Saturday

February 28, 2015

February 28, 2015

**Recent Homework Questions About Outer Space**

Post a New Question | Current Questions

**chemistry**

lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space vehicles. what volume of carbon dioxide can be absorbed by 1.00 kg of lithium oxide at 25 degrees C and 1.00atm? Li2O(aq) +CO2(g) -> Li2Co3(s)
*Sunday, November 2, 2014 at 10:07am*

**physics **

A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the cylinder is 159 m. The moment of inertia of the station without people is 4.23 x 109 kg·m2. Suppose 299 people, with an average mass of 67.0 ...
*Sunday, November 2, 2014 at 1:04am*

**6th grade science**

we had this question on a test the measure of the amount of SPACE occupied by an object is its: weight mass area volume I put volume and it was marked wrong. The teacher said it was mass. I looked it up and still think I am correct, can you tell me which is correct? Thanks
*Thursday, October 30, 2014 at 8:22pm*

**Geometry**

A carpenter is building a staircase using his knowledge of right angles. The steps have a horizontal landing and a vertical rise causing each step to be a right triangle cut out. Depending on the purpose, steps may be adjusted by the angle of elevation which determines the ...
*Thursday, October 30, 2014 at 5:00pm*

**Physics**

A 0.50 kg hammer is taken on a space mission. What is its weight on a planet where the acceleration due to gravity is 3.8 m/s2? 0.50 kg 1.9 kg 0.50 N 1.9 N
*Thursday, October 30, 2014 at 12:26am*

**The practice of working with school age children**

One effective way to include children in developing an attractive environment is to ask them A. to describe their bedrooms. B. what color they want their car to be. C. to describe how their mom sets up the house. D. what they would do with an open space. D.
*Wednesday, October 29, 2014 at 8:27pm*

**ms. sue**

Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system&#...
*Wednesday, October 29, 2014 at 4:30pm*

**science**

Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system&#...
*Wednesday, October 29, 2014 at 4:19pm*

**Physics**

A space craft made up of two parts with masses m1 = 2.3 kg and m2 = 3.4 kg is held together by explosive bolts against a spring. The spring is compressed by 73.0 cm and has negligible mass. After the bolts are exploded m1 is found to have a speed of 3.6 m/s away from the ...
*Monday, October 27, 2014 at 5:28pm*

**Physics , Pls help**

A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the figure. As the station rotates, an astronaut in chamber A is moved 2.06 x 102 m along a circular arc. How far along a circular arc is an astronaut in chamber B moved during ...
*Saturday, October 25, 2014 at 9:46pm*

**Secondary Math **

Fill in the empty spaces to complete the puzzle. In any row, the two left spaces should multiply to equal the right-hand space. In any column, the two top spaces should multiply to equal the bottom space. ________| - 3 | ___________ 3 | -5x+1 |-15x+3 _______ | ________| 30x&...
*Friday, October 24, 2014 at 10:56pm*

**Art**

In the painting The Bridge at Argenteuil by Claude Monet how did the artist create interesting textures in this image? a. by experimenting with various brushstrokes b. by using only one color c. by concentrating on negative space d. by using no change values Is the answer A?
*Friday, October 24, 2014 at 4:40pm*

**Need Help asap for math!**

A plane is steering at S83degreesE at an air speed of 550 km/h. The wind is from N70degreesE at 85km/h. Find the ground velocity of the plane to 1 decimal space.
*Friday, October 24, 2014 at 1:01am*

**Accounting **

I need to know how to journalize this in a General Journal, but I don't know if it is required to even write down. Signed a lease agreement to rent office space for $975 per month, beginning Feb 1st. Nothing was paid today. (This happened on Jan 15)
*Thursday, October 23, 2014 at 2:08pm*

**Geometry- thanks reiny **

what's a composite space in two boxes I don't understand because there's two boxes that are together and they want the volume
*Wednesday, October 22, 2014 at 11:29pm*

**physics...damon please help**

Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail?
*Wednesday, October 22, 2014 at 2:51pm*

**physics... PLEASE HELP**

en meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail? (The linear expansion coefficient for steel is ...
*Wednesday, October 22, 2014 at 2:16pm*

**guidance**

The basis of a good child-guidance system is the caregiver's A. knowledge of child development.B. choice of equipment.C. arrangement of space in the facility.D. schedule of activities. A.
*Wednesday, October 22, 2014 at 12:28pm*

**guidance**

The basis of a good child-guidance system is the caregiver's A. knowledge of child development.B. choice of equipment.C. arrangement of space in the facility.D. schedule of activities. A.
*Tuesday, October 21, 2014 at 11:23pm*

**Physics**

Ninja goes to space! If Ninja has a weight of 83.59 N on earth and she lands on a planet that has an acceleration due to gravity of 1.44 m/s2, then what is her weight on the new planet?
*Tuesday, October 21, 2014 at 10:34pm*

**physics**

Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail?
*Tuesday, October 21, 2014 at 12:26pm*

**physics**

Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail?
*Tuesday, October 21, 2014 at 10:46am*

**Physics **

Suppose the surface (radius = r) of a cylindrical space station is rotating at 29.1 m/s to provide artificial gravity. What must be the value of r for the astronauts to weigh 1/3 of their earth weight? Don't know how to start please help.
*Monday, October 20, 2014 at 11:35pm*

**planning & implementing for the environment**

Which of these factors is most likely to determine the total number of children you can take into your facility? A. Children's needs B.Physical space available C.program philosophy D.staff members skills B.
*Monday, October 20, 2014 at 6:02pm*

**Calculus**

The number of bacteria after t hours in a controlled laboratory experiment is n=f(t). Suppose there is an unlimited amount of space and nutrients for the bacteria. Which do you think is larger, f'(5) or f'(10)? If the supply of nutrients is limited,would that affect ...
*Saturday, October 18, 2014 at 2:44pm*

**Calculus**

The number of bacteria after t hours in a controlled laboratory experiment is n=f(t). Suppose there is an unlimited amount of space and nutrients for the bacteria. Which do you think is larger, f'(5) or f'(10)? If the supply of nutrients is limited,would that affect ...
*Friday, October 17, 2014 at 10:50pm*

**physics**

A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?
*Friday, October 17, 2014 at 9:59pm*

**Physics**

You are making a trip in a space shuttle, and your friend Jimmy is in another space shuttle. He shares the same circular orbit with you, 370 km above earth. However, he is 21 km ahead of you. A) How long will it take you to catch up with your friend if you reduce your orbital ...
*Friday, October 17, 2014 at 6:13pm*

**AP Calculus**

In the answer space below, provide the larger of the two positive integers that add up to 60 and have the largest possible product.
*Thursday, October 16, 2014 at 10:37pm*

**planning & implementing for the environment**

Which of these factors is most likely to determine the total number of children you can take into your facility? A.Children's needs B. physical space available C. Program philosophy D. Staff members skills My answer is B
*Thursday, October 16, 2014 at 10:36pm*

**Physics**

A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?
*Thursday, October 16, 2014 at 9:41pm*

**Physics Help Please!!!!**

During a launch of the shuttle, fuel is being burned at a rate of 2000 kg every second. the exhaust from the burning of this fuel is expelled by the engines and can be seen during the launch. readings from instruments mounted on the space shuttle show that for the first 2 min ...
*Wednesday, October 15, 2014 at 8:23pm*

**Physics - Second Law Question**

the space shuttle engines cause an upward force of 3 x 10 ^5 N to act on the shuttle. gravity pulls down on the shuttle with a force of 1.96 x 10^5 N. what is the net force on the shuttle? what is the direction of the net force?
*Wednesday, October 15, 2014 at 8:05pm*

**Proves**

Two lines intersect to form angle 1 comma space angle 2 comma space angle 3 comma space a n d space angle 4. The measure of angle 3 is 3 times the measure of angle 1 and m angle 1 equal m angle 2. Find the measure of each angle. Label your answers.
*Tuesday, October 14, 2014 at 1:06pm*

**Art Again**

The Bridge at Argenteuil By Claude Monet How did the artist create interesting textures in this image? by experimenting with various brushstrokes (My Choice) by using only one color by concentrating on negative space by using no value changes This class is so HARD! I have ...
*Monday, October 13, 2014 at 9:37pm*

**College Physics 1401**

The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 100 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
*Monday, October 13, 2014 at 9:06pm*

**math physics**

A meteorite is a solid composed of stone and/or metal material from outer space that passes through the atmosphere and hits the earth’s surface. Find the kinetic energy of a meteorite with mass 250 kg that hits the earth at 25 km/s. Given: m=250kg v=2.5E4m/s <<< ...
*Monday, October 13, 2014 at 8:54pm*

**math physics**

A meteorite is a solid composed of stone and/or metal material from outer space that passes through the atmosphere and hits the earth’s surface. Find the kinetic energy of a meteorite with mass 250 kg that hits the earth at 25 km/s. Given: m=250kg v=2.5E4m/s <<< ...
*Monday, October 13, 2014 at 8:54pm*

**math physics**

A meteorite is a solid composed of stone and/or metal material from outer space that passes through the atmosphere and hits the earth’s surface. Find the kinetic energy of a meteorite with mass 250 kg that hits the earth at 25 km/s. Given: m=250kg v=2.5E4m/s <<< ...
*Monday, October 13, 2014 at 8:54pm*

**Differential Equations**

(a) Let S be the set of solutions y(t) to the differential equation dy/dt = -y for t> 0. With addition and scalar multiplication of elements defined in the usual way, is S a vector space? (b)Let T be the set of solution y(t) to the differential equation dy/dt = 1 - y for t...
*Monday, October 13, 2014 at 5:59pm*

**Physics **

The space shuttle, with an initial mass M = 2.41×106 kg, is launched from the surface of the earth with an initial net acceleration a = 26.1 m/s^2. The rate of fuel consumption is R = 6.90×103 kg/s. The shuttle reaches outer space with a velocity of vo = 4632. m/s...
*Monday, October 13, 2014 at 3:51pm*

**physics **

A space probe is to be put into a circular orbit of radius 42.00 km about an asteroid. At this radius the magnitude of the gravitational acceleration, normally referred to as the "gravitational field", is 1.00×10-3 meters per second squared. What speed, in ...
*Monday, October 13, 2014 at 2:34pm*

**E.L.A. PLEASE CHECK!**

The main purpose of the rising action in a short story is to A- give background information about the characters. B- describe the highest action, or turning point, of the story. C- build interest and suspense. D- answer the reader's questions. My choice is C. In "The ...
*Saturday, October 11, 2014 at 7:05pm*

**science**

A point charge of 0.5C is brought from infinity to a point A in free space.how much work is required to this?
*Friday, October 10, 2014 at 5:09pm*

**science**

two parallel plates are separated by a dielectric of thickness 2mm and a dielectric of constant 6.if the area of each plate is 40cm2 and p.d between them is 1.5kv,find the capacitance,the energy stored by the capacitor and the ratio of the capacitance if the dielectric is ...
*Friday, October 10, 2014 at 5:04pm*

**physics**

An astronaut is traveling in a space vehicle moving at 0.520c relative to the Earth. The astronaut measures her pulse rate at 74.0 beats per minute. Signals generated by the astronaut's pulse are radioed to the Earth when the vehicle is moving in a direction perpendicular...
*Friday, October 10, 2014 at 2:47pm*

**maths**

95. Suppose that 387 people will travel on a space shuttle with room for 420 people.Each compartment seats 14 people before the next compartment opens.How many people will ride in the last compartment that opened?
*Thursday, October 9, 2014 at 9:25pm*

**physics**

An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The astronaut has a mass ...
*Thursday, October 9, 2014 at 3:31pm*

**physics**

The weight of an astronaut plus his space suit on the Moon is only 270 N. A. How much do they weigh on Earth, in Newtons, assuming the acceleration due to gravity on the moon is 1.67m/s^2= 1584is this right? B. What is the mass of the astronaut and his space suit on the moon ...
*Thursday, October 9, 2014 at 1:13pm*

**Physics**

The width of the space charge region at a p-n junction is reduced by applying a voltage bias over the p-n junction. What is the correct statement on both the bias voltage and the p-n junction? The voltage is a forward bias and the diffusion of the majority charge carriers ...
*Wednesday, October 8, 2014 at 7:04pm*

**English**

I can't find on the web how to quote an article from the New York Times that appeared on the web--the catch is it has a column name This is the info: Title: Is College Worth It? Clearly New Data Say Author: David Leonhardt Column Name: The Upshot Publication date: May 27, ...
*Wednesday, October 8, 2014 at 10:38am*

**Soil Science, HELP!!**

Given the following soil properties, find the % of water by weight at soil saturation with water: Moist sample weight: 202.16 Oven dry sample weight: 197.8 Bulk Volume:118.86 Particle Volume Density: 73.73 Soil bulk density: 1.66 soil particle density: 2.68 % pore space: 38.06...
*Wednesday, October 8, 2014 at 2:21am*

**Soil Science!**

Given the following soil properties, find the % of water by weight at soil saturation with water: Moist sample weight: 202.16 Oven dry sample weight: 197.8 Bulk Volume:118.86 Particle Volume Density: 73.73 Soil bulk density: 1.66 soil particle density: 2.68 % pore space: 38.06...
*Tuesday, October 7, 2014 at 11:54pm*

**business**

Company X stocks a certain type of containers, each of which occupies 4 square feet of warehouse space. The warehouse space currently available for storing this type of container is limited to 3000 square feet. Demand for the container is 12,000 units per year. The ﬁxed...
*Friday, October 3, 2014 at 10:47pm*

**Physics**

The width of the space charge region at a p-n junction is reduced by applying a voltage bias over the p-n junction. What is the correct statement on both the bias voltage and the p-n junction? The voltage is a forward bias and the diffusion of the majority charge carriers ...
*Friday, October 3, 2014 at 12:46am*

**Science**

Explain the following quote: ... it was several weeks before an emigrant from Earth could adapt to it. On the Moon the human body had to learn a whole set of reflexes. It had, for the first time, to distinguish between mass and weight. A man who weighed one hundred eighty ...
*Thursday, October 2, 2014 at 10:45pm*

**Physics**

Having trouble on the question below. Would you do need to convert the km to meters and then multiply (4700*9.8*165500)? The first woman in space, cosmonaut Valentina Tereshkova, flew in 1963. She orbited the earth 48 times during her 70 hour 50 minute flight at an average ...
*Thursday, October 2, 2014 at 5:57pm*

**physics**

One hazard of space travel is debris left by previous missions. There are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. Calculate the force exerted by a 0.150 mg chip ...
*Wednesday, October 1, 2014 at 9:26pm*

**Basic programming principles **

What would be the answer of the following: (only type in your answer at the answer space provided) Result a = 5 b = 7 Answer = 15 Do while answer <= 47 Answer = answer + a – b a = a + 6 b = b – 1 loop end
*Wednesday, October 1, 2014 at 11:04am*

**Basic programming principles **

The user wants to display a message a fixed number of times, if you know the message and the number of times (number) it must be displayed what would be the for statement, will this be correct or incorrect ONLY indicate correct or incorrect at your answer space. for i = 1 to ...
*Wednesday, October 1, 2014 at 11:01am*

**Basic programming principles **

Piet earns R20 per hour, if he works more than 30 hours then he receives an extra R8 per hour, will the following statement be correct or incorrect (only type in correct or incorrect at your answer space)If hoursworked > 30 then Salary = salary + (hoursworked – 30) + 8
*Wednesday, October 1, 2014 at 10:48am*

**Basic programming principles **

Piet earns R20 per hour, if he works more than 30 hours then he receives an extra R8 per hour, will the following statement be correct or incorrect (only type in correct or incorrect at your answer space) If hoursworked > 30 then Salary = salary + (hoursworked – 30) + 8
*Wednesday, October 1, 2014 at 10:00am*

**Physics**

At a time when mining asteroids has become feasible, astronauts have connected a line between their 3360-kg space tug and a 6300-kg asteroid. Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are at rest, 430 m ...
*Tuesday, September 30, 2014 at 1:16pm*

**Geometry**

A swimming pool is to be constructed in the space of partially overlapping identical circles. Each of the circles has a radius of 9 m, and each passes through the center of the other. Find the area of the swimming pool.
*Sunday, September 28, 2014 at 1:57am*

**Math**

Determine whether the given equation is a circle, a point, or a contradiction (no real graph). x^2 + y^2 - 2 x - 16 y + 52 = 0 . The equation is a . (Enter "circle", "point", or "contradiction" in the answer space without quotes.)
*Wednesday, September 24, 2014 at 6:22pm*

**Child care**

6. Local, state, and provincial governments may have specific regulations that apply to the physical space in a day care center. A typical requirement in these regulations is a minimum of _______ square feet of usable play space for each child. A. 35 (B). 18 C. 10 D. 24
*Tuesday, September 23, 2014 at 7:02pm*

**Child care**

You're attempting to determine the amount of usable floor space in your day care facility. Which one of the following areas can you include in your calculation? A. Toy shelves in Classroom A B. Bathroom adjacent to Classroom A (C). Hallway in the classroom area D. Kitchen ...
*Tuesday, September 23, 2014 at 6:52pm*

**CHECK PLEASE**

11.abhor : detest 12.infraction 13.resolute 14.infringe 15.abound 11.Find the pair of words that has the same kind of relationship as the numbered pair. abscond : flee :: A. ascertain : forget B. concise : cut C. discern : hide D. abhor : detest 12.In India, mistreatment of ...
*Tuesday, September 23, 2014 at 10:03am*

**physics**

One of the methods used to train astronauts for the effects of "zero gravity" in space is to put them in a specially equipped plane which has been stripped of seats and fitted with padded walls. The pilot then takes the plane up to an altitude of typically 8600 ...
*Monday, September 22, 2014 at 11:23pm*

**Physics**

The mass of the Earth=Mg=5.97x10^24 kg. The radius of the Earth=RE= 6.38 x10^6 m. A) What is the weight of the 75 kg person? B) Determine the acceleration due to gravity aboard a space shuttle at an altitude of 400km.
*Sunday, September 21, 2014 at 9:25pm*

**MIS (java)**

Download A04.txt and copy it into a new Eclipse project named {NetID}A04. Rename (refector) {NETID}A03.java to {NETID}A04.java Modify the return type of magicEightBallIf and magicEightBallCase so they return a String instead of printing the result. Create a static method named...
*Sunday, September 21, 2014 at 8:00pm*

**math**

What does each space between the numbers represent?
*Friday, September 19, 2014 at 11:32am*

**earth space science**

What include things like temperature, precipitation and humidity
*Thursday, September 18, 2014 at 7:42pm*

**physics**

The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What isthe wavelengthofradio waves emit- ted at 97.9 MHz? Answer in units of m
*Thursday, September 18, 2014 at 7:13pm*

**Physics**

1. A cannon mounted on the back of a ship fires a 50.0 kg cannonball in the horizontal direction at a speed of 150 m/s. If the cannon and ship to which it is firmly attached have a mass of 4.00 x 103 kg and are initially at rest, what is the speed of the ship just after ...
*Thursday, September 18, 2014 at 6:20am*

**Physics**

On Earth a fit astronaut without a space suit and life support pack can leap straight up and leave the ground with an initial vertical velocity of about v1y = 2.4 m/s and rise to a height of about h = 0.24 m above the point where he first loses contact with the ground. On the ...
*Wednesday, September 17, 2014 at 8:38pm*

**Physics**

(c) On Earth a fit astronaut without a space suit and life support pack can leap straight up and leave the ground with an initial vertical velocity of about v1y = 2.4 m/s and rise to a height of about h = 0.24 m above the point where he first loses contact with the ground. On ...
*Wednesday, September 17, 2014 at 1:09pm*

**REACTION KINECTICS**

The autocatalytic reaction of A to form Q is one that accelerates with conversion. An example of this is shown below: A+Q~Q+Q However, the rate decreases at high conversion due to the depletion of reactant A. The liquid feed to the reactor contains 1 mol L-] of A and 0.1 mol L...
*Wednesday, September 17, 2014 at 12:39am*

**Physics**

1. An 80.0-kg astronaut is floating at rest a distance of 10.0 m from a spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.0 kg) and flings it into space away from the ship with a speed of 15 m/s. At what speed ...
*Tuesday, September 16, 2014 at 9:43pm*

**Curriculum**

_______ awareness describes the perceptual motor skills most closely associated with understanding how the child's own body is in space (up/down, on/off). A. Balance B. Figure-ground C. Directional D. Temporal my answer is c.
*Tuesday, September 16, 2014 at 7:43pm*

**Art**

Which element in the image The Annunciation by Jan van Eyck, creates an emphasis on the female figure? A. Form B. Texture C. Space D. Color Is the answer D?
*Monday, September 15, 2014 at 4:33pm*

**Physics**

Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration. Compare with the projected energy usage of the Earth in a decade 10^22J?
*Sunday, September 14, 2014 at 5:01pm*

**Physics**

Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration. Compare with the projected energy usage of the Earth in a decade~10^22J? well i don't know how to start the problem
*Sunday, September 14, 2014 at 4:30pm*

**Physics**

1. An 80.0-kg astronaut is floating at rest a distance of 10.0 m from a spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.0 kg) and flings it into space away from the ship with a speed of 15 m/s. At what speed ...
*Thursday, September 11, 2014 at 4:09am*

**8th grade math**

on a recent space shuttle mission the astronauts traveled 105,000 miles during the first 3 days of their mission. this distance was 5/8 of the total distance they would travel. what was the total distance the astronauts would travel?
*Tuesday, September 9, 2014 at 7:16pm*

**Math**

17 0 -4 33 -11 -24 Place the numbers from the list in the appropriate space in the second column and compute your score 1/4 point for each natural number 17, 33. Score:1/2 3 points for each odd integer 17,0,3,-11. Score 12 1/2 point for each whole number less than 20 17,0 ...
*Monday, September 8, 2014 at 5:43pm*

**Physics**

What electric field strength would store 17.5J of energy in every 9.00mm3 of space?
*Sunday, September 7, 2014 at 9:55pm*

**statistics**

Define each of the following probability terms for the scenario of determining the probability that when a couple has 3 children, they will have exactly 2 boys. Assume that boys and girls are equally likely and that the gender of any child is not influenced by the gender of ...
*Saturday, September 6, 2014 at 9:43pm*

**Physics**

For any given quadrupole, let the charges be +q, −q, +q, and −q at the corners of the square, and l be the side of the square. Calculate approximately the electric potential and the electric field far away from the quadrupole, IN THE THREE-DIMENSIONAL SPACE. You ...
*Thursday, September 4, 2014 at 3:48pm*

**algebra**

How do I get the write out the problem for : The sample space is orange, purple and white. If P(orange)=2/5 and P(purple)=3/10, what is P(white)? I have written 2/5.3/10=6/15 2/5
*Wednesday, September 3, 2014 at 6:17pm*

**geography**

This reflects some heat back into space and traps some heat near the earth.
*Monday, September 1, 2014 at 12:55am*

**Science**

A.) A runner is jogging at a steady 6.7 km/hr. When the runner is 3 km from the finish line, a bird begins flying from the runner to the finish line at 20.1 km/hr (3 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the ...
*Thursday, August 28, 2014 at 11:13pm*

**English!!!**

Identify the main idea of this paragraph: This ship is carrying kala fever serum to Group One on Woden. Their own supply was destroyed by a tornado. Group Two-the crew your brother is in-is eight thousand miles away across the Western Sea and their helicopters can't cross ...
*Wednesday, August 27, 2014 at 3:18pm*

**Physics**

02. Comic-strip hero Superman meets an asteroid in outer space and hurls it at 800 m/s, as fast as a bullet. The asteroid is a thousand times more massive than Superman, yet in the comic strip, he remains stationary after releasing the asteroid. Say, his mass is 107 kg, what ...
*Monday, August 25, 2014 at 10:20pm*

**Honors Physics**

Give some examples of applications that have resulted from work done by physicists on the exploration of space.
*Sunday, August 24, 2014 at 10:59pm*

**Math**

A cabinet has shelves that are 12 1/2 in. apart. On one shelf, Katherine stacked a CD player that is 4 5/8 in/ high on top of an amplifier that is 6 3/4 in. high. How much space was left above the CD player? I got 1 1/4; I added 6 3/4 and 4 5/8 and got 11 2/8. Then I ...
*Sunday, August 24, 2014 at 3:37pm*

**math**

I need help with just two questions. Can you help me with them please? Thank you so much! 1. School Materials, Inc., packs 1-centimeter cubes in boxes that are 10 centimeters long, 12-centimeters wide, and 8 centimeters high. A carton holds 2 dozen boxes of cubes with no space...
*Friday, August 22, 2014 at 10:57am*

**science**

In the space is there any aliens?
*Tuesday, August 19, 2014 at 9:55am*

**Environmental Science **

Answer the questions about the following processes in the space provided below. You only need to indicate a process by its number. For each question list as many processes as apply. Process 1: 6 CO2 + 6 H2O → C6H12O6 + 6 O2 Process 2: C6H12O6 + 6 O2 → H2O + 6 CO2...
*Monday, August 18, 2014 at 7:06pm*

**Physics**

It has been suggested that cylinders rotating about their long axis with dimensions 19 km long and 6.9 km 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 ...
*Thursday, August 14, 2014 at 12:28am*

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