Friday

August 22, 2014

August 22, 2014

**Recent Homework Questions About Outer Space**

Post a New Question | Current Questions

**physics**

A space aircraft is launched straight up. The aircraft motor provides a constant acceleration for 10seconds, then the motor stops. The aircraft's altitude 15seconds after launch is 2km. Ignore air friction. Determine (i) the acceleration, (ii)the maximum speed reached in ...
*Tuesday, April 2, 2013 at 9:05am*

**machanics**

A space aircraft is launched straight up.The aircraft motor provides a constant acceleration for 10 seconds,then the motor stops.The aircraft's altitude 15 seconds after launch is 2 km.ignore air friction .what is the acceleration,maximum speed reached in km/h and the ...
*Tuesday, April 2, 2013 at 6:21am*

**physics**

A test charge of +3.00 10-6 C experiences a downward electrostatic force of 15 N when placed at a certain point in space. What are the magnitude and direction of the electric field at this point?
*Monday, April 1, 2013 at 3:12pm*

**algebra**

y= -x^2-12x+28 A painter can use the formula A=2/3bh to estimate the area of space under the parabola. Calculate area in square ft under each arch ~ if there are 8 arches to be painted how many square ft must be painted ~ if 1 gallon paints 200 square ft , how many gallons ...
*Sunday, March 31, 2013 at 8:30pm*

**Math**

How many cartons measuring 3 feet by 2 feet by 6 inches can be stored in a space that is 15 feet by 9 feet by 24 feet. Assume no space is wasted. Explain your answer.
*Friday, March 29, 2013 at 11:28pm*

**Physics**

Two astronauts, each having a mass of 61.9 kg, are connected by a 14.7 m rope of negligible mass. They are isolated in space, orbiting their center of mass at speeds of 5.57 m/s. Calculate the magnitude of the initial angular momentum of the system by treating the astronauts ...
*Wednesday, March 27, 2013 at 10:47pm*

**Physics**

At the train station, you notice a large horizontal spring at the end of the track where the train comes in. This is a safety device to stop the train so that it will not plow through the station if the engineer misjudges the stopping distance. While waiting, you wonder what ...
*Tuesday, March 26, 2013 at 7:43pm*

**Physics**

At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide the 'puck' at ...
*Tuesday, March 26, 2013 at 7:42pm*

**Physics**

Your artist friend's new work is a simple, high-impact kinetic sculpture called 'Destruction.' A 200-kg steel block is hung from the ceiling by an 8-foot-long rope. A second rope is attached to the side of the block. The other end of this second rope is attached to...
*Tuesday, March 26, 2013 at 7:38pm*

**physics**

As part of a fundraiser, you want the new dean to bungee jump from a crane. The jump will be made from 44 m above a 2.5 m deep pool of Jello. A 30 m long bungee cord would be attached to the dean's ankle. You must convince the dean that your plan is safe for a person of ...
*Tuesday, March 26, 2013 at 7:37pm*

**Science help**

Which of the following technologies is a result of space research and development? A.improved pacemakers B. equipment to allow police to change traffic signals C. cochlear implants to help deaf people hear D. all of the above
*Monday, March 25, 2013 at 3:30pm*

**Chemistry**

Your space ship has docked at a space station above Mars. The temperature inside the space station is a carefully controlled 24oC at a pressure of 689 mm Hg. A balloon with a volume of 426 ml drifts into the airlock where the temperature is -88oC and the pressure is 0.160 atm...
*Monday, March 25, 2013 at 2:37pm*

**english**

Choose an essay or a short story to read. Then answer the following questions in the space provided. 10.What is the title of the story essay? 11.Who wrote it? 12.Whom is the story about? (Identify the main characters [or, if an essay, the subject discussed].) 13.hat happens in...
*Monday, March 25, 2013 at 2:17pm*

**science**

What will eventually occur if in deep space an astronaut's wrench is outside the spacecraft moving with the same velocity as the spacecraft?
*Sunday, March 24, 2013 at 6:18pm*

**Earth and Space Science**

which is closer to earth a moon or galaxy?
*Saturday, March 23, 2013 at 10:09pm*

**Earth and Space Science**

Put the following astronomical bodies in order from largest to smallest: a. Universe b. Galaxy c. Moon d. Planet e. Solar System f. Comet
*Saturday, March 23, 2013 at 9:47pm*

**meaning**

Jacy taught dancing and demonstarted ballet postions. What does position refer to in that sentence? A] dances for ballet B] the space occupied by something C] particular stances in ballet I think it's D?
*Thursday, March 21, 2013 at 8:29pm*

**Math**

Find the sample space. a Bag contains 4 marbles: one each of red, blue, green and violet. Two marbles are drawn from the bag. assume that the first marble is not put in the bag before drawing the second marblle
*Thursday, March 21, 2013 at 3:51pm*

**Physics**

Three Point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. As the drawing shows(a) The charge at any one corner experiences forces from the charges at the other corners. Do the individual ...
*Tuesday, March 19, 2013 at 7:21am*

**Physics**

A test charge of +3.00 10-6 C experiences a downward electrostatic force of 11 N when placed at a certain point in space. What are the magnitude and direction of the electric field at this point?
*Monday, March 18, 2013 at 3:23pm*

**Math**

Given that a sample space is discrete if it contains either a finite number of points or a countably infinite nunber of points and a sample space is continuous if it contains uncountable number of points 1) if two distinct points on a circle radius 'r' are chosen at ...
*Sunday, March 17, 2013 at 5:56am*

**Astronomy**

Mergers of two supermassive black holes will be major sources for observations of gravitational waves in the future. What do gravitational detectors aim to detect? -Tiny shifts of fixed objects due to the rippling of space. -Sound waves carried by cosmic ray particles. -Tiny ...
*Saturday, March 16, 2013 at 1:39am*

**Physics 1**

An astronaut in her space suit has a total mass of m1 = 76.9 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she's on a spacewalk. Initially at rest with respect to her spacecraft, she throws her oxygen tank of mass m2 = 12....
*Thursday, March 14, 2013 at 5:51pm*

**early childhood**

which of the following is best suited to a formative assessment of progress 1. muscular strength snd endurance 2. body fat analysis 3. flexibility 4. qwareness of self and space
*Wednesday, March 13, 2013 at 8:31pm*

**maths (statistics)**

A coin is constructd such dt tail cn appear 4 time as likely as d head appear. Dis coin is tossd wit a fair die. Define X= no of head on coin + no of head on die. 1. Wryt out d sample space 2. Whts d prob. Of X is 14. 3. Pr(X<=10) 4. Pr(X>=14)
*Wednesday, March 13, 2013 at 5:10pm*

**English II**

The following paragraph is quite sketchy. Provide additional support for the topic sentence, and revise the whole paragraph so that you can answer yes to each of the questions in Lesson 6. Type the paragraph in the space below. Newspapers are great. Many people think ...
*Wednesday, March 13, 2013 at 1:19pm*

**English II**

In the space provided, write a paragraph of cause and effect. You may use one of the topics below or one of your own choosing. Mention at least three causes and their three effects. -friendship as a two-way street -television and preschoolers -vitamin deficiency in teenagers -...
*Wednesday, March 13, 2013 at 1:18pm*

**English II**

Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the revised paragraph in the space provided. 1. Does the paragraph have a clear purpose, and does each sentence contribute to that purpose? 2. Is every ...
*Wednesday, March 13, 2013 at 1:06pm*

**Physics**

A certain coaxial cable consists of a copper wire, radius a , surrounded by a concentric copper tube of inner radius c . The space between is partially filled (from b out to c ) with material of dielectric constant K. The goal of this problem is to find the capacitance per ...
*Wednesday, March 13, 2013 at 12:10am*

**Math**

Ms Washington buy a refrigerator that is 6 feet high, 3feet deep and 4 feet wide ,how many floor space does she need to fit the refrigerator
*Tuesday, March 12, 2013 at 7:06pm*

**English**

The space shuttle was both a marvel and huge. Parallel Sentencce?....
*Tuesday, March 12, 2013 at 4:22pm*

**Statistics**

*Give all probabilities to two decimal places. Three daily newspapers are published in a large city. Suppose we have the following facts about the people in the city: 60% read Newspaper A. 34% read Newspaper C. 72% read Newspaper A or Newspaper B. 18% read Newspaper A and B. ...
*Tuesday, March 12, 2013 at 1:09pm*

**Statistics**

A box contains five numbered balls (1,2,2,3 and 4). We will randomly select two balls from the box (without replacement). (a) The outcome of interest is the number on each of the two balls we select. List the complete sample space of outcomes. (b) What is the probability of ...
*Tuesday, March 12, 2013 at 1:06pm*

**Quantum M.**

Why "In Hilbert Space noone can hear you scream"?
*Sunday, March 10, 2013 at 9:37am*

**physics**

An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. (a) What is the electric field energy density at P? (b) A parallel-plate capacitor whose plates have area 0.110 m2 has a uniform electric field between its plates with the same ...
*Friday, March 8, 2013 at 4:48pm*

**Algebra**

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
*Thursday, March 7, 2013 at 10:49pm*

**Algebra**

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
*Thursday, March 7, 2013 at 10:49pm*

**Algebra**

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
*Thursday, March 7, 2013 at 10:49pm*

**Physics-VASTS**

The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE camera contains the ...
*Thursday, March 7, 2013 at 4:29pm*

**Economics**

I have to do a housing project for economincs class. I have to pick a house. It has to include what kind of house it is and the square footage of the house and the square feet of the living space. Where would I search for this information
*Wednesday, March 6, 2013 at 9:59am*

**physics **

The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What is the wavelength of visible light emitted at 7.2 × 108 MHz? Answer in units of m
*Tuesday, March 5, 2013 at 7:02pm*

**Physics**

Point charges Q1 ,Q2 , and Q3 reside on three corners of a square with sides of 1m ; the distance from Q2 to P3 is 2m (see diagram). (a) What is the electric potential,V , at P1 ? (Normalize the potential to be zero at infinity and give your answers in Volts). incorrect What ...
*Tuesday, March 5, 2013 at 9:02am*

**math**

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
*Tuesday, March 5, 2013 at 8:51am*

**logic**

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole, then there would be ...
*Tuesday, March 5, 2013 at 12:32am*

**Physics**

Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are repulsive. Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the elemental ...
*Sunday, March 3, 2013 at 10:01am*

**calculus**

Suppose you have 400 meters of fencing and you wish to enclose a rectangular space with two parallel partitions: What is the maximum total area of the enclosed space, in square meters?
*Saturday, March 2, 2013 at 9:41pm*

**Physics**

A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from diﬀerent stars and planets
*Friday, March 1, 2013 at 8:08pm*

**DVC**

use the inverse square law to show that in space shuttle territory, 200 kilometers above 94 percent of that at earths surface??
*Friday, March 1, 2013 at 5:23pm*

**physics**

Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. The temperature of the gaseous planet varies linearly with the height of the atmosphere. The delicate instruments on board completely fail at a height of 61.5 kilometers. What is the ...
*Friday, March 1, 2013 at 4:17pm*

**Physics**

A projected space station consists of a circular tube that is set rotating about its center (like a tubular bicycle tire) as shown in figure below. The circle formed by the tube has a diameter of about D = 1.28km. What must be the rotation speed (in revolutions per day) if an ...
*Friday, March 1, 2013 at 12:12am*

**biology help plz?????????????????**

Complete the following paragraph relating to the enzyme, β–galactosidase. This enzyme hydrolyses the disaccharide lactose to constituent monosaccharides, galactose and glucose. Drag and drop the appropriate words into the correct space. For white spaces in the ...
*Thursday, February 28, 2013 at 9:11am*

**Electromagnetic spectrum**

Some astronomical objects emit no visible light but are known through (blank?) and radio images; satellite observations (blank?) Earth's atmosphere help scientists study space at wavelengths that do not reach Earth's surface?
*Tuesday, February 26, 2013 at 6:49pm*

**Physics**

A 64.7 kg astronaut is on a space walk away from the shuttle when her tether line breaks. She is able to throw her 14.1 kg oxygen tank away from the shuttle with a speed of 7.45m/s to propel herself back to the shuttle. Assuming that she starts from rest (rela- tive to the ...
*Tuesday, February 26, 2013 at 9:32am*

**Linear Algebra**

Prove that If a vector space is of dimension n and a set of vectors spans V, then that set of vectors must be linearly independent.
*Tuesday, February 26, 2013 at 9:01am*

**physics**

For a safe re-entry into the Earth's atmosphere the pilots of a space capsule must reduce their speed from 2.6 104 m/s to 1.0 104 m/s. The rocket engine produces a backward force on the capsule of 1.7 105 N. The mass of the capsule is 3800 kg. For how long must they fire ...
*Monday, February 25, 2013 at 9:08pm*

**Physics**

A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its ...
*Monday, February 25, 2013 at 5:03pm*

**Science**

Proteins found on the outside of cells and viruses are called ____________ , these are used by the body to _______________ pathogens. antigens; help antibodies; make antigens; identify antibodies; reproduce Identify the response below that summarizes the correct sequence of ...
*Friday, February 22, 2013 at 7:43pm*

**science**

The moon is the earth's nearest neighbor in space the radius of the moon is approximately one quarter of the earth's radius and it's mass is one eightieth of the earth's mass.(a)calculate the weight of an object with a mass of 50.0kg on the surface of the moon...
*Thursday, February 21, 2013 at 4:21pm*

**physics**

the force required to maintain an object at a constant velocity in free space is eaqual to?
*Wednesday, February 20, 2013 at 8:11pm*

**Business**

in what way is each of the following a marketing activity? a. the provision of sufficient parking space for custoemers at a suburban shopping mall b. the purchase by a clothing store of seven dozen sweaters in assorted sizes and colors. c. the inclusion of longer and more ...
*Wednesday, February 20, 2013 at 1:49am*

**science**

There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
*Tuesday, February 19, 2013 at 9:54pm*

**science**

There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
*Tuesday, February 19, 2013 at 9:42pm*

**math**

. A bag contains 3 marbles: a red one, a white one, and a green one. Suppose that two marbles are selected without replacement. (a) How many outcomes are in the sample space? List them (b) What is the probability that a red marble, and then a green marble (in that order) are ...
*Tuesday, February 19, 2013 at 12:15pm*

**Math-Please Help**

The arch is made up of equilateral triangular sections with double walls of steel 3 feet apart. Space between the walls is filled with reinforced concrete. Sizes of the sections vary, but a section at the bottom of the Arch has 54-foot sides and is 12 feet tall. About how much...
*Monday, February 18, 2013 at 6:35am*

**Physics 212**

Three equal point charges, each with charge 1.50\mu C , are placed at the vertices of an equilateral triangle whose sides are of length 0.300m . What is the electric potential energy U of the system? (Take as zero the potential energy of the three charges when they are ...
*Thursday, February 14, 2013 at 7:49pm*

**Math**

The school handy man measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is NOT more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
*Thursday, February 14, 2013 at 6:07pm*

**Math**

The school handyman measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is not more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
*Thursday, February 14, 2013 at 5:48pm*

**science **

how can space change your weight in space
*Thursday, February 14, 2013 at 5:37pm*

**Physics **

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes...
*Wednesday, February 13, 2013 at 7:59pm*

**Physics **

Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 25 m/s. (a) What is the velocity of the ball 4 seconds after it is thrown? m/s (b) How much time...
*Wednesday, February 13, 2013 at 6:55pm*

**Stats / Prob**

Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your answers as fractions.)
*Wednesday, February 13, 2013 at 11:15am*

**physics**

In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^-15Pa. What is the density of matter in this region? What is the particle density?
*Wednesday, February 13, 2013 at 8:27am*

**math**

PHIL'S WIFE ROWENA, IS DECORATING A PORTION OF THE KITCHEN WALL BEHIND THE STOVE IN A MOSAIC MADE UP OF EQUAL NUMBERS OF BLACK,WHITE, AND RED TILES. THE SPACE MEASURES 6 FEET BY 2 FEET. THE MOSAIC TILES ARE 6 INCH SQUARES. HOW MANY RED TILES ARE REQUIRED?
*Tuesday, February 12, 2013 at 8:25pm*

**Physics**

A spacecraft of mass 2000kg, moves at a constant speed of 7800m.s- in space. the main engine switched on for 10s during which time the exhaust gases travels at 10 000m.s-. As a result of this, the craft travels at 8000m.s- after 10s. Calculate the mass of the exhaust gas.
*Tuesday, February 12, 2013 at 3:09pm*

**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, February 12, 2013 at 10:58am*

**physics**

Imagine a spring floating in space. This spring has a very small length when it is unstretched. The spring constant for this spring is 4.2 N/m. Now place 2.6 μC charges on each end of the spring, and allow it to stretch until it reaches a new equilibrium. What is the new ...
*Monday, February 11, 2013 at 2:48pm*

**standard deviation**

If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a numerical answer in the space provided. Round your answer to the nearest tenth and do not type spaces in your answer.
*Monday, February 11, 2013 at 9:45am*

**socology**

what is the meaning of ventilation and space of structures
*Sunday, February 10, 2013 at 11:31am*

**Math**

A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, and a twenty-dollar bill. Two bills are chosen in succession without replacement. Use a tree diagram to list the sample space for this experiment and then answer the following questions in fractions 1. ...
*Friday, February 8, 2013 at 2:15pm*

**space science**

What other challenges do you think there would be for engineers designing a spacecraft to travel to mercury?
*Thursday, February 7, 2013 at 6:09pm*

**7 Science**

If earth was larger what would happen to it's atmosphere? It would expand It would evaporate It would be sucked into space It would become more dense
*Wednesday, February 6, 2013 at 2:12pm*

**Math**

A photograph is 25 cm and 20 cm high. It must be reduced to fit a space that is 8 cm high. Find the width of the reduced photograph.
*Monday, February 4, 2013 at 6:58pm*

**math**

perform the following unit conversion. 296 0z= ___________ lb 18.5, 55.5, 37, 74 My Answer is 18.5 Perform the following conversion. 32kg= ______ lb 16,320,70.4,14.4 My Answer is 70.4 Some people feel that the ideal temperature for an office space is 72.0 F. What is the ...
*Monday, February 4, 2013 at 2:02pm*

**college mathematics **

Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
*Monday, February 4, 2013 at 10:30am*

**History**

NASA, space shuttles, and the International Space Station are (a)all related to Cold War spy technology (b) joint scientific study and space exploration efforts (c) United States efforts to build anti missile defenses (d) belief in extraterrestrial life
*Sunday, February 3, 2013 at 1:31pm*

**statistics**

1. The scores on a standardized test for high school students are normally distributed with a population mean of 500 and a population standard deviation of 100. Use the empirical rule (0LI refers to this as the standard deviation rule.). Make sure you provide graphs for each ...
*Sunday, February 3, 2013 at 12:26pm*

**math**

Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
*Saturday, February 2, 2013 at 5:20pm*

**chemistry help !!!!!!!!!!!!!!!!**

complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme ,B-galactosidase is added to a...
*Saturday, February 2, 2013 at 5:11pm*

**chemistry help !!!!!!!!!!!!!!!!**

complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme ,B-galactosidase is added to a...
*Saturday, February 2, 2013 at 5:10pm*

**math**

Three people are being selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
*Friday, February 1, 2013 at 6:48pm*

**Tree diagrams **

Three people are being selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person selected gets the third ...
*Friday, February 1, 2013 at 1:48pm*

**Intro to Computer Engineering**

When solving 5x^2-50x+125=0, a space alien got x=8 for one of the two roots. What possible base could the alien be using? (Note: the coefficients are also in this base. That is 5,50,125 are all in this mystery base as well)
*Thursday, January 31, 2013 at 1:29pm*

**ENG**

I'm trying to write a paragraph with levels of generality for English. Here's what I have so far... I need help with grammar and punctuation... also does it make sense ? In the city of Carson, California there is a small house on Mesa Boulevard that is shared among ...
*Tuesday, January 29, 2013 at 12:49am*

**writing**

Edit mMath Autobiography Theresa V. Monteiro MAT 095 11:00 AM – 12:15 PM My name is Theresa and I am from Norwalk Connecticut. I’ve been living here for a year now. I moved to New London Connecticut to start my life. I’ve taken care of all my immediate family ...
*Monday, January 28, 2013 at 11:59am*

**phy**

A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both ...
*Monday, January 28, 2013 at 3:33am*

**math**

Consider the experiment of choosing the top 7 cards from a shuﬄed deck in two ways: (a) Without replacement. 1. What is the sample space? 2. What is the probability that you get only red cards? (b) With replacement. 1. What is the sample space? What is the probability ...
*Sunday, January 27, 2013 at 6:38pm*

**math**

Suppose you roll a fair die 18 times. (a) What is the sample space? (b) What is the probability that each number from 1 to 6 appears exactly thrice? (c) What is the probability that the number 1 appears exactly twice, 3 appears exactly four times, and 5 appears exactly six times?
*Sunday, January 27, 2013 at 6:36pm*

**math**

A bag contains ﬁfty slips (small pieces of paper) with the numbers 1, 2, . . . , 50 written on them (One number on each slip!). Your friend writes down ten numbers from 1, 2, . . . , 50 on a sheet of paper, and then you draw—without replacement—twenty slips ...
*Sunday, January 27, 2013 at 6:34pm*

**cultural diversity**

NAEYC supports "third space" thinking as a desirable technique for use in A. stimulating children's right-brain processes. B.enhancing staff performance in the early childhood setting. C.Resolving conflicts, especially those involving cultural issues. D.training ...
*Sunday, January 27, 2013 at 3:45pm*

**CALCULLUS**

Question 2: If is the position of a particle in space at time .Find the angle between the velocity and acceleration vectors at time
*Sunday, January 27, 2013 at 1:26am*

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