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July 23, 2014

Homework Help: Science: Outer Space

Recent Homework Questions About Outer Space

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put was or were in the space
The girl has or have
Sunday, January 13, 2013 at 9:26pm

space science?
Which star is the densest: Antares, Spica, or Polaris?
Sunday, January 13, 2013 at 8:56pm

geometry
What do you do to figure out space in irregular shapes?
Saturday, January 12, 2013 at 11:55am

Physics
The International Space Station is 370 km above the Earth's surface (Re = 6378 km, Me = 5.98 x 10^24 kg). What is the linear velocity of the space station in m/s
Friday, January 11, 2013 at 12:44pm

physics
Spaceman Spiff's space box wights 60N. its engine exerts a +312N of force at lift-off. what is the acceleration when it lifts off
Thursday, January 10, 2013 at 10:19pm

Computer
Your computer is running a lot of services and applications when you log on that you never use. What implications can this mean for your computer? A. Unused services and applications take up valuable hard drive space. B. Your computer uses more power than it needs to. C. 32 ...
Thursday, January 10, 2013 at 12:22pm

English
The space shuttle was both a marvel and huge.
Thursday, January 10, 2013 at 8:06am

Please CHECK thanks
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
Wednesday, January 9, 2013 at 6:31pm

Somebody check this plz..and thanks.
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
Wednesday, January 9, 2013 at 4:23pm

Geometry
Check please? The path of the launching of a space shuttle can be described best as a Answer: Ray?
Wednesday, January 9, 2013 at 3:24pm

Cosmology
Which of the following phenomena is NOT a consequence of Special Relativity? - Mass-energy curves space-time - Length contraction - Time dilation - Mass can not travel faster than the speed of light
Tuesday, January 8, 2013 at 8:12pm

Will somebody help me please?
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Tuesday, January 8, 2013 at 10:37am

I need help..
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 4:48pm

Please guys. Help me out.
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 1:34pm

Science Help! I have a deadline!!
Match the following. 1. Rocky Mountain spotted fever 2. information about plants 3. eroded material 4. sun, wind, thermal 5. yellow fever and malaria 6. receives radio waves 7. major problem of underdeveloped nations 8. method of mountain formation 9. producer of oxygen a. ...
Monday, January 7, 2013 at 1:28pm

Science Somebody Help Me Please..I have a deadline
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 1:23pm

Probability
Let S={s1,s2,s3,s4} be a sample space with probability distribution P, given by  P(s1)= 0.5, P(s2)= 0.25, P(s3)= 0.125, P(s4)= 0.125. There are sixteen possible events that can be formed from the elements of 'S'. Compute the probability ...
Saturday, January 5, 2013 at 3:39am

7th grade social studies
1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles. latitude and longitude. 2. What does the theme of movement help geographers to understand? (1 point) a location's ...
Tuesday, January 1, 2013 at 8:05pm

Financial management
ABC Construction and Leasing Company are interested in investing in the residential real estate market due to a relatively low interest rate environment. The Company appointed you to be in charge of the project feasibility study. You have just visited a 35-year old, well-...
Tuesday, January 1, 2013 at 4:44pm

maths
10. A company involved in the assembly and distribution of printers in concerned with two types – laser and inkjet. Assembly of each laser printer takes 2 hours, while each inkjet printer takes 1 hour to assemble, and the staff can provide a total of 40 person-hours of ...
Friday, December 28, 2012 at 1:42am

Math
The diameter of an atom is 2.3 x 10^ -8 centimeters. How many atoms can fit in a space .003 centimeters long, without exceeding it? Please help, thank you
Sunday, December 23, 2012 at 12:52pm

Need help with ~Social Stusies!
This is a practice so it's rather extensive but it's important i get the points for it so can u please check it thx! 1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles...
Saturday, December 22, 2012 at 7:20pm

Physics
A small spaceship whose mass is 1.5x10^3 kg (include-ing an astronaut) is drifting in outer space with negligible gravitational forces acting on it. If the astronaut turns on a 10 kW laser beam, what speed will the ship attain in 1.0 day because of the momentum carried away by...
Thursday, December 20, 2012 at 8:18pm

English 8R - Essay Check (plzzz read!)
Please check my English essay to see if it's good. I need help with my conclusion. There are similarities and differences of the activities that take place in both urban and rural setting. The activities that take place in both rural and urban setting of these two pieces. ...
Tuesday, December 18, 2012 at 9:09pm

Geometry
how is the coordinate system used in navigation, archaeology, and space? please help!!! links and answers alike would be great! thanks :)
Tuesday, December 18, 2012 at 1:37pm

Math
Philip has 35 comic books. Of those comics, 2/10 take place in space. How many of Philip's comic books take place in space?
Friday, December 14, 2012 at 5:05pm

math
I have a diagram of an occupied building space within a larger building represented by 49 equal squares but no linear measures for the sides. The space is 120,000 sq ft. how can i estimate the lengths and widths of the floor space with just this information?
Thursday, December 13, 2012 at 3:23pm

english 3
Is this a parallel sentence? If so how can it be written more simpler. The space shuttle was both a marvel and huge.
Tuesday, December 11, 2012 at 2:12pm

A probability question i think
In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally upward and to the right. How many ways are there for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard? Thanks in advance for ...
Tuesday, December 11, 2012 at 11:17am

trigonometry
a space shuttle pilot flying toward the suez canal finds that the angle of depression on one end of the canal is 38.5 degree and the angle of depression to the other end is 52.75 degree. if the canal is 100.6 mi long, find the altitude of the space shuttle.
Monday, December 10, 2012 at 5:59am

CJS/250
Will someone please help me find a website to research the following questions? Write a 750- to 1,050-word paper discussing the relationship between private and public police. Is this relationship positive or negative? Provide specific examples to support your opinion. Discuss...
Sunday, December 9, 2012 at 11:32am

Physics
A rapidly changing magnetic field in any region of space induces a rapidly changing A.Magnetic field or B.Electric field? which in turn induces a rapidly changing A.Magnetic field B.Electric field?
Saturday, December 8, 2012 at 3:12pm

ECE
the child development checklist is an observation tool that? A.can only be used by one observer for the same child B.omits references to childrens emotions. C.includes space to record non-objective data. D.focuses on sequences of child development
Friday, December 7, 2012 at 2:13pm

English - ms. sue
Ms. Sue, my sister write out story here it is. On Monday she looked in her mailbox, although she had no reason to expect a letter so soon. But there it was, a small, square car. She held it in her two hands, testing its weight. It was an invitation to an exhibition of drawings...
Thursday, December 6, 2012 at 8:46pm

physics
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the speed of a 94-kg ...
Thursday, December 6, 2012 at 3:34pm

Math 8th Grade Please help
The radius of Earth is 6,371 kilometers. A space shuttle orbits 315 kilometers above the surface of Earth. The space shuttle completes 240° of a revolution around Earth in one hour. What is the average speed of the space shuttle? Choose the closest answer. Please help both...
Wednesday, December 5, 2012 at 4:59pm

Physics
Figure 18-46 shows a hydraulic lift operated by pumping fluid into the hydraulic system. The large cylinder is 40 cm in diameter, while the small tube leaving the pump is 1.7 cm in diameter. A total load of 2500 kg is raised 2.2 m at a constant rate. Neglect pressure ...
Wednesday, December 5, 2012 at 8:26am

Physics
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the speed of a 94-kg ...
Monday, December 3, 2012 at 9:42pm

science
Grapic organizer.show details that support this main ideals.thermal energy moves through solids liquid, gases and space
Monday, December 3, 2012 at 6:59pm

General Chemistry I
A sample of a compound containing only Br and O reacts with an excess of H2 to give 6.601 g of HBr and 3.919 g of H2O. What is the empirical formula of this compound? a. BrO b. BrO2 c. Br2O d. BrO3 e. None of the above I already know the answer is (e), but I am not entirely ...
Monday, December 3, 2012 at 2:50pm

physics
. The space shuttle typically orbits 400 km above the earth's surface. The earth has a mass of 5.98 × 1024 kg and a radius of 6,380 km. A) How much would a 2000 kg part for the space station weigh when it has been lifted to that orbit in the shuttle's cargo bay? ...
Monday, December 3, 2012 at 1:30am

wireless communications
what is the period of the space shuttle traveling at 250km above the earth and what is its velocity
Sunday, December 2, 2012 at 4:36pm

Physics
A 83.5 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 35.5 m behind the ship, at rest relative to the spaceship. The only way to return to the...
Sunday, December 2, 2012 at 2:19am

physics
Two astronauts, each having a mass of 78.5 kg, are connected by a 10.0-m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.50 m/s. Treating the astronauts as particles, calculate each of the following...
Saturday, December 1, 2012 at 8:47pm

Astronomy Grade 9( PLEASEEE HELP!!!!!!!!!!!!!!)
What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?
Thursday, November 29, 2012 at 11:15pm

Chemistry
Astronomers have detected hydrogen atoms in interstellar space in the n=732 energy level. Suppose an atom in this excited state emits of a photon and undergoes a transition from n=732 to n=632. How much energy does the atom lose as a result of this transition? what is the ...
Thursday, November 29, 2012 at 11:11pm

Astronomy Grade 9
What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?
Thursday, November 29, 2012 at 11:03pm

Physics, Please Help
A 2130-kg space station orbits Earth at an altitude of 455 km. Find the magnitude of the force with which the space station attracts Earth. The mass and mean radius of Earth are 5.98 × 1024 kg and 6370 km, respectively.
Thursday, November 29, 2012 at 10:56pm

space
i need help.i need info about if the sun gives the same amount of lite to both sides of the world.HELP ITS TOMMORROW
Thursday, November 29, 2012 at 9:10pm

account
Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month, and you have just been...
Wednesday, November 28, 2012 at 7:00pm

earth space
What man made or natural features can interfere with the weather radar?
Wednesday, November 28, 2012 at 5:10pm

painting
a gallon of paint will cover about 350 square feet of space. You are painting 3 halls of a school. Ignoring the doors, the halls are 10 feet tall and 125 feet long. You buy 11 gallons of paint. Did you buy enough of paint?
Wednesday, November 28, 2012 at 10:46am

Physics
A rocket of total mass 3100 is traveling in outer space with a velocity of 120 . To alter its course by 40.0, its rockets can be fired briefly in a direction perpendicular to its original motion.
Tuesday, November 27, 2012 at 3:59pm

calculus
3 letters are chosen at random from the letters P, A, N, S, O, L. What is the size of the sample space of this experiment? 12 10 20 30 35
Tuesday, November 27, 2012 at 10:20am

physics
An astronaut throws a wrench in interstellar space. How much force is required to keep the wrench moving continuously with constant velocity? Select one of the options below as your answer: A. a force equal to its weight on Earth B. a force equal to zero C. a force equal to ...
Tuesday, November 27, 2012 at 10:08am

Physics Please Help ASAP
Suppose the space shuttle is in orbit 390 km from the Earth's surface, and circles the Earth about once every 92.4 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, the gravitational acceleration at the Earth&#...
Monday, November 26, 2012 at 11:43pm

physics
During winter break, the police department in your hometown asks you to consult in the investigation of a traffic accident that occurred in a large parking lot. It seems that a car was backing out of a parking space when a pickup truck plowed straight into it from behind. The ...
Monday, November 26, 2012 at 11:36pm

Physics ASAP
Suppose the space shuttle is in orbit 390 km from the Earth's surface, and circles the Earth about once every 92.4 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, the gravitational acceleration at the Earth&#...
Monday, November 26, 2012 at 10:47pm

stats math
Suppose that two cards are randomly selected from a standard 52-card deck. What is the probability that the first card is a spade and the second card is a space if the sampling is done without replacement?
Monday, November 26, 2012 at 10:47pm

algebra
You are planning an ornamental garden that has a total area of 200 square feet. There are two sizes of ornamental plants you have chosen for your garden. Each small plant requires 2.5 square feet of space and each large plant requires 8 square feet of space. This situation can...
Monday, November 26, 2012 at 6:41pm

Earth-Space Science
what factors might affect the length of the rays after an impact?
Monday, November 19, 2012 at 10:17pm

Physics
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First he tries to throw a rope to his fellow astronaut, but the rope is too short. In a last ditch effort, the astronaut ...
Monday, November 19, 2012 at 3:26pm

physics
A crate with a mass of 110 kg glides through a space station with a speed of 2 m/s. An astronaut speeds it up by pushing on it from behind with a force of 240 N, continually pushing with this force through a distance of 4 m. The astronaut moves around to the front of the crate...
Sunday, November 18, 2012 at 10:17pm

Physics
A crate with a mass of 110 kg glides through a space station with a speed of 2 m/s. An astronaut speeds it up by pushing on it from behind with a force of 240 N, continually pushing with this force through a distance of 4 m. The astronaut moves around to the front of the crate...
Sunday, November 18, 2012 at 10:12pm

english
please proofread my contrast and comparision paper Another War for the People of the United States Although the Air Force, Navy, and Army were different in the 1940's and the 200's show that, even though technology and communication have improved, conflicts between ...
Sunday, November 18, 2012 at 9:54pm

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Sunday, November 18, 2012 at 12:19pm

Physics
Evaluate the following as true or false. If the Earth shrank in size, but all other factors remained the same, all of its satellites, including the Moon, would fly off into space. a) True b) False
Sunday, November 18, 2012 at 9:53am

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 3:01pm

posibility
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 9:13am

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 8:41am

8th Grade math - Ms. Sue please
An archaeologist has set up a dig at a newly discovered site. She and her team start excavating an area that is 36 feet by 24 feet. Because the scientists find many artifacts near the edges of this area, they decide to expand the dig. They add nine feet in all directions to ...
Friday, November 16, 2012 at 9:45pm

posibility
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Friday, November 16, 2012 at 8:35pm

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Thursday, November 15, 2012 at 8:46pm

statistics
Which of the following is NOT true with respect to the properties of probability? 0 < x < 1 P(S) = 1, where S is the sample space P(A) + P(Ac) = 0 If two events are independent then P(A and B) = P(A) * P(B)
Thursday, November 15, 2012 at 10:27am

physics
It has been suggested that rotating cylinders about 12 mi long and 4.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth?
Wednesday, November 14, 2012 at 10:48pm

Calculus
A wire 4 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total area of both figures...
Wednesday, November 14, 2012 at 7:44pm

Physics
Two astronauts, each having a mass M are connected by a length of rope of length d have a negligible mass. They are isolated in space, orbiting their center of mass at an angular speed of ù0. By pulling on the rope, one of the astronauts shortens the total distance ...
Wednesday, November 14, 2012 at 7:01pm

physics HELPP!!!!!!!
Two astronaut, as shown in the figure, each having a mass of 88.0 kg, are connected by a 10.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 6.00 m/s. By pulling on the rope, the astronauts shorten...
Wednesday, November 14, 2012 at 4:44pm

statistics
Which of the following is NOT true with respect to the properties of probability? 0 < x < 1 P(S) = 1, where S is the sample space P(A) + P(Ac) = 0 If two events are independent then P(A and B) = P(A) * P(B)
Wednesday, November 14, 2012 at 1:03pm

earth
HELP? Two students are given cubic boxes, measuring 10 cm on a side. Robert puts a single glass marble with a diameter of 10 cm in the box. Susan puts 1,000 1-cm glass marbles in her box. 1.Whose box has more empty space? Explain. 2.Whose box will be heavier? Explain. Can you ...
Wednesday, November 14, 2012 at 12:24pm

statistics
Which of the following defines the probability of an event A, or P(A)? The probability of A equals 0.50. The probability of A equals the number of possible outcomes in the sample space divided by the number of outcomes favorable to A. The probability of A equals the number of ...
Wednesday, November 14, 2012 at 10:09am

Physics
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects some gas with a ...
Tuesday, November 13, 2012 at 3:52pm

physics
Two parallel plate capacitors are identical, except that one of them is empty and the other contains a material with a dielectric constant of 4.2 in the space between the plates. The empty capacitor is connected between the terminals of an ac generator that has a fixed ...
Tuesday, November 13, 2012 at 1:33pm

physics
Radio waves transmitted through space at 3.00¡¿10 8 m/s by the Voyager spacecraft have a wavelength of 0.120 m. What is their frequency?
Tuesday, November 13, 2012 at 1:29pm

physcis
Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as particles, calculate...
Monday, November 12, 2012 at 3:43pm

physics
Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as particles, calculate...
Sunday, November 11, 2012 at 7:48pm

physics
Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as particles, calculate...
Sunday, November 11, 2012 at 7:43pm

Physics
A rotating cylinder 7.95 kilometers in radius is designed to be used as a space colony. With what period must it rotate so the residents on it feel as heavy as they would on Earth?
Sunday, November 11, 2012 at 7:35pm

physics
Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as particles, calculate...
Sunday, November 11, 2012 at 5:50pm

physics
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects some gas with a ...
Sunday, November 11, 2012 at 2:22pm

physics
The Earth’s radius is about 6380 km. The space shuttle is orbiting about 275.0 km above Earth’s surface. If the average speed of the space shuttle is 23500 km/h, find the time required for it to circle Earth.
Sunday, November 11, 2012 at 12:49pm

physics
A 7.00 104-kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 4.00 105 N over a distance of 2700 km. What is the final speed of the probe?
Sunday, November 11, 2012 at 6:42am

Physics
Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 595 rev/s. A point on one of the blades traces out a circle with a radius of 0.02 m as the blade rotates. (a) What is the magnitude of the ...
Thursday, November 8, 2012 at 4:18am

Physics
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the astronauts to weigh one-half of their earth-weight?
Thursday, November 8, 2012 at 3:18am

Physics
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the astronauts to weigh one-half of their earth-weight?
Wednesday, November 7, 2012 at 11:00pm

physics
A 2130-kg space station orbits Earth at an altitude of 455 km. Find the magnitude of the force with which the space station attracts Earth. The mass and mean radius of Earth are 5.98 × 1024 kg and 6370 km, respectively
Wednesday, November 7, 2012 at 8:32pm

physics
Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 595 rev/s. A point on one of the blades traces out a circle with a radius of 0.02 m as the blade rotates. (a) What is the magnitude of the ...
Wednesday, November 7, 2012 at 2:55pm

physics
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge. This machine consists of a long arm, to one end of which is attached a chamber in which ...
Wednesday, November 7, 2012 at 2:35pm

physics
In designing rotating space stations to provide for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness begin to appear when the rotational motion is faster than ...
Wednesday, November 7, 2012 at 2:17pm

Physics
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the astronauts to weigh one-half of their earth-weight?
Wednesday, November 7, 2012 at 2:13pm

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