Friday

July 31, 2015

July 31, 2015

**physics**

A space vehicle is coasting at a constant velocity of 22.5 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.223 m/s2 in the +x direction. After 57.5 s, the pilot ...
*Tuesday, January 31, 2012 by Alex*

**physics**

A space traveler weighs 620 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
*Monday, January 30, 2012 by Anonymous*

**physics**

While in empty space, an astronaut throws a ball at a velocity of 15 m/s. What will the velocity of the ball be after it has traveled 2 meters?
*Monday, January 30, 2012 by Anonymous*

**Alg 1**

You have 60 megabytes of space left on your portaable media player. You can choose to download song files that use 3.5 megabytes or video files that use 8 megabytes. You want to download at least 12 files. What is a graph showing the numbers of songs and video files you can ...
*Monday, January 30, 2012 by Emma*

**physical**

a rocket moves through outer space at 11,000 m/s at this rate how much time would be required to travel the distance from earth to moon which is 380,000 km
*Saturday, January 28, 2012 by cindy*

**Physics**

Explain why a rapidly spinning gyroscope, mounted in a frame that allows it to rotate in any direction independently of the frame’s rotation, tends to maintain its axis pointed in the same direction in space.
*Friday, January 27, 2012 by Pat*

**math**

A couple intends to have four children. Assume that having a boy and girl is equally likely event. a) List sample space b) Find the probability that couple has two boys and two girls; c) Find the probability that couple has at least one boy
*Monday, January 23, 2012 by juan777*

**world history**

Which of the following is NOT true about the arms race between the United States and the Soviet Union during the cold war? A. The Soviet Union created the first man-made satellite, prompting the United States to develop the National Aeronautics and Space Administration (NASA...
*Sunday, January 22, 2012 by tracy*

**physics**

It is desired to move a small, 50 kg cat in outer space by strapping a lamp, which emits 100 W of blue light to it. If the cat is free in space, and the wavelength of blue light is 470 nm, what would be the acceleration of the cat? (HINT: Consider how many photons are emitted ...
*Sunday, January 22, 2012 by Anonymous*

**Science**

If the variation in g between one's head and feet is to be less then 1/100 g, then, compared to one's height ,what should be the minimum radius of the space habitat?
*Saturday, January 21, 2012 by Jjong*

**physics**

A space vehicle is coasting at a constant velocity of 21.1 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.380 m/s2 in the +x direction. After 41.0 s, the pilot ...
*Friday, January 20, 2012 by Anonymous*

**physics**

An astronaut in his space suit has a total mass of 275 kg. His weight on the asteroid Erewhon is 0.3 N. What is the acceleration of gravity on Erewhon?
*Friday, January 20, 2012 by Bob*

**maths **

one bag contains 1 red ball,1 yellow ball, 1green ball and 1 blue ball the second bag contains 1 pink ball and 1 grey ball what is the sample space out come
*Thursday, January 19, 2012 by Sue*

**math**

A room has 750 cubic feet of space. If the room is as high as it is long and wide, what is the approximate height of the rooms ceiling?
*Wednesday, January 18, 2012 by Linda*

**math**

A room has 750 cubic feet of space. If the room is as high as it is long and wide, what is the approximate height of the rooms ceiling?
*Wednesday, January 18, 2012 by Linda*

**Precalc**

A line in space has the vector equation shown here. Fill in the blanks to find the position vector to the fixed point on the line that appears in the equation: vector r=(5+(6/11)d)vector i + (3+(9/11)d)vector j + (7+(2/11)d)vector k vector v= _____ vector i + _____ vector j + ...
*Wednesday, January 18, 2012 by Grace*

**Astronomy 1010**

The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.
*Tuesday, January 17, 2012 by Frank*

**Astronomy 1010**

The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.
*Tuesday, January 17, 2012 by Frank*

**physics**

What reaction would you get from francium and water in outer space and what if you added hydrogen to the experiment as far as being used for fuel for travel
*Tuesday, January 17, 2012 by scott*

**Physics **

A runner is jogging at a steady 8.4 km/hr. When the runner is 2.6 km from the finish line, a bird begins flying from the runner to the finish line at 42 km/hr (5 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the runner. ...
*Monday, January 16, 2012 by KGarcia*

**Physics**

An astronaut of mass 70 kg carries an empty oxygen tank of mass 14 kg. He throws the tank away from himself with a speed of 3 m/s. With what velocity does the astronaut start to move through space?
*Sunday, January 15, 2012 by Dylan*

**Liberal Arts**

Part 1: You finally made it…graduation day has arrived! Your parents are so proud that they are throwing you a HUGE party. They have rented a big tent for your graduation party just in case it rains. The inside of the tent (represented by the blue area) is set up for a ...
*Saturday, January 14, 2012 by Brittney*

**Physics**

Please show steps and thank you! An astronaut of mass 70 kg carries an empty oxygen tank of mass 14 kg. He throws the tank away from himself with a speed of 3 m/s. With what velocity does the astronaut start to move through space?
*Saturday, January 14, 2012 by Anon*

**Writing Sentences and Paragraphs**

Ok I worked real hard on this :) I hope I nailed it this time. My other question is : Is it one space after commas? Two spaces after a period ? and one space after an exclamation mark. Ok fingers crossed ! Anna, I am so happy you’ve moved back to Burlington from Bay view...
*Thursday, January 12, 2012 by Shawna*

**English **

For the poem below named the new colussus i have to define what the new world is being portrayed as but i dont understand it, if someone can help me please : Is anyone familiar with the poem the new colossus : The New Colossus Not like the brazen giant of Greek fame, With ...
*Wednesday, January 11, 2012 by Sandi*

**Physics **

An open train car moves with speed 11.3 m/s on a flat frictionless railroad track, with no engine pulling the car. It begins to rain. The rain falls straight down and begins to fill the train car. The speed of the car 1. increases. 2. decreases. 3. stays the same. A(n) 71.6 kg...
*Wednesday, January 11, 2012 by Kudo*

**guess and check sheet**

denzil list starts with the light show. Could the list start with the space first?
*Monday, January 9, 2012 by shaniah*

**physics**

A closed auditorium of volume 27100 m^3 is filled with 2210 people at the beginning of a show, and the air in the space is at a temperature of 292 K and a pressure of 1.013·10^5 Pa. If there were no ventilation, by how much would the temperature (in K) of the air rise ...
*Saturday, January 7, 2012 by linda*

**math**

A photograph is 4.5 in wide and 6 in. long. A yearbook editor has the photo reduced to fit a space 1.9 in. wide. How long is the reduced photograph?
*Friday, January 6, 2012 by kokodiva*

**Geometry**

Describe the locus of all points, in space, that are 5 cm from line p. a. a line, 5 cm from line p. b. a pair of parallel lines, each parallel to and 5 cm from line p. c. a sphere with a radius of 5 cm. d. a cylinder with a radius of 5 cm. D?
*Thursday, January 5, 2012 by Lily*

**PHYSICS**

A Few questions- please help!!! also show steps! What magnitude of force, acting for 0.025 s, will change the velocity of a 100 g ball from 30 m/s eastward to 40 m/s westward? A girl holds a 1.7 kg air rifle loosely and fires a bullet of mass 2 g. The muzzle velocity of the ...
*Wednesday, January 4, 2012 by Dyl*

**physics**

A closed auditorium of volume 27100 m^3 is filled with 2210 people at the beginning of a show, and the air in the space is at a temperature of 292 K and a pressure of 1.013·105 Pa. If there were no ventilation, by how much would the temperature (in K) of the air rise ...
*Wednesday, January 4, 2012 by maria*

**physics**

A closed auditorium of volume 27100 m^3 is filled with 2210 people at the beginning of a show, and the air in the space is at a temperature of 292 K and a pressure of 1.013·105 Pa. If there were no ventilation, by how much would the temperature (in K) of the air rise ...
*Tuesday, January 3, 2012 by maria*

**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?
*Tuesday, January 3, 2012 by Vivek*

**physics**

A closed auditorium of volume 27100 m^3 is filled with 2210 people at the beginning of a show, and the air in the space is at a temperature of 292 K and a pressure of 1.013·10^5 Pa. If there were no ventilation, by how much would the temperature (in K) of the air rise ...
*Sunday, January 1, 2012 by maria*

**Physics**

The De-orbit Burn The Shuttle must reduce its velocity at a pre-calculated point in its orbit in order to return to Earth. In order to reduce the velocity and change the orbit of the Shuttle, a maneuver called the de-orbit burn is performed. For this maneuver, the Shuttle is ...
*Wednesday, December 28, 2011 by Rory*

**Question **

What is meant in the Illustrators Contest rules by “three different subjects”? Three of the same subject would be 3 illustrations of dragons. Examples of three different subjects could be dragons, space ships and an alien planet. What do they mean??? I'm a bit ...
*Tuesday, December 27, 2011 by Lauren *

**Physics**

Assume that the Starship Enterprise is moving through space at the speed of light. Calculate how much kinetic energy the ship has at this speed. The Enterprise has a mass of 1*10^6kg. Now imagine that Captain Kirk wants to bring the ship to a complete stop in a distance of ...
*Monday, December 19, 2011 by Jacob*

**kv khurda**

an artificial satellite is orbiting the earth. A bomb is released from the satellite. The bomb will (a)explode due to the heat generated by the friction of air (b)fall freely on the earth (c)escape into outer space (d)orbit the earth along with the satellite
*Saturday, December 17, 2011 by suman*

**geometry**

A parking lot has seventy-three parking spaces numbered from 1 to 73. There are no cars in the parking lot when Jillian pulls in and randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to 27?
*Thursday, December 15, 2011 by Janelle*

**physics**

An early major objection to the idea that Earth is spinning on its axis was that Earth would turn so fast at the equator that people would be thrown into space. Given : radius earth = 6.37 × 10^6 m , mass earth = 5.98 × 10^24 kg , radius moon = 1.74 × 10^6 m...
*Thursday, December 15, 2011 by Anonymous*

**social studies**

Where can I find facts about: *Johnson Space Center aka NASA [Houston] *Grand Canyon *Statue of Liberty
*Wednesday, December 14, 2011 by liz*

**Medical Billing**

I have tried to read and understand this question, however I just had eye surgery,and to be honest, I just can not see to read the code book.~~~ OPERATIVE REPORT PREOPERATIVE DIAGNOSIS: Morbid obesity. POSTOPERATIVE DIAGNOSIS: Same. PROCEDURES: 1. Laparoscopic Roux...
*Wednesday, December 14, 2011 by T Simmons*

**Physical Science**

A 75 kg astronaut in space pushes against a 200 kg navil. when the astronaut lets go of the anvil pushing it:
*Tuesday, December 13, 2011 by brandi*

**Geometry**

The Design for a Mural is 16 in. Wide and 9 in High. What are the Dimensions of the largest possible complete mural that can be painted on a wall 24 ft wide by 14 ft wide? And Can you Please Explain. I understood how to do it. but which height or width will fill the space ...
*Monday, December 12, 2011 by Angel*

**algebra**

A flying saucer filled with space aliens landed in my front yard!After the entire crew had filled out of their spaceship, I happened to count their heads and feet. I saw a total of 91 heads and 124 feet. It was clear that their leader was a purple creature with three heads and...
*Monday, December 12, 2011 by Linda*

**English**

I urgently need you to revise this paragraph on dinosaurs. I need to simplify it using synonyms. 1) Whatever killed off (synonym??) the dinosaurs almost certainly had a bearing (I need a proper synonym) on the rest of the mass extinction, which was on a global scale and ...
*Saturday, December 10, 2011 by Henry2*

**Science**

The amount of space something occupies is its volume. Volume can be measured using a A. triple beam balance B. graduated cylinder C. spring scale D. meter stick I think its B.
*Thursday, December 8, 2011 by Jaycee*

**Physics**

The space shuttle has a weight 2.00 x 10^7 N. The shuttle is accelerated upward at a rate of 5.50 m/s^2. What is the mass of the shuttle? What is the thrust (force) of the combined engines? What is the magnitude of the net force applied to the space shuttle?
*Wednesday, December 7, 2011 by Hannah*

**physics**

A rocket in outer space with a velocity of 12,000 m/s. How long will it take to travel 3,000,000 meters?
*Wednesday, December 7, 2011 by Rose*

**Physics**

A 115 kg astronaut on a space walk pushes against her space capsule that has mass 2250 kg. The astronaut accelerates 1.50 m/s2, 0°. (a) Find the force exerted on the astronaut. (b) Find the force exerted on the capsule. (c) Find the acceleration of the capsule.
*Monday, December 5, 2011 by Bree*

**Math**

A model of the ocean floor takes up 2/5 of the space in an aquarium. if 3/8 of the model is coral, what fraction of the space in the aquarium is taken by coral?
*Monday, December 5, 2011 by Stevie*

**science**

Earths mass is 6 x 10^24kg and its radius is 6.38 x 10^6m (6380 km ). Use the inverse-square law to show that in space-shuttle territory, 200 km above the earths surface the force of gravity on a shuttle is about 94% of that at the earths surface.
*Monday, December 5, 2011 by hannah*

**chemistry**

Which is not a true statement concerning electromagnetic radiation? It travels through space at 3.0 x 1010 cm/s. It travels in a straight line. It has the fastest speed possible in nature. The sun is a source of it.
*Thursday, December 1, 2011 by katelyn*

**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 103-kg ...
*Wednesday, November 30, 2011 by Jordan*

**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 103-kg ...
*Wednesday, November 30, 2011 by Matt*

**Physics**

Engineers are trying to create artificial "gravity" in a ring-shaped space station by spinning it like a centrifuge. The ring is 100m in radius. How quickly must the space station turn in order to give the astronauts inside it weights equal to their weights at the ...
*Sunday, November 27, 2011 by Hayli*

**Physics**

Engineers are trying to create artificial "gravity" in a ring-shaped space station by spinning it like a centrifuge. The ring is 100m in radius. How quickly must the space station turn in order to give the astronauts inside it weights equal to their weights at the ...
*Sunday, November 27, 2011 by Hayli*

**space**

I'm doing a solar system project for school. The problem I'm facing is that I'm am doing every two feet is 10 astronomical units, but how many 1/8 inch's is one astronomical unit?
*Sunday, November 27, 2011 by kyle*

**ALGEBRA**

Many states offer personalized license plates. California, for example, allows personalized plates with seven spaces for numerals or letters, or one of the following four symbols. What is the total number of license plates possible using this counting scheme? (Assume that each...
*Saturday, November 26, 2011 by MONICA*

**Spanish Preterit for Mía**

EL PRETERITO: THE PRETERIT OF REGULAR VERBS: -AR: hablar = to speak yo hablé = I spoke, I DID speak tú hablaste él/ella/usted habló nosotros/nosotras hablamos vosotros/vosotras hablasteis ellos/ellas/ustedes hablaron endings: é, aste, ó...
*Saturday, November 26, 2011 by SraJMcGin*

**Physics help please**

The space shuttle orbits at a distance of 335 km above the surface of the Earth. What is the gravitational force (in N) on a 1.0 kg sphere inside the space shuttle. Assume that the mass of the Earth is 5.98x1024 kg and the radius of the Earth is 6370 km Compare (as %) the ...
*Friday, November 25, 2011 by ...*

**physics**

A 2.0 nF parallel plate capacitor with a sheet of mylar (k= 3.1) filling the space between the plates is charged to a potential difference of 90 V and is them disconnected. How much work would be required to completely remove the sheet of mylar from the space between the two ...
*Tuesday, November 22, 2011 by Jam*

**geometry**

h ttp://img64.imageshack.us/img64/574/plotformula.jpg (please remove the space in the link above, because I could not post the full problem) I think that I should use the following: a<b+c ,b<a+c ,c<a+b or the inequality of the means, but I have no idea how to ...
*Tuesday, November 22, 2011 by danielle*

**socials**

I not find the poster online either but teacher gave us picture and i upload it on internet. i give link down below. i leave space in there it not allow me to post link so i leave space in there. last poster is the : If they over-run canada your money'll be useless... it ...
*Monday, November 21, 2011 by Mohammad*

**math problem**

please help me solve You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 ...
*Monday, November 21, 2011 by Lavern*

**Chemistry**

The space shuttle uses fuel cells( AFC's) to produce electricity . In these fuel cells,O2 reacts with water and electrons to produce OH- ioins travel to the other electrode where they react with H2 to release electrons and produce more water. Based on this information,...
*Sunday, November 20, 2011 by Devin Boutte*

**finiance**

WM3 is a company who is looking to expand. There is a potential deal with a furniture company but MW3 is not sure if they should take this deal. The furniture company is offering a 4 year contract for 100,000 units per year at a fixed price of $55.50 per unit. WM3 has ...
*Sunday, November 20, 2011 by Ky*

**PLEASE HELP-PHYSICS HW**

A 130 kg astronaut (including space suit) acquires a speed of 2.80 m/s by pushing off with his legs from an 2000 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the push. If the push lasts...
*Sunday, November 20, 2011 by m*

**Math problem**

1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a.What ...
*Sunday, November 20, 2011 by Avery*

**Linear Algebra**

Find the basis for the following vector space. Please state the dimension of the vector space. S consists of all x in R3 such that x is orthogonal to n=(2,3,2)
*Sunday, November 20, 2011 by Simon*

**gravity**

You are an astronaut in the space shuttle pursuing a satellite in need of repair. You are in a circular orbit of the same radius as the satellite (450 km above the Earth), but 24 km behind it. How long will it take to overtake the satellite if you reduce your orbital radius by...
*Saturday, November 19, 2011 by mje*

**earth**

Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass m and radius of orbit L. The satellites fire rockets that provide the force needed to maintain a circular orbit around the space station. The ...
*Saturday, November 19, 2011 by mje*

**algebra**

1. Which expression belongs in the space? |--------------- x-2 |x^2 + 7x - 18 -(x^2-2x) -------- 18 a.5x - 18 b.5x + 18 c.9x - 18 d. 9x + 18
*Thursday, November 17, 2011 by Secretai*

**math**

how many different tetrahedrons are determined by ______ given no four are coplanar? 4 points in space 9 points in space 15 points in space n points in space
*Thursday, November 17, 2011 by Cody*

**physics**

Using Newton's Law of Universal Gravitation, compare the weight of a 68.1 kg astronaut on the surface of the earth to the gravitational pull of the Earth on the same astronaut when she is on the International Space Station. Constants: Average altitude of the ISS above the ...
*Wednesday, November 16, 2011 by Maria*

**physics**

Using Newton's Law of Universal Gravitation, compare the weight of a 68.1 kg astronaut on the surface of the earth to the gravitational pull of the Earth on the same astronaut when she is on the International Space Station. Constants: Average altitude of the ISS above the ...
*Wednesday, November 16, 2011 by Maria*

**physics**

A box and its contents have a total mass M = 9 kg. A string passes through a hole in the box, and you pull on the string with a constant force F = 77 N (this is in outer space; there are no other forces acting). (a) Initially the speed of the box was vi = 5 m/s. After the box ...
*Wednesday, November 16, 2011 by Anonymous*

**Algerbra1**

1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a.What ...
*Wednesday, November 16, 2011 by Connie*

**Physics**

Which electromagnetic radiation can be used in space to detect low temperatures? Gamma Rays Infra Red Ultra Violet Or any of the others?
*Wednesday, November 16, 2011 by Jim*

**Science**

Which electromagnetic radiation can be used in space to detect low temperatures? Gamma Rays Infra Red Ultra Violet Or any of the others?
*Wednesday, November 16, 2011 by Jim*

**Physics**

What exerts the force obn a rocket in outer space to make it move forward?
*Tuesday, November 15, 2011 by Shari*

**algebra**

Explain in your own words what it means for an equation to model a real world situation an give an example. -it is right to say that when given a problem, we want to identify the quality of the problem we want to find, translate form word to algebra, and make up an equation ...
*Tuesday, November 15, 2011 by lan*

**physics**

A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 1/160 of its mass as exhaust gas and has an acceleration of 15.1 m/s^2.What is the speed v_gas of the exhaust gas relative to the rocket?
*Monday, November 14, 2011 by paul*

**Physics**

It has been suggested that rotating cylinders about 9 mi long and 5.1 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? ? rad/s
*Monday, November 14, 2011 by Anonymous*

**physics**

It has been suggested that rotating cylinders about 9 mi long and 5.1 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?
*Monday, November 14, 2011 by Anonymous*

**Chemistry**

An estimation of the radius of a lead atom: a. You are given a cube of lead that is 1.000 em on each side. The density of lead is 11.35 g/cm3. How many atoms of lead are contained in the sample. b. Atoms are spherical; therefore, the lead atoms in this sample cannot fill all ...
*Sunday, November 13, 2011 by Arnol*

**Science/Physics**

An astronaut is about 20 m from her space station when the rocket thrusters run out of fuel. If she is carrying a few tools and can remove the rocket thruster, what should she do to get back to the space station? Explain reasoning.
*Sunday, November 13, 2011 by Ann*

**Learning Log**

Space betweenyour fingers time capsule
*Thursday, November 10, 2011 by Viji*

**statistics**

space shuttle astronauts each consume an average of 3000 calories per day. one meal normally consists of a main dish, a vegetable dish, and 2 different desserts. the astronauts can choose from 11 man dishes, 8 vegetable dishes, and 12 desserts. how many different meals are ...
*Wednesday, November 9, 2011 by kerri*

**CHEM AP please help!!**

Why does the octet rule not hold for many compounds containing elements in the third row of the periodic table and beyond? (Select all that apply.) 1. Atoms of elements in the third period are less subject to destabilization from additional electron-electron repulsions. 2. ...
*Monday, November 7, 2011 by kali maa*

**working with school-age children**

Which of the following is one of the steps for successful inclusion? 1) Use every inch of space in designated areas. 2)Organize all children in an assigned, designated area. 3) Modify appropriate environments and curriculum. 4)Provide every program requested.
*Monday, November 7, 2011 by susan*

**Physics**

The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3. (a) What is the thickness of the Martian atmosphere, assuming the boundary between atmosphere and outer space to be the point where atmospheric pressure drops to 0.01% ...
*Monday, November 7, 2011 by mymi*

**$$college algebra$$**

Consider g(x) = -2x2 + 36x - 142 for x > 9. Find g-1(12). If this value does not exist, the type DNE in the space provided.
*Sunday, November 6, 2011 by Brianna *

**Physics**

There are two particles (1 and 2) that are moving around in space. The force that particle 2 exerts on 1 is given by: F21(t)=Fx*e^−(t/T)i^ + Fy*sin(2πt/T) j^ Where the parameters have the values: Fx = 13.4 N Fy = -84.2 N T = 74 s tf = 140.46 s Find the average force...
*Sunday, November 6, 2011 by Jerry*

**college algebra**

Let g(x) = 0.5x + 18. Write the rule for g-1(x). Then, evaluate g-1(x) at x = 20. Enter this result in the space provided.
*Friday, November 4, 2011 by brianna*

**Math**

barry puts TVs on a 15-foot shelf in his electronics store. He allows 2 1/2 feet of space for each TV. He will be able to put 5.5 TVs on the shelf. Is this reasonable or not
*Wednesday, November 2, 2011 by kev*

**PHYSICS**

An astronaut of mass 78.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.500 m/s. With the booster rockets no ...
*Wednesday, November 2, 2011 by EDDY*

**statistics**

6. You read in a book about bridge that the probability that each of the four players is dealt exactly one ace is about 0.11. This means that A. in every 100 bridge deals, each player has one ace exactly 11 times. B. in one million bridge deals, the number of deals on which ...
*Tuesday, November 1, 2011 by ron *

**physics**

A 1000kg rocket is moving forward at 10m/s in space. A 10,000N force is applied to the rocket for one second from behind. How fast is the rocket now traveling? a. 0m/s b. 10m/s c. 15m/s d. 20m/s
*Tuesday, November 1, 2011 by Claudia*