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May 3, 2016

Search: An satellite moves in a circular orbit 775 km above the Earth's surface. The period of the motion is 100.1 min.

Number of results: 56,827

Chemistry
Say you are observing a motional behavior of 40 Helium molecules. Keeping the basic concepts of the kinetic-molecular theory of gases in mind: You follow one of the molecules with your eye. Over a lengthy period of time, does the molecule exhibit systematic motion, or is it ...
November 5, 2012 by Anonymous

physics
The earth's atmosphere extends to a height of nearby 200KM above its surface there many be explosion and noises taking place in the outer space but we do not hear them.why?
January 3, 2012 by Vivek

Basic electricity
A body having a mass of 4.5kg is supported 30kg above earth surface calculate the portential energy take 10kg?
February 16, 2016 by Gideon

physics
A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center, as shown in the figure below. The linear speed of a passenger on the rim is constant and equal to 6.00 m/s. A.What is the magnitude of the passenger's acceleration as she passes through ...
February 2, 2011 by mely

physics
A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center, as shown in the figure below. The linear speed of a passenger on the rim is constant and equal to 6.00 m/s. A.What is the magnitude of the passenger's acceleration as she passes through ...
February 2, 2011 by andrea

Food engineering/biology
Hey Can anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to determine D value for the two temperatures. But i'm unsure how to do part b. Alicyclobacillus acidoterrestris is a quite hat resistant microorganism...
May 23, 2010 by Jennifer

physics
While waiting to board a helicopter, you notice that the rotor's motion changed from 340 rev/min to 265 rev/min in one minute. Assuming that this acceleration remains constant, calculate how much longer (in seconds) it will take for the rotor to stop.
May 6, 2013 by Anon

physics
The value of g at Earth’s surface is about 9.8 m/s^2. If Earth were of uniform density (same mass/volume throughout), what would the value of g be inside Earth at half its radius?
March 6, 2012 by jim

Physical Science
The Earth moves in a nearly perfect circle around the Sun. Assume the speed stays constant. Is the Earth accelerating or not?
October 12, 2013 by unknown

Astronomy
Darwin proposed that the Moon formed far closer to Earth than it is now. Let’s see just how close it could possibly be to Earth and survive. In particular, in the next 4 problems you will find the distance from Earth at which the tidal force due to Earth is sufficient to lift ...
December 23, 2012 by sam

Physics
The second hand and the minute hand on one type of clock are the same length L. -------------------------------------------------------------------------------- (a) What is the period Tsecond of the motion of the second hand? (_) The period is 10 seconds. (o) The period is 60 ...
April 5, 2008 by Karen

physics
The mass of the Mars is about 0.11 the mass of the earth, its radius is 0.53 that of the earth, and the acceleration due to gravity at the earth's surface is 9.80 {\rm m}/{\rm s}^{2}.
December 9, 2011 by Anonymous

geometry
whats the Biconditional of "the moon is the largest satellite of Earth"
September 18, 2011 by Anonymous

geometry
write a biconditional for: the moon is the largest satellite of Earth.
September 21, 2011 by David

Physics
why does an astronaut weigh less on the moon than on Earth? is it because the gravitational field strength is less on the moon's surface than on Earth's surface
February 20, 2009 by Bella

physics
Assuming that 68.1% of the Earth's surface is covered with water at average depth of 1.21 mi. ,estimate the mass of the water on Earth. One mile is 1.609 km and the radius of the earth is 6.37 x 10^6 m. Answer in units of kg
June 11, 2011 by ashley

earth
Body on surface of earth weighs 400 lb. Radius of earth is about 4000miles. If same body were placed on 4000 mile high tower, what would its weight be
January 20, 2012 by jerry

physics
a train moving at constant velocity of 54 k mph moves east wards for 30 min, then due to north with the same speed for 40 min. What is the average velocity of the train during the run?(in k mph)
May 25, 2012 by srikala

physics
a train moving at constant velocity of 54 k mph moves east wards for 30 min, then due to north with the same speed for 40 min. What is the average velocity of the train during the run?(in k mph)
May 25, 2012 by srikala

Physics
A 279 N force is pulling an 75.9-kg refrigerator across a horizontal surface. The force acts at an angle of 26.3 ° above the surface. The coefficient of kinetic friction is 0.259, and the refrigerator moves a distance of 9.14 m. Find (a) the work done by the pulling force, and...
February 27, 2012 by Candy

Physics
Calculate the kinetic energy that the earth has because of its rotation about its own axis. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33 109 J. ...
March 28, 2007 by Jim

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
September 20, 2012 by Aa

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
September 20, 2012 by Aa

physics
Sally travels by car from one city to another. She drives for 24.0 min at 63.0 km/h, 36.0 min at 45.0 km/h, and 44.0 min at 49.0 km/h, and she spends 13.0 min eating lunch and buying gas.
September 19, 2009 by berha

Math
A cylinder cop has a circular base of radius 7cm & height of 10cm taking 22/7(a)calculate it curved surface(b)d area of it circular base
May 6, 2015 by patience daniel

earth
A 5.0-kilogram sphere, starting from rest, falls freely 22 meters in 3.0 seconds near the surface of a planet. Compared to the acceleration due to gravity near Earth’s surface, the acceleration due to gravity near the surface of the planet is approximately
December 29, 2011 by Anonymous

physics
A sled loaded with bricks has a total mass of 23.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 12.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.350...
October 10, 2012 by lib

physics
A liquid is used to make a mercury-type barometer. The barometer is intended for spacefaring astronauts. At the surface of the earth, the column of liquid rises to a height of 2185 mm, but on the surface of Planet X, where the acceleration due to gravity is one-fourth of its ...
November 13, 2007 by Jen

Physics
7. An early objection to the idea that the earth is spinning on its axis was that the earth would turn so fast at the equator that people would be thrown into space. Show the error in this logic by calculating the centripetal force needed to hold a 100. kg person in place at ...
February 2, 2015 by Brian

Physics
A car moves in a circular path at 15 mph. Which of the following statements about the cars motion would be correct? a. The cars acceleration is constant. b. The cars velocity is constant. c. The cars speed is constant. d. The cars velocity and speed are constant.
September 24, 2011 by Lisa

COLLEGE PHYSICS
A rocket is launched at an angle of 60.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile.
September 10, 2010 by CARY

Earth's Heat Resources
list 3 examples of natural activities or events that carry thermal energy from within Earth directly to Earth's surface. I dont get what kinds of activities its referring to.
December 7, 2010 by Sydney

Earth's Heat Resources
list 3 examples of natural activities or events that carry thermal energy from within Earth directly to Earth's surface. I dont get what kinds of activities its referring to.
December 8, 2010 by Sydney

physics
i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you
November 28, 2012 by need for help

physics
i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you
November 28, 2012 by need for help

Science
Approximately how long does an earhquake P-wave take to travel the first 6500 kilometers after the earthquake occurs? a. 6.5 min b. 8.0 min c. 10.0 min d. 18.5 min
March 24, 2009 by Angie

physics
A de-orbit burn, similar to that presented in the previous math problem, has been performed. During this de-orbit burn a pre-calculated ∆V (delta V, change in velocity) of 290 ft/s (or 88.4 m/s) will be used to decrease the Shuttle’s altitude from 205 miles to 60 miles ...
January 20, 2012 by Levi B.

physics
The value of g at the Earth's surface is about 9.8 m/s2. What is the value of g at a distance from the Earth's center that is 9.5 times the Earth's radius?
July 10, 2010 by anonymous

science. -_-
Okk so im not asking for answers, i just need somone to expplain this homework to me! I dont get it what so ever. So the homework tittle is Weight in space. So it has a whole discripition in wjich i will write dpwn for you. The paper says: Gravity is an invisible force that ...
September 23, 2013 by Leslie:)

Physics
A spherical satellite has 12 identical monopropellant thrust chambers for attitude control with the following performance characteristics: thrust (each unit): 5 lbf; Is (steady state or more than 2 sec): 240 sec; Is (pulsing duration 20 msec): 150 sec; Is (pulsing duration 100...
February 19, 2016 by Matthew

College Physics
A liquid is used to make a mercury-type barometer. The barometer is intended for spacefaring astronauts. At the surface of the earth, the column of liquid rises to a height of 2185 mm, but on the surface of Planet X, where the acceleration due to gravity is one-fourth of its ...
November 13, 2007 by Jen

Physics
A rocket cruising past Earth at 0.79c shoots two bullets at 0.92c relative to the rocket with one of the bullets fired along the direction of the rocket's motion and the other fired opposite the rocket's motion. (a) What velocity does an Earth-based experimenter measure for ...
April 29, 2011 by Darren

physics
how much work is required to lift a 10 newton weight from 4.0 meters to 40.0 meters above the surface of earth
February 15, 2011 by abu

Physics
A 200-g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. If the total energy of the system is 2.00 J, find (a) The force constant of the spring and (b) The amplitude of the motion.
February 17, 2011 by Ray

physics
Joe has a weight of 850 N (about 193 lb) when he is standing on the surface of the Earth. What would his weight (the gravitational force due to the Earth) be if he tripled his distance from the center of the Earth by flying in a spacecraft?
February 22, 2012 by Mina

Physics Circular Motion
A 0.40-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.0 m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have? May someone please walk me through ...
June 16, 2012 by Mike Joseph

physics
when an object is rotating in a circle and the only force is acting on it is friction how is force of friction vector pointing towards the circle because an object in circular motion is traveling in that direction, it's accelerating towards the center of the circle, but ...
October 12, 2009 by Physics

Science
1. Temperature cools about 6.5 degrees Celsius per kilometer of _______. 2. ___________ from 10 km to 50 km about Earth, this layer contains ozone that absorbs much of the Sun's ultraviolet radiation. It contains most clouds and ____________. 3. _______ layers include the ...
March 15, 2010 by Terri

Science
Can someone please please help me? I don't have a text book, i have a online book and it isn't working. Can someone please be nice and help me? Science isn't my subject! 1. Why is Earth’s temperature just right for life? (1 point) Earth’s core is hot enough to heat Earth’s ...
January 21, 2014 by Mandy

Physics
The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth exerts on the Hubble?
April 6, 2011 by Denise

Physics
The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth exerts on the Hubble?
April 6, 2011 by Denise

chemistry
If a satellite orbits the earth at a velocity of 3.2 x 10⁶ km/hr, this would be the same as how many ft/s?
January 31, 2009 by ashley

physics
Determine the velocity of a satellite orbiting Earth at a height of 3.2 x 10^3 meters.
March 1, 2012 by becky

Science
What is the centripetal acceleration a satellite is orbiting the Earth at an altitude of 300.22 km?
February 1, 2016 by Jack

physics problem!!
If the water molecules in 5.70 g of water (H2O) were distributed uniformly over the surface of the Earth, how many such molecules would there be on 1.40 cm2 of the Earth's surface? -Molar mass Hydrogen gas(H2)=2.02 g/mol -Molar mass Oxygen gas (O2) = 32.0 g/mol -Radius of ...
April 9, 2013 by boom

Physics
(1) body is taken to depth of 32km below the surface of the earth. Calculate the percentage decrease in the weight of the body at this depth (The radius of the earth is 6400km) (2)A wire of mass per unit length 5.0gm-1 is stretched between 2 points 30cm apart. The tension in ...
July 26, 2008 by matrixxavier

Math-Help-please?
Source: At the end of 1993, scientists tracked 1550 nonfunctional components in orbit and projected 42 such objects are added each year. Suppose that an average of 15 of these are brought back to Earth each year. Question. Let t represent time in years. Write the function D ...
November 17, 2011 by Rebecca

Physics
Really need help with this asap plz~ there is a 4kg wooden block on top of a wooden ramp forming an angle of 37 degrees above surface.The block is placed 1.2 m up on the ramp and the ramp is connected to another wooden flat board.So when the block slides down, it continues a ...
December 8, 2013 by Joanne

Chem
suppose that you place exactly 100 bacteria into a flask containing nutrients for the bacteria and that you find the following data at 37 °C: t (min):0 15.0 30.0 45.0 60.0 Number of bacteria: 100 200 400 800 1600 What is the order of the rate of production of the bacteria? How...
March 12, 2014 by Bri

Science
An alien spaceship is revolving around a spherical asteroid in a very low circular orbit. The period of revolution of the spaceship is 15 minutes. A research party of the alien students lands on the steroid and drills a tunnel through it along a diameter. They then launch a ...
June 18, 2011 by Freddy

physics
How high above the earth’s surface would you have to be before your weight would be only 0.6 its current value?
March 18, 2011 by nathan

third side (picture attached)
I have already asked this in another thread. Here is more explanation: The radius of earth's orbit is 1.5 * 10^8km & the radius of venus's orbit is 1.1 * 10^8 km. We need to find out the distance from earth to venus for both positions of venus. A picture is uploaded here if ...
November 10, 2006 by Jen

College Physics
When searching for gold, measurements of g can be used find regions within the Earth where the density is larger than that of normal soil. Such measurements can also be used to find regions in which the density of the Earth is smaller than normal soil; such regions might ...
September 21, 2011 by Please Help!!!

physics
The gravitational field intensity at a height of 150 km above the surface of Uranus is 8.71 N/kg. The radius of Uranus is 2.56 x 107 m. a. Calculate the mass of Uranus. b. Calculate the gravitational field intensity at the surface of Uranus. c. How much would a 100 kg person ...
May 15, 2012 by matin

science
The earth wobbles slightly on its axis. which of the following earth processes might best account for these changes in earth's rotation? 1)underground nuclear explosions 2)population increases 3)variations in rainfall and river flooding 4)motion of continental plates and core ...
May 12, 2010 by kayci

Physics
A sphere with a moment of inertia 0.658mr2 and mass m and radius r rolls without slipping along the track shown on a planet where the acceleration due to gravity is g. It starts from rest at a height h = 4.87R above the bottom of the circular loop of radius R. (For simplicity...
November 2, 2012 by REEEEEEEE

physics
Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes an orbit once every 530 days. a.) ...
December 16, 2008 by Michelle

10th grade
A sledge loaded with bricks has a total mass of 18.0 kg nd is plled at constant speed of a rope incllined at 20 degres above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. the coefficient of kinetic friction between the sledge and surface is 0....
November 27, 2010 by dom

Chemistry
Consider the following hypothetical aqueous reaction: A (aq)-->B(aq)}. A flask is charged with 0.065 (mole) of A in a total volume of 100.0 (mL}. The following data are collected: Time (min) 0 10 20 30 40 Moles of A .065 .051 .042 .035 .031 Calculate the average rate of ...
February 9, 2012 by Emily

Physics
Two current carrying wires cross at right angles (like a + sign). Wire 1 has current directed horizontally to the left. Wire 2 has current directed vertically up. If the wires are not restrained, what statement best describes the motion of the wires? A) Wire 1 moves out of the...
March 13, 2010 by Jane

calculus
1. A particle moves along the x-axis, it's position at timer given by x(t)=t/(1+t^2), t greater than or equal to 0,where t is measured in seconds and x in meters. a) find the velocity at time t. I am a little confused.. Do I find the derivative by using the quotient rule? What...
November 16, 2014 by Anonymous

Geographyand socity
1. _______________________ is the science of predicting the weather. (1 point) Climatology Ecology Meterology Botany 2. _______________________ is the condition of the atmosphere at any given location and time. (1 point) Weather Precipitation Climate Temperature 3. This layer ...
October 5, 2010 by vensu

Physics
How many times further from the Sun than the Earth is an asteroid with an average orbital period of 7.43 years? (HINT: Let the distance to the Earth be R=1 AU)
December 20, 2012 by Alex

Physics
If a small planet were located 7 times as far as the Earth's distance from the Sun, it period is ___ earth years?
February 14, 2013 by Eve

Physics
A perforated bead of mass 37g moves on a frictionless horizontal circular track of radius R=0.65m. The track runs through the bead. When the bead is at rest in the horizontal position, it is tied to a spring at the centre of the track. The unstretched length of the spring is R...
October 20, 2013 by Anonymous

Calculus
A hot air ballon lifts off the earth 300m away from an observer and rises straight up at a rate of 80m/min. At what rate is the angle of inclination of the observers line of sight increasing at the time the balloon is 300, above the ground?
January 29, 2015 by Chris

Physics
Planet Earth as a Spring. Assume that the Earth is perfect sphere of mass M=5.98x10^24kg, radius 6,370km, and uniform density. Imagine a long, straight tunnel through the center of the Earth, connecting the North and South poles . A capsule of mass m is dropped into this ...
February 19, 2013 by Betty Ariston

Science
Does Earth rotate or orbit each day?
September 8, 2014 by Max

sci
Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week’s aXcess page. o After viewing the animation, your...
January 9, 2009 by troyer0269

Physics
An object is executing circular orbits of radius 0.5 m. If it completes an orbit every 3 seconds, what is its tangential speed?
April 25, 2011 by Rob

Physics
An object is executing circular orbits of radius 0.5 m. If it completes an orbit every 3 seconds, what is its tangential speed?
May 10, 2012 by Bob

Science
Which of the following describes the slowest change on earth's surface? A) Gravity pulls an area of wet soil and rock downward in a landslide B) An earthquake releases energy that built up below Earth's surface C) Lava explodes from a volcano on an island D) A canyon forms as ...
October 22, 2011 by Bob

Physics
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.2 m/s at ground level. Its engines then fire and it accelerates upward at 4.20 m/s2 until it reaches an altitude of 960 m. At that point its engines fail, and the rocket goes into ...
October 11, 2009 by Becky

physics
a block of mass m=0.9 kg is connected to a spring of force constant k= 775 N/m on a smooth horizontal surface. plot the potential energy of the spring from x= -5 cm to x= 5 cm. determine the turning points of the block if its speed at x= 0 is 1.2 m/s.
October 7, 2012 by Mima

physics
The sun is 1.5 1011 m from the earth. (a) Over what surface area is solar radiation spread at this distance? (b) What is the total power radiated by the sun? (The sun delivers energy to the surface of the earth at a rate of approximately 1400 W/m2.) (c) Treating the sun as a ...
April 9, 2012 by JOHN

Physics
the motion of two students- Mac (starts @ 2m) and Tosh (starts @ 12m) - as they enter and exit the school library during a passing period determine the sppeds at which the two students move than determine how much faster the fastest student moves thatn the slower student?
November 15, 2010 by Mary

Circular motion
The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 5.0 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?
October 10, 2011 by Acceleration

physics
Sally travels by car from one city to another. She drives for 30.0 min at 80 km/h, 12 min at 105 km/h, and 45 min at 40 km/h. She spends 13.0 min eating lunch and buying gas. what the average speed for the trip?
October 11, 2010 by Anonymous

Physics
The average distance between Earth and the sun is 1.50e8 km. Calculate the average speed, in km/h, of Earth assuming a circular path about the sun. Use the equations v = 2(pi)r/T. You know that, for the Earth, T = 365.25 days. Convert that to hours (by multiplying by 24 h/day...
August 16, 2007 by Jayd

Physics
When a spacecraft travels from the Earth to the Moon, both the Earth and the Moon exert a gravitational force on the spacecraft. Eventually, the spacecraft reaches a point where the Moon's gravitational attraction overcomes the Earth's gravity. How far from the Earth's surface...
October 13, 2012 by Sam

Physics
Calculate the force of the Earths gravity on a spacecraft 12,800 km (2 earth radii) above the Earths surface if its mass is 1350 kg?
June 14, 2012 by Mr. McKee

math
The Moon orbits Earth every 27.3 days. Determine the angular velocity of the Moon, in degrees per day and in radians per day. The radius of the orbit of the Moon is about 384 400 km. How far does the Moon move along an arc of it's orbit every?
November 8, 2009 by Anonymous

science
One factor determining the effect of gravity on objects is their.....? The farther away from Earth an object gets, Earth's gravity affects it ......? Friction that occurs between the surface of around object and another surface is ........? Objects with larger surfaces have ...
February 27, 2012 by Gabby ( 5 grade)

Math
You withdraw $260 from your bank account in 5 trips to the ATM. What is the average change in your account balance after each trip? A submarine descends 60ft./min. What depth below the water's surface will the submarine reach in 4 min after leaving the surface? In a trivia ...
September 24, 2013 by Stacy

biology
What regulary hit the earth for the first 600 million years of existence? What do scientists call this period of time? - Aseroids, and meteors hit the earth.What do scientists called this period of time ? I need help answer this question please. If the first question is right ?
December 8, 2010 by joy

Calculus
If the volume of a cube is increasing at 24 in^3/min and the surface area of the cube is increasing at 12 in^2/min, what is the length of each edge of the cube? I know that dV/dt=24 and ds/ds=12. I also know that Volume=s^3 and Surface Area=6*s^2, but what do I do from there?
December 7, 2010 by Anna

physics
A bob of mass = 0.250 is suspended from a fixed point with a massless string of length = 23.0 . You will investigate the motion in which the string traces a conical surface with half-angle = 25.0. What tangential speed must the bob have so that it moves in a horizontal circle ...
October 3, 2010 by bryan

Physical Science
4. What measurable property/properties affects the period of a pendulum? 7.Give another example of periodic motion other than simple harmonic motion. 8. If you landed on the moon, could you use the pendulum method to find "g" there? Explain.
February 12, 2016 by Sherianna

physics
i keep trying to put this in my calculator but i keep getting the wrong answer...can someone please try it on their calculator and help me? thnks (a) Find the distance r to geosynchronous orbit. Apply Kepler's third law. T^2=((4pi^2)/(GM_E))r^3 Substitute the period in seconds...
March 15, 2009 by cb

astronomy
On Earth, an astronaut weighs about 600 Newtons. The mass of the Earth is about 6 x 1024 kg, and the radius of the Earth is about 6.4 x 106 m. Suppose the astronaut climbs a ladder to a height of one Earth radius above the Earth. What is the new weight of the astronaut? please...
March 21, 2016 by bob

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