of the sun's energy is used to make heat energy. A small amount of...

science
plz check my answers. 1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? 1. a solar eclipse ** 2.a lunar eclipse 3. a total lunar eclipse 4 a penumbra 2. which of the following statements about a lunar eclipse is true? 1. A ...

Science
1. How did plantesmals form plants A. They broke into smaller chunks B. They collided and stuck together** C. They cooled and pulled ice together D. They began to rotate 2. Whats the distance used to define the astronomical unit A. The average distance across the sun its ...

Science
How does the mass of the moon and the earth help the moon stay in its orbit around the earth?

physics question
Due to electric effects on the earth and in the atmosphere, there is an electric field near the earth's surface that points down. Assuming the electric field is uniform with a magnitude of 150 N/C, what charge would a 145g baseball need to float as though it were weightless? I...

English
Replace the underlined portion or leave it. 1. The study of Kenya's history as a colony will help you see how colonialism works and thus understand how destructive it was to the people were colonized. Underlined portion: people were a. no change b. people what were c. people ...

help
In “who knows if the moon’s,” the speaker imagines traveling somewhere. Where does he imagine traveling? to Earth from the moon to a nearby garden to the moon from Earth to a city in the sky thx

physics
An Earth satellite moves in a circular orbit 616 km above the Earth's surface. The period of the motion is 96.8min. (a) What is the speed of the satellite? (b) What is the magnitude of the centripetal acceleration of the satellite

physics
Consider the Earth and the Moon as a two-particle system. (a) Find the gravitational field of this two-particle system at the point that is exactly halfway between the Earth and the Moon. (Assume a radial direction r̂ from the Earth to the Moon. Express your answer in vector ...

Algebra
Radio signals travel at a rate 3 * 10^8 of meters per second. How many seconds would it take a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 3.6 * 10^7 meters? A.) 8.3 seconds** B.) 1.2 * 10^-1 seconds C.) 1.08...

Reading
The Kepler spacecraft was designed to investigate humanity last unexplored frontier the far reaches of space. The NASA space telescope looks deep into the Milky Way galaxy for the sign of habitable planet where a human can potentially thrive, in the thousands of planets it has...

Calculus Please Help
How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The radius of the earth is 6....

Astronomy
In the laboratory, an atom emits a spectral line at a wavelength of 400 nanometers. In the spectrum of a star, the same spectral line is found to have a wavelength of 410 nanometers. What can be said about the star? a. It is hotter than the Sun. b. It is moving toward the ...

Math
How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The radius of the earth is 6....

Science
Does the tilt of the earth changes throughout the year True or false

physics
You spot a plane that is 1.63 km north, 2.3 km east, and at an altitude 5.2 km above your position. 1) How far from you is the plane? 2) At what angle from due north (in the horizontal plane) are you looking? 3) Determine the plane's position vector (from your location) in ...

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Homework Help: Science