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January 27, 2015

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: 49,548

physics
A particle moves in a circle in such a way that the x- and y-coordinates of its motion are given in meters as functions of time t in seconds by: x=5cos(3t) y=5sin(3t) What is the period of revolution of the particle? Here's what my train of thought was... dy/dt over dx/dt ...
January 20, 2008 by Hannah

Physics
The drawing shows a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48 above the horizontal at its end, which is h = 0.52 m above the ground. When she leaves the track, she follows the characteristic path of projectile motion. ...
February 24, 2007 by Mary

physics
The force of gravity at Earth's surface on an astronaut is 634N. What is the force of gravity on the same person at each of the following distances, in multiples of Earth's radius, from the centre of Earth? A)2 B)5 C)10 D)17.2
April 2, 2012 by Melissa

physics
a satelitte is in orbit about the earth. its orbital radius 7.47x10^7. mass of satelitte 6862kg & mass of earth 5.97x10^24kg determine the orbital speed in mi/s 1mi/s=1609m/s
February 15, 2012 by taylur

earth scince
What process is mainly responsible for shaping Earth's land surface
March 15, 2009 by Andrew

science
The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground Is this true? yeah it is true yeah it is true The true speed of a moving car on the Earth, if you want to be very precise, would be the speed ...
May 10, 2007 by Haley

Physics
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 151 N/C downward at an altitude of 280 m and 167 N/C downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere, assuming it to be ...
October 9, 2011 by Tom

PHYSICS
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 151 N/C downward at an altitude of 280 m and 167 N/C downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere, assuming it to be ...
October 10, 2011 by Tom

Physics
Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earths mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth
December 16, 2011 by Calitryphosa

physics
2. Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earths mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth
January 11, 2012 by crystal

physics
A proposed space station consists of a circular tube that will rotate about its center(like a tubular bicycle tire). The circle formed by the tube has a diameter of 1.1km. What must be the rotation speed(revolutions per day) in an effect nearly equal to gravity at the surface ...
January 7, 2015 by Alexis

Physics
The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c) The charge of the particle d) The magnitude of the magnetic field e) Actually, it ...
March 13, 2010 by Johnny

physics
A boy whirls a stone in a horizontal circle of radius 1.9 m and at height 2.1 m above ground level. The string breaks, and the stone flies horizontally and strikes the ground after traveling a horizontal distance of 10 m. What is the magnitude of the centripetal acceleration ...
July 10, 2010 by Sam

Earth's Heat Resources
How is the energy that reaches earth's surface returned to space? is is by radiation?
December 7, 2010 by Sydney

Earth's Heat Resources
How is the energy that reaches earth's surface returned to space? is is by radiation?
December 8, 2010 by Sydney

math 11 - Ms. Sue i need your kind help
i dontget how the textbook got the answer, h = -30cos[(1.43)x] + 40 the question is: a paintball is shot at a wheel of radius 40 cm. the paintball leaves a cricuarmark 10 cm from the outer edge of the wheel. As the wheel rolls, the mark moves in a circular motion.assuming ...
December 13, 2010 by pranav

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...
February 19, 2014 by Ho

physics
The radius of Earth is about 6.38 103 km. A 7.40 103 N spacecraft travels away from Earth. What is the weight of the spacecraft at the following distances from Earth's surface?
December 13, 2010 by Anonymous

math
The earth has a radius of 6,380 km. The formula for the volume of a sphere is �� V = 4/3 x^3, and the formula for surface area of a sphere is A = 4x^2 . Find the volume and surface area of the earth and write the answer in scientific notation with two numbers ...
November 3, 2010 by james

Physical Science
Here's a question from my homework that I have no idea where to even beging with it. A European "weighs" 100 kg on Earth. a. What is his mass on Earth? b. What is his weight on Earth? c. What is his mass on the moon where the acceleration due to gravity is 1/6 that of the ...
October 4, 2007 by Beth

math
a diver dives to 84m. If the diver rises 5 meters per min for 10 min. Where is the diver in relation to the surface. The answer would be 34 meters right?
October 31, 2008 by deedee

Chemistry(Please check)
The units of a rate constant for zero, first, and second order reactions are given in the textbook. If the time units are minutes, what would you expect the units to be for a third order reaction? 1) 1/min^3 2) mol^2/L^2-min 3) L/mol-min^2 4) L^2/mol^2-min 5) L^2/mol^2-min^2 I...
February 19, 2012 by Hannah

Earth science
Which single factor generally has the greates effect on the climate of an area on the earth's surface?
May 9, 2011 by Maria

earth
If you had a mole of M&M's, how many times could you cover the surface of the earth ?
November 4, 2012 by Anonymous

SS
Earths oceans cover nearly ____ of Earths surface.
February 7, 2013 by Bell

physics
What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h?
March 1, 2013 by ayoola

physics
As Newton showed, gravity is a force that acts along the line separating two bodies and causes the two bodies to be attracted to each other (i.e. it is a central force). In this problem, assume that the planetary orbits about the Sun are circular. a. Does the force of gravity ...
October 24, 2010 by zeph

Physics
The position of a body moving in simple harmonic motion is given by m t x       + = 4 9 cos 3 π . For this motion, what are the (a) amplitude, period, phase constant, frequency, and angular frequency? Determine the body’s (b) maximum speed and maximum ...
December 18, 2011 by Dia

Science
Neptune's largest satellite is named (Triton) and revolves in a ( ) orbit. Could someone help me fill in the second blank? Please help! Nevermind, I got that question wrong (I'm homeschooled and my computer program grades me) and later found out that the correct answer was ...
February 25, 2007 by Jenna

Physics
At a certain harbour, the tides cause the ocean surface to rise and fall a distance d(from highest level to lowest level) in simple harmonic motion, with a period of 12.5h. How long does it take for the water to fall a distance 0.250d from its highest level?
July 10, 2013 by Hui

physics
A boy whirls a stone in a horizontal circle of radius 1.3 m and at height 2.0 m above level ground. The string breaks, and the stone flies off horizontally and strikes the ground after traveling a horizontal distance of 9.8 m. What is the magnitude of the centripetal ...
September 13, 2010 by Antonio

Physics
A person is making homemade ice cream. She exerts a force of magnitude 17 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handle is turned once every 2.0 s, ...
February 23, 2007 by Mary

physics
Two particles A and B are in uniform circular motion about a common center. The acceleration of particle A is 4.7 times that of particle B. Particle B takes 2.4 times as long for a rotation as particle A. Th ratio of the radius of the motion of particle A is that of particle B...
September 23, 2011 by Audrey Petricevich

physics
A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1 km. What must be the rotation speed (revolutions per day) if an effect equal...
September 22, 2012 by kim

Maths : circular motion
1. A 3 metre piece of string is threaded through a hole in the table. If equal portions of the string are above and below the table, and the top mass of 2kg rotates at 1rev/sec , how fast does the bottom mass of 1kg rotate? (in rev/sec) 2. If, in the above question, the two ...
October 28, 2011 by Candice

Physics
A truck travels 2.85 km north and then makes a 90 left turn and drives another 4.90 km. The whole trip takes 4.50 min. (a) With respect to a two-dimensional coordinate system on the surface of Earth such that the y-axis points north, what is the net displacement vector of the...
May 21, 2012 by James

math
after school chase spends 20 min reading 30 min practicing the piano 15 min cleaning his room, and 40 min doing his homework, chase is busy for 105 min what fraction of the time does he spend cleaning his room?
January 20, 2011 by ashley

physics
A) What is the minimum speed, relative to the Sun, necessary for a spacecraft to escape the solar system if it starts at the Earth's orbit? B) Voyager I achieved a maximum speed of 125 000 km/h on its way to photograph Jupiter. Beyond what distance from the Sun is this speed ...
May 30, 2007 by jean

Physics
Assume that you havea mass of 65 kg. I you are standing on the surface of Earth, What is the force of gravitational attraction between you and the earth?
January 24, 2012 by Abraham

Physics
Given that acceleration due to gravity at the surface of the earth is 9.8N/kg, estimate a value for the mass of the earth. G=6.7x10^-11
April 11, 2012 by Amponsah

physics.. important stuff !
i still do not understand?? can someone please help me out??? (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force accelerate the body on whic it acts?? (c) Upon what threee factors does the centripetal...
January 15, 2007 by maria

physics
1. Measurements show that there is an electric field surrounding the Earth. Its magnitude is about 100 N/C at the Earth's surface and points inward toward the Earth's center. From this information, can you state whether the Earth is negative or positive? (Planet Earth is ...
July 15, 2010 by Nicole

Physics
Could someone please review my answers and tell me if I am on the right track? Thank you! A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the ...
August 31, 2012 by Miaow

physics
A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.
October 5, 2011 by jon

Physic~~~
Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earths mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth. So I was doing this and I got stuck here; gs = G*Ms/Rs = G*(95Me)/(9Re) = ge*(95/9) = 1.173*ge .... ...
January 6, 2015 by Emily

Earth Science
Which of the following statements correctly describes the asthenosphere? 1- it is thin cold and rigid layer 2- it is the source of the earth's heat 3- it permits plate motion 4- it occurs only near subduction zones My answer is 1
December 2, 2014 by Steve

math
3 h 20 min 4 h 25 min + 5 h 35 min=13 hrs 20 min 9 lb 15 oz - 5 lb 8 oz=4 lbs 7 oz Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains?=1 pt 13 oz
September 30, 2009 by callie

math
3 h 20 min 4 h 25 min + 5 h 35 min=13 hrs 20 min 9 lb 15 oz - 5 lb 8 oz=4 lbs 7 oz Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains?=1 pt 13 oz
September 30, 2009 by callie

math
Consider the right circular cone shown. If the radius of the circular base remains the same and the height varies, what are the minimum surface area and minimum volume the cone can have?
January 30, 2010 by elcapitain

math
Consider the right circular cone shown. If the radius of the circular base remains the same and the height varies, what are the minimum surface area and minimum volume the cone can have?
January 30, 2010 by elcapitain

math
Consider the right circular cone shown. if the radius of the circular base remains the same and the height varies, what is the minimum surface area and minimum volume the cone can have?
February 27, 2010 by Donna

physics
The Bohr model of the hydrogen atom consists of an electron travelling in a circular orbit of radius 5.29 x 10-11 m around a proton. The attraction between the two gives the electron the centripetal force required to stay in orbit. Calculate the: a. Electric force between the ...
May 15, 2012 by matin

Science
Three light beams encounter a medium. One light ray is reflected, while the other two are absorbed. How can the medium be described? Transparent Translucent Opaque or Clear In satellite communication, does the satellite... Receive radio signals Prevent radio signals Send radio...
November 30, 2013 by Tooler

sceince
hree light beams encounter a medium. One light ray is reflected, while the other two are absorbed. How can the medium be described? Transparent Translucent Opaque or Clear In satellite communication, does the satellite... Receive radio signals Prevent radio signals Send radio ...
May 16, 2014 by jjk

physics
what is tangential velocity of the earth as it travels in its orbit around the sun?
January 10, 2011 by Rob

Physics 1
What is the rotational kinetic energy of the Earth in its orbit around the sun?
April 17, 2014 by Sally

Chemistry
Calculate the rate constant, k, for the reaction 2H2O2(l) --> 2H2O(l) + O2(g) Using the rate, - 0.02 mol/L.min H2O2, and the initial concentration, [H2O2] = 0.5 mol/L Question 7 options: - 25/min 25/min - 0.04/min 0.04/min
November 5, 2014 by Tamera

Physics
At a place directly below a thundercloud, the induced electric charge on the surface of the Earth is +1.0 X 〖10〗^(-7) coulomb per square meter of surface. How many singly charged positive ions per square meter does this represent? The number of atoms on the ...
February 1, 2010 by Josslyn

TOBOBPURSLEY
I thought phase shift was theta over omega correct??? and the period equals two pi over omega 40 min = (2pi)/omega omgea = pi/20 min phase shift = theta over omega phase sift = (20?)/pi min now you said phase shift was (35 pi)/40 I do not see why I appologize i made a spelling...
December 6, 2009 by Joe

Economics
The Andrews Corporation produced satellite dishes, was purchased by another compay, which was a cable company: The Total Cost function for the New Company is: TC = 1,000 + 16Q 16Q2, where the demand curve for Satellite Dishes is PS = 400 QS and that for the cable component...
July 16, 2010 by Joanna

Physics
The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity on Earth is 9.8 ...
July 4, 2012 by Dave

physics # 5
5. The length of a simple pendulum with a period on Earth of one second is most nearly a.) 0.12 m b.) 0.25 m c.) 0.50 m d.) 1.0 m e.) 10.0 m The formula for the period is P = 2 pi sqrt(L/g) g is the acceleration of gravity, 9.8 m/s^2. Solve for L. (or get out a piece of string...
August 7, 2007 by gomez

science
A person who weighs 600 newtons on Earth would weigh only 100 newtons on the Moon. Which statement best explains why? A.The circumference of Earth is larger than that of the Moon. B.The density of Earth is greater than that of the Moon. C.The mass of Earth is greater than that...
February 17, 2014 by victoria

math check
1.find the area heigh 5ft width 8 ft A=H x W A= 5ft x 8Ft A= 40ft^2 2.The circular surface of a table has a diameter of 4 ft. What it will cost to have the top refinished if the company charges $5.00 per square foot for the refinishing ? Use 3.14 for pi and round your answer ...
January 6, 2007 by tammy

Physics
Note: I am in Alegebra-based Physics. You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.2 N force, it moves 16.3 m in the first 2.30 s, ...
September 30, 2006 by Josie

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 ...
September 30, 2010 by tim

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 ...
September 30, 2010 by tim

science
You are somewhere in the middle of the country and a satellite that is a short distance above San Francisco sends out a pulse that your GPS receiver tells you took 0.002 seconds to reach you. Since you know that the radio signal travels at the speed of light, how far does this...
June 6, 2011 by Anonymous

physics
A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer in units of kg m2 b...
October 21, 2011 by phys101

science
Suppose a near earth asteroid of radius 50m strikes the earth surface.what could be the impact of such a collision?
December 21, 2009 by sam

Physics
How much energy is required to move a 900 kg object from the Earth's surface to an altitude twice the Earth's radius?
June 17, 2012 by Kyla

Physics
How much energy is required to move a 900 kg object from the Earth's surface to an altitude twice the Earth's radius?
June 17, 2012 by Kyla

Physics
Earth's mean radius and mass are 6,371 km and 5.97 x 1024 kg, respectively. Show that the acceleration of gravity at the surface of Earth is 9.80 m/s2.
September 17, 2013 by vv

physics
a bob vibrates up and down on a vertical spring. if the period of the motion is two seconds, the frequency is: two seconds. i took f=1/period=1/2
June 27, 2010 by Rebecca

Electric Fields
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 151 N/C downward at an altitude of 280 m and 167 N/C downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere, assuming it to be ...
October 9, 2011 by Phil

geometry
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...
November 6, 2014 by Terri

Chemistry
would the density of a person be the same on the surface of earth and on the surface of the moon? explain?
September 20, 2007 by Charles

chemistry
Would the density of a person be the same on the surface of the Earth and on the surface of the moon? Explain.
October 9, 2008 by laurel

physics
The natural greenhouse effect raises the surface temperature at the surface of the Earth by about 20 or 40 k?
October 15, 2010 by jim

physics
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 85.0 km/h, 12.0 min at 95 km/h, and 35.0 min at 30.0 km/h, and spends 35.0 min eating lunch and buying gas. Determine the average speed for the ...
September 13, 2011 by gigi

Precalc(attn Bobpursley)
Hi i posted this before but I wanted to ask Bobpursley a few questions on his reply 1)For the first function you used cosine when they ask for sin, why is that? Also why did you put .5 in the beginning and end of the function? 2)For the second question why did you put 10 in ...
August 5, 2011 by anna

Physics
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. The ball has a mass m = 0.162 kg and moves at v = 4.73 m/s. The circular path has a radius of R = 0.87 m 1)What is the magnitude of the tension in the string when the ball is at...
September 28, 2014 by Jessica

Physics
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. The ball has a mass m = 0.162 kg and moves at v = 4.73 m/s. The circular path has a radius of R = 0.87 m 1)What is the magnitude of the tension in the string when the ball is at...
September 28, 2014 by Jessica

Math
The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean? 362.10
November 30, 2010 by Hayley

PHYSICS
An object undergoes simple harmonic motion. During that motion the object needs 1.1 seconds to reach one point of zero velocity from the previous such point. If the distance between those points is 0.3 m, calculate the period.
April 7, 2011 by Unknown

Chemistry
Any object, be it a space satellite or a molecule, must attain an initial upward velocity of at least 11.2 km/s in order to escape the gravitational attraction of the earth. What would be the kinetic energy in joules of a satellite weighing 2337 lb that has the speed equal to ...
June 8, 2011 by Lance

University Physics (Cal-Based)
Calculate the velocity of a 20kg object that is dropped from a height h above the Earth, where h is very large compared to the radius of the Earth. The radius of the Earth is 6380 m and the mass is 5.94 x 10^24 kg.
December 11, 2008 by Naaz

physics
i will begreatfull if u help me insolving the below problems: 1.)the time period of a pendulum clock on the surface of the earth is 6 sec.Find the timeperiod of the same pendulum on the moon.(g=9.8m/sec2) 2.)the time period of a pendulum is 6.28sec.Whay will be its lengthif g=...
May 17, 2012 by srikar

Physics
What is the speed of an object in circular motion called?
May 24, 2010 by James

physics
A few years ago, a movie came out about a soldier, John Carter, who was transported to Mars and could perform amazing feats of strength and jumping due to the lower Martian gravity. The surface gravity of Mars is 0.38 times that of earth. If John could lift 100 kg on earth (...
February 11, 2013 by please help me out!!! please

PHYSICS
A few years ago, a movie came out about a soldier, John Carter, who was transported to Mars and could perform amazing feats of strength and jumping due to the lower Martian gravity. The surface gravity of Mars is 0.38 times that of earth. If John could lift 100 kg on earth (...
February 12, 2013 by please help me out!!! please

physics!!!!!!!!!!!!!!!!!
A few years ago, a movie came out about a soldier, John Carter, who was transported to Mars and could perform amazing feats of strength and jumping due to the lower Martian gravity. The surface gravity of Mars is 0.38 times that of earth. If John could lift 100 kg on earth (...
February 13, 2013 by please help me out!!!!

Physics
In the hydrogen atom the radius of orbit B is sixteen times greater than the radius of orbit A. The total energy of the electron in orbit A is -0.378 eV. What is the total energy of the electron in orbit B?
April 5, 2012 by DCM

physics
Light from the sun reaches Earth in 8.3 min. How far is the Earth from the sun? The velocity of light is 3 108 m/s. Answer in units of m
January 23, 2013 by gera-pleaseeeee

AP PYHSICS
A projectile is fired from the surface of the Earth with a speed of 150 meters per second at an angle of 45 degrees above the horizontal. If the ground is level, what is the maximum height reached by the projectile?
October 1, 2012 by Liz

PHYSICS
A projectile is fired from the surface of the Earth with a speed of 150 meters per second at an angle of 45 degrees above the horizontal. If the ground is level, what is the maximum height reached by the projectile?
October 1, 2012 by Liz

science
suggest only one best method to avoid such a collision if an earth asteroid strikes earth surface?
December 21, 2009 by sam

PHYSICS
At the Earth's surface, a projectile is launched straight up at a speed of 8.4 km/s. To what height will it rise? Ignore air resistance and the rotation of the Earth.
March 11, 2011 by Rachel

science
if earth is one astronomical unit from the sun and has a period of 1 year, approximately how far is planet X form the sun if it has a period of 26 yearS
January 11, 2011 by bob

physics
free fall on the moon is 1.62m/s2 What is the lenght of the pendulum whos period on the moon mtches the period of 1.80m long on Earth?
February 26, 2011 by pam

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