Thursday

June 30, 2016
**physics**

An astronaut (mass of 100 kg, with equipment) is headed back to her space station at a speed of 0.750 m/s but at the wrong angle. To correct her direction, she fires rockets from her backpack at right angles to her motion for a brief time. These directional rockets exert a ...
*Wednesday, November 19, 2014 by mary*

**Art**

Sketchbook 7 by Vivian W. Which element did this artist use most to emphasize her original creation of a cotton candy creature? A. negative space B. color C. line D. texture Is the answer C?
*Tuesday, November 18, 2014 by Callie*

**Algebra**

The Hubble Space Telescope can see stars and galaxies where brightness is 1/50 of the faintest objects now observable using ground-based telescopes. Use the fact that the brightness of a point source, such as a star, varies inversely as the square of its distance from an ...
*Tuesday, November 18, 2014 by Mickey*

**physics**

To create artificial gravity, the space station is rotating at a rate of 0.80 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.80. Each chamber A simulates an acceleration due to gravity of 10.0 m/s2.
*Sunday, November 16, 2014 by web*

**Art**

Are my answers right? Which of the following is a convention Chinese artist Shen Zhou used in his brush paintings? He used only black ink to emphasize expressive brushstrokes. He painted several seated Buddha in the background. He painted flat, realistic figures to reflect ...
*Sunday, November 16, 2014 by Amy*

**Crime Scene Sketching **

you will have the opportunity to practice sketching a room. Take measurements of a small room to which you have access. Plot out the simple floor plan. Review the methods of measurement and select one for this project. Pick an object in your room and use your chosen method to...
*Sunday, November 16, 2014 by Stephanie*

**Math **

Sally has 3 planting boxes . Each box is 4 feet wide and 8 feet long. How much space does she have altogether? Is it 3x4 + 3x8= 36 total feet?
*Wednesday, November 12, 2014 by Al*

**sci i think its b**

A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an object a person at the top...
*Wednesday, November 12, 2014 by somebody help i am new*

**Physics**

an astronaut of mass 150 kg is stranded 100 m from the international space station and is at rest relative to it he decides to throw his movie camera of mass 4.5 kg away at a speed of 10 m/s he has 5 minutes of air left in his tank does he make it back in time?
*Wednesday, November 12, 2014 by Anonymous*

**physics**

A space station shaped like a giant wheel has a radius of 1.00 x 10^2 m and a moment of inertia of 5.00 x 10^8 kgm^2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1.0g. When 120 people move to the center ...
*Tuesday, November 11, 2014 by David*

**Physics- spring constant **

Astronauts are in space so there is no gravity, but they wish to weight themselves. The spring constant is 265 N/m. The question shows a graph; the y is the position in meters while the x is the seconds. I do not wish for an answer, but the way in which i'm supposed to ...
*Tuesday, November 11, 2014 by Chris*

**Math**

how much space do sleeping quarters take if the sleeping quarters are for 100 guests and average density of the sleeping quarters are 15kg/m2
*Monday, November 10, 2014 by Anonymous*

**Physics**

A space vehicle is orbiting Earth in a circular orbit with a radius of 10,300,000m. What is the minimum increase in speed that is needed for the vehicle to escape Earth's gravitational field? The mass of the Earth is 5.97x10^24 kg and G = 6.67x10^-11 N*m^2/kg^2. The answer...
*Monday, November 10, 2014 by Joe*

**math**

which would be better for determining the sample space, a tree diagram or an area model? Justify your answer
*Saturday, November 8, 2014 by susanna*

**geometry**

Eddie is arguing with tana about the probability of flipping three coins. They decided to flip a penny, nickel, and a dime. Which would be better determining the sample space, a tree diagram or an area model? Justify your answer.
*Saturday, November 8, 2014 by lily*

**Physics**

What is the apparent weight of a 70-kg astronaut 3800 km from the center of the earth's moon in a space vehicle moving at constant velocity and acceleration toward the moon at 2.9m/s^2? State the direction in each case.
*Thursday, November 6, 2014 by Kathlyn*

**Calculus**

When estimating distances from a table of velocity data, it is not necessary that the time intervals are equally spaced. After a space ship is launched, the following velocity data is obtained. Use these data to estimate the height above the Earth's surface at 120 seconds...
*Thursday, November 6, 2014 by John James*

**physics**

A space station Radar locates sattelites A and B at a certain moment: A_0=(a_1,0,1^3), B_0=(0,b_2,b_3) the space station is located at (0,0,0) and the sattelites moves with a uniform velocity related to the space station: v_A=(V_A,0,0), v_B=(V_B,V_B,0) what is the minimal ...
*Sunday, November 2, 2014 by Adam*

**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 by !*

**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 by S*

**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 by E6*

**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 by Dana*

**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 by Anonymous*

**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 by Amanda*

**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 by could you check these*

**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 by could you check these*

**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 by Isabelle*

**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 by S*

**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 by Rose Nicol *

**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 by Girl Friday*

**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 by Tina*

**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 by Kate*

**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 by Elizebeth taylor*

**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 by Maranda*

**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 by Maranda*

**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 by Amanda*

**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 by Amanda*

**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 by Lexi*

**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 by Jason*

**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 by Jason*

**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 by S*

**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 by Amanda*

**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 by Anonymous*

**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 by Anonymous*

**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 by Ashton*

**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 by Ashlea*

**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 by Alyssa*

**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 by Amanda*

**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 by Ashton*

**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 by Jim*

**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 by Tom*

**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 by Anonymous*

**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 by Michael*

**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 by Tenesha*

**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 by Jay*

**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 by Jay*

**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 by Jay*

**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 by Cam*

**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 by bill*

**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 by bill*

**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 by Alexandria*

**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 by benjamin*

**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 by benjamin*

**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 by sara*

**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 by thomas*

**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 by Johnny*

**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 by David*

**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 by qwerty*

**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 by Shelly*

**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 by Trenton*

**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 by Udyr*

**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 by business*

**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 by qwerty*

**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 by Kimmy*

**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 by brandi*

**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 by mathew*

**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 by Leon*

**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 by Leon*

**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 by Leon*

**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 by Mpho *

**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 by Bonmoun*

**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 by Carl*

**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 by irina*

**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 by Desiree*

**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 by Desiree*

**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 by Matt*

**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 by afia*

**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 by Jason*

**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 by Mohammad*

**math**

What does each space between the numbers represent?
*Friday, September 19, 2014 by vincenzo*

**earth space science**

What include things like temperature, precipitation and humidity
*Thursday, September 18, 2014 by lyric*

**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 by annie*

**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 by Ashley*

**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 by Alexandra *

**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 by Alexandra *

**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 by BALOCH*

**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 by Ryzza*

**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 by Daniela*

**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 by Gwen *

**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 by Derick*