Wednesday

July 30, 2014

July 30, 2014

**Recent Homework Questions About Outer Space**

Post a New Question | Current Questions

**writing**

PLEASE PROOF READ IT WILL BE DOUBLE SPACED WHEN I SUBMIT IT. In approximately 200–350 words, using compare/contrast strategies, discuss the benefits and/or advantages of shopping online, rather than shopping in a store. The Benefits of Online Shopping Rather Than ...
*Sunday, November 4, 2012 at 7:44pm*

**Capacitance (tricky)**

Two parallel plates of area 41 cm.^2 have equal but opposite charges of 2.60E-07 C. Within the dielectric material filling the space between the plates, the electric field is 5.80E+05 V./m. Find the dielectric constant of the material. Feel like there is a huge lack of ...
*Saturday, November 3, 2012 at 1:18am*

**AP Physics B**

A gadget of mass 17.85 kg ﬂoats in space without motion. Because of some internal malfunction, the gadget violently breaks up into 3 fragments ﬂying away from each other. The ﬁrst fragment has mass m1 = 4.12 kg and speed v1 = 3.57 m/s while the second ...
*Thursday, November 1, 2012 at 6:34pm*

**Physics **

A space station shaped like a giant wheel has a radius 105 m and a moment of inertia of 5.09 108 kg · m2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1g. When 100 people move to the center of the ...
*Thursday, November 1, 2012 at 1:30pm*

**Physics**

When we lauch a space shuttle will it go with Earths rotationor would it go opposite?
*Wednesday, October 31, 2012 at 10:03pm*

**PHYSICS**

A space station shaped like a giant wheel has a radius 105 m and a moment of inertia of 5.09 108 kg · m2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1g. When 100 people move to the center of the ...
*Wednesday, October 31, 2012 at 3:37pm*

**Intro to physics**

A space station shaped like a giant wheel has a radius 105 m and a moment of inertia of 5.09 108 kg · m2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1g. When 100 people move to the center of the ...
*Wednesday, October 31, 2012 at 12:10pm*

**physics**

The space probe Deep Space I was launched on October 24, 1998. It's mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of time with the ...
*Tuesday, October 30, 2012 at 1:35am*

**comp.sci-python**

For this option, first ask the user what the maximum number of columns for printing will be. ("How wide should the output be?") Next, the user will enter in a paragraph of text. They may enter it in as many lines as they'd like, and the only way you know they are...
*Monday, October 29, 2012 at 11:03pm*

**computer science**

Python 3 For this option, you will first ask "how many rows?", and get a positive integer from them. Next, you will ask "how many columns?", and get another positive integer from them. The next step is to ask for an alignment of each column. They will enter...
*Monday, October 29, 2012 at 11:00pm*

**Statistics**

A university has an exclusive agreement with the coffee chain Monobeans. Several students and faculty complained about their lack of baked goods. Looking for a better provider of carbs and caffiene, the university management rents out for one trial semester a space within a ...
*Monday, October 29, 2012 at 3:57pm*

**phyicis**

Homer Hickham and his buddies launched model rockets in the late 1950's when the US was trying to get a rocket into space. If homer launches a rocket from rest and its engine delivers a constance acceleration of 8.2 m/s^2 for 5.0seconds after which the fuel is used up by ...
*Monday, October 29, 2012 at 1:18pm*

**Statistics**

A university has an exclusive agreement with the coffee chain Monobeans. Several students and faculty complained about their lack of baked goods. Looking for a better provider of carbs and caffiene, the university management rents out for one trial semester a space within a ...
*Sunday, October 28, 2012 at 2:54pm*

**science **

What property of gases allow them to completely fill whatever space they are in?
*Wednesday, October 24, 2012 at 9:15pm*

**information literacy**

1. which article title represents a citation under the news results? A)priceton paleontologist produces evidence for new theory on dinosaurs extinction B)chunk of death dealing with astroid found C)second crater points to killer comets D)extinctions tied to impact from space
*Wednesday, October 24, 2012 at 6:17pm*

**c++**

Distance between two 3-D points. Given two points in space (3-dimensional), find the distance between them. The user will input the coordinates (x,y,z) of the two points and your program will calculate and display the distance between the points.
*Wednesday, October 24, 2012 at 4:09pm*

**physics college**

A rocket booster fires in space with a force of 500N and moves the 10kg satellite from rest to motion in 2.1 seconds. Find the acceleration? What is the final speed of the satellite?
*Tuesday, October 23, 2012 at 11:30pm*

**physics**

You are explaining to a friend why the crew of the International Space Station feels weightless while orbiting the Earth. Your friend responds that he thought gravity was just a lot weaker up there. Show that it isn’t so by calculating the acceleration due to gravity 350 ...
*Tuesday, October 23, 2012 at 10:45pm*

**Science Fair**

Hi, my question is are part 1,2, and 3 different ways you can do the project? There are three parts. Each part should take less than 1 hour. In Part 1, you will stare at a colored object for various amounts of time, then measure how long it takes for the afterimage to ...
*Tuesday, October 23, 2012 at 6:21pm*

**Physics**

In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer space. From stationary positions they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of −2.7 m/s. (b) Determine the ratio mBonzo/...
*Monday, October 22, 2012 at 7:29pm*

**algebra**

can anyone please help me set this problem up, I can do the math but I have tried for hours... Air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space limits only 125 ...
*Monday, October 22, 2012 at 1:59pm*

**math**

air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space limits only 125 passengers will be allowed. how many memberships will maximize the revenue?
*Monday, October 22, 2012 at 1:11pm*

**calculus**

A health club offers memberships at the rate of $300, provided that at least 50 people join. For each member in excess of 50, the membership fee will be reduced by $2 for all members. Due to space limitations, at most 125 memberships will be sold. How many membersips should ...
*Monday, October 22, 2012 at 11:15am*

**Math**

Radius of earth 3,959 miles Space shuttle orbits 200 miles above earths Surface Space shuttle completes 220 degrees of a Revolution around earth in one day What is the average speed of the space Shuttle
*Sunday, October 21, 2012 at 5:22pm*

**Math**

Radius of earth 3,959 miles Space shuttle orbits 200 miles above earths Surface Space shuttle completes 220 degrees of a Revolution around earth in one day What is the average speed of the space Shuttle
*Sunday, October 21, 2012 at 4:52pm*

**Physics**

On earth, two parts of a space probe weigh 18300 N and 4440 N. These parts are separated by a center-to-center distance of 5.11 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the other out in space, far...
*Friday, October 19, 2012 at 5:00pm*

**Physics**

Calculate a space shuttle territory 250 km above Earth's surface. Earth's mass is 6.0 * 10^24kg and its radius is 6.38 * 10^6 m (6380km)
*Thursday, October 18, 2012 at 12:57pm*

**math**

A group medical practice has 40,000 patients. Charts vary in thickness from 1/4 to 1 inch thick. The average of all charts is 1/2 inch thick. Using the average 1/2 inch thickness, how many inches of shelf space will be required for 40,000 charts?
*Tuesday, October 16, 2012 at 11:36pm*

**science**

Also is did cassini send out a space probe or satellite?
*Tuesday, October 16, 2012 at 6:54pm*

**Physics**

An asteroid with mass m = 1.85*10^9 kg comes from deep space, effectively from infinity, and falls toward Earth. How much work would have to be done on the asteroid by friction to slow it to 550 m/s by the time it reached a distance of 1.50*10^8 m from Earth?
*Tuesday, October 16, 2012 at 6:34pm*

**Math**

24 (6-)-1 divided by-5. There is a big space between the 24 and the -6. I don't know if I multiply 24x-6 or do I multiplying-6x-1and then times it by 24. Please help
*Tuesday, October 16, 2012 at 11:17am*

**math**

The question is 24 (-6)-1/-5 I don't understand what you do with the 24. I got -145/-5=29 I multiplied 24 by -6 but I don't think this is right there is a big space between the 24 and the other numbers.
*Friday, October 12, 2012 at 12:01pm*

**Communication**

Which of the following is NOT a technique for emphasizing material in a resume? A. Presenting it in vertical lists B. Including it as part of a lengthy paragraph C. Offsetting it with white space D. Positioning it as the top of a page
*Monday, October 8, 2012 at 7:56pm*

**Science**

How many minutes are required for a radio signal to travel from Earth to a space station on Mars if Mare is 7.83 x 10 to the 7th power km?
*Monday, October 8, 2012 at 2:03am*

**Physics**

To create artificial gravity, the space station shown in the drawing is rotating at a rate of 1.60 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.00. Each chamber A simulates an acceleration due to gravity of 9.60 m/s2. Find values for (a) rA, (b...
*Saturday, October 6, 2012 at 11:32pm*

**PLEASE read over essay**

I did this for chemistry. Are the examples and grammer correct? THANK YOU SO MUCH TO WHOEVER ACTUALLY TAKES THE TIME TO READ THIS I LOVE YOU OMG. Naming Chemical Compounds By: Bryce R The periodic table is made up of the most simplest and complex elements. These elements ...
*Thursday, October 4, 2012 at 10:45pm*

**physics**

A space traveler weighs 635 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?
*Thursday, October 4, 2012 at 1:03am*

**physics**

The Hubble Space Telescope orbits Earth 621 km above Earth's surface. What is the period of the telescope's orbit? Give answer with 5 significant figures.
*Wednesday, October 3, 2012 at 10:24pm*

**science **

how many days would it take to fly to Jupiter (from Earth) in a space shuttle at 45,000 miles per hour? The minimum distance between the Earth and Jupiter is 365 million miles.
*Wednesday, October 3, 2012 at 9:44pm*

**Physics**

Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 635 rev/s. A point on one of the blades traces out a circle with a radius of 0.021 m as the blade rotates. (a) What is the magnitude of the ...
*Tuesday, October 2, 2012 at 5:45pm*

**space**

What causes the rings around the equators of Saturn and jupiter
*Tuesday, October 2, 2012 at 5:29pm*

**Physical science **

I need help on how to set up a formula for 27c and 750 mm hg,a sample of hydrogen occupies 5.00 l how much space will it occupy at stp
*Tuesday, October 2, 2012 at 5:29pm*

**Uni Physics**

A 67 kg astronaut (Jeff), an 88 kg astronaut (Brett) and a 17 kg rock are tied together by a light rope during a space walk. The distance between Jeff and the rock is 5.0 m, the distance between Brett and the rock is 2.0 m. Find the position of the centre of mass of the system...
*Tuesday, October 2, 2012 at 12:00am*

**stor**

Suppose that you flip a fair coin (P(H)=P(T)=1 2 ) three times and you record if it landed on heads, H, or tails, T. (a) What is the sample space of this experiment? What is the probability of each event? (b) [1 pt] Let X be the number of times that you observe heads. What ...
*Saturday, September 29, 2012 at 6:18pm*

**Math**

Pool tables are rectangular, and their length is twice the width. Find the dimensions of a pool table if it occupies 162 ft2 of floor space
*Friday, September 28, 2012 at 6:33pm*

**7th grade Science help**

1. _______ is energy that flows from an object with a higher temperature to an object with a lower temperature. (1 point) Heat Radiation Potential Chemical 2. The transfer of energy that occurs when molecules bump into one another is called _____. (1 point) radiation ...
*Wednesday, September 26, 2012 at 7:51pm*

**7th grade Art**

1. This element of art is used to create depth in a picture. (1 point) shape pattern space texture 2. This technique is used to angle the lines of roads and buildings in a picture. (1 point) aeriel perspective vanishing point linear perspective atmospheric perspective 3. This ...
*Wednesday, September 26, 2012 at 7:50pm*

**Pre-Algebra-math**

Mr.jones bought 20 yards of fencing to make pen for dog pen will be in rectangle shape, the fencing comes in 1 yard section, wants the MAXIMUM areafor his dog to run, what dimension will give the pen the biggest space for dog to run?? then what r the dimensions for the maximum...
*Tuesday, September 25, 2012 at 3:51am*

**Pre-Algebra-math**

Mr.Jones bought 20 yards of fencing to make a pen for his dog, the pen will be in a retangle shape fencing comes in 1-yard sections,he want the biggest space possible for his dog to run. What are the dimensions of the maximum space of the pen he can get??
*Sunday, September 23, 2012 at 11:28pm*

**Account**

Use the following identification codes to indicate the effects of each transaction on the accounting equation: I = Increase; D = Decrease; NE = No Effect. Write your answers in the space provided under the accounting equation, being sure to include an identification code for ...
*Sunday, September 23, 2012 at 5:31pm*

**physics**

A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1 km. What must be the rotation speed (revolutions per day) if an effect equal...
*Saturday, September 22, 2012 at 8:00pm*

**Physics**

In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an ...
*Friday, September 21, 2012 at 6:34pm*

**earth**

a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the earth
*Wednesday, September 19, 2012 at 5:53am*

**Physics**

Consider a space pod somewhere between earth and the moon, at just the right distance so that the gravitational attractions to Earth and Moon are equal. Is this location nearer Earth or Moon?
*Tuesday, September 18, 2012 at 1:12am*

**Physics**

The space probe Deep Space 1 was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of time with the ...
*Tuesday, September 18, 2012 at 12:51am*

**stor **

Twitter: Suppose that the population proportion of Internet users whosay they use Twitter or a similar service to post updates about themselves or to see updates about others is 19%. Think about selecting random samples from a population in which 19% are Twitter users. a) ...
*Monday, September 17, 2012 at 7:13pm*

**Physics**

In deep space (no gravity), the bolt (arrow) of a crossbow accelerates at 187m/s^2 and attains a speed of 114m/s when it leaves the bow. For how long is it accelerated? Answer in units of m/s What speed will the bolt have attained 2.8 sec after leaving the crossbow? Answer in ...
*Sunday, September 16, 2012 at 2:27pm*

**Math**

a rectangular box is 2 cm high, 4cm wide and 6 cm deep. Michelle packs the box with cubes, each 2 cm by 2cm by 2cm, with no space left over. How many cubes does she fit in the box?
*Tuesday, September 11, 2012 at 8:57pm*

**adv comp**

how can i put this sentence where I am not talking to the reader, just describing the surroundings. As one starts to stride to the right,they come upon a small stream and can’t get past the reeking smell of unknown origins. my whole paper is suppose to be like that. I am ...
*Tuesday, September 11, 2012 at 5:57pm*

**physics**

You are on a train traveling east at speed of 17.0 m/s with respect to the ground. 1) If you walk east toward the front of the train, with a speed of 1.1 m/s with respect to the train, what is your velocity with respect to the ground? 2) If you walk west toward the back of the...
*Monday, September 10, 2012 at 8:01pm*

**Language arts**

The boys on the soccer team will go across the street, through the valley, and into the park. What is the adjective phrase? Beyond that hill sits a house without a roof. adverb phrase is millions of stars form a galaxy,and between any two stars there are light years of space. ...
*Monday, September 10, 2012 at 2:53pm*

**physics**

The Space Shuttle travels at a speed of about 7.88E+3 m/s. The blink of an astronaut's eye lasts about 107 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
*Sunday, September 9, 2012 at 5:22pm*

**Math**

It is recommended that there be at least 7 square feet of work space for every person in a conference room. A certain conference room is 13' by 16'. Find the maximum number of people the room can accommodate.
*Saturday, September 8, 2012 at 10:58pm*

**Math**

If x = xo and x = x1 are both vector solution of Ax=b, then x1 - xo is in the Null Space of A. True or False?
*Friday, September 7, 2012 at 1:48pm*

**Linear Algebra**

Show that the functions (c1+c2sin^2x+c3cos^2x) form a vector space. Find a basis of it. What is its dimension?
*Thursday, September 6, 2012 at 9:00am*

**physics**

A runner is jogging at a steady 2.3 km/hr. When the runner is 8.4 km from the finish line, a bird begins flying from the runner to the finish line at 9.2 km/hr (4 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the runner...
*Tuesday, September 4, 2012 at 11:09pm*

**math**

Assume that the box contains 5 balls: 1 yellow, 2 green, and 2 red. Balls are drawn in succession without replacement, and their colors are noted until a yellow ball is drawn. Q: How many outcomes are there in the sample space?
*Tuesday, September 4, 2012 at 6:17pm*

**Algebra**

The floor of a one-story building is 14 feet longer than it is wide (see figure). The building has 1472 square feet of floor space. a) Write a quadratic equation for the area of the floor in terms of w. (b) Find the length l and width w of the floor.
*Sunday, September 2, 2012 at 6:46pm*

**Space - Sally Ride - Accomplish**

What did Sally Ride accomplish and what did it mean for us? I know she was the first women in space, but what did she do in space?
*Friday, August 31, 2012 at 11:02am*

**Computers**

double **dptr; dptr = new double*[5]; for (int i = 0; i < 5; i++) dptr[i] = new double[3]; How many rows and columns will there be in dptr? Also, what would the code look like to Delete all the space allocated for dptr???
*Friday, August 31, 2012 at 1:12am*

**7th Grade Spelling**

Instructions: In the space provided, write the vocabulary word from list 3 that is most nearly an antonym (a word opposite in meaning) of each of the following expressions. 1. Promising--------- Is it ominous, pacific, plod, smolder, submerge, swagger, or tedious?
*Wednesday, August 29, 2012 at 11:49pm*

**math (statistics)**

an experiment consistbnof tossing a die and then flipping a coin once if the number on the die is even. If the number on the die is odd, the coin is flipped twice. Using the notation 4H, for example to denote an event that die comes up 4 and then the coin comes up heads, and ...
*Saturday, August 25, 2012 at 9:49pm*

**math**

A single card is selected from an ordinary deck of cards. The sample space is shown in the following figure. Find the following probabilities. (Enter the answers either as fractions or as decimals rounded to three places.) P(five of clubs) = 1 P(five) = 2 P(club) = 3 P(jack...
*Friday, August 24, 2012 at 2:58pm*

**Science, Astrenomey**

This is my theory, read well if you wish to know the truth: according to the big bang, there is a equal amount of anti-matter to the matter, BUT nearly all that matter is missing! In this theory there was NO anti-matter when the earth was made. anti-matter is made when ...
*Thursday, August 23, 2012 at 9:45am*

**writing**

i was advise not to take eng 093 just yet which is basic english and and the courses i take requires me to write papers. Please help me with learning the basics of english, like putting the commas, semi in its apprioate space. also grammar!
*Tuesday, August 21, 2012 at 9:11pm*

**Properties of the ceramic ball mill**

The structure of Ceramic Ball Mill: Ceramic Ball Mill is mainly composed of a driving device, a cylinder body device, feeding device, discharging device and an electrical control device.Ceramic Ball Mill load is large, the power consumption is large, so the ceramic ball mill ...
*Monday, August 20, 2012 at 11:45pm*

**writeteacher**

i was advise not to take eng 093 just yet which is basic english and and the courses i take requires me to write papers. Please help me with learning the basics of english, like putting the commas, semi in its apprioate space. also grammar!
*Monday, August 20, 2012 at 7:25pm*

**math**

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...
*Wednesday, August 15, 2012 at 8:37pm*

**Physics**

A proposed interstellar space vehicle comprises an accommodation unit of mass 690 Tons at the front, separated by a light tube between the individual centres of mass, which is 43m. The amount of seperation is necessary to reduce levels (from the nuclear engine) at the ...
*Saturday, August 11, 2012 at 9:09pm*

**physics**

An orbiting spacecraft is described not as a "zero-g" but rather as a "microgravity" environment for its occupants and for onboard experiments. Astronauts experience slight lurches due to the motions of equipment and other astronauts and due to venting of ...
*Friday, August 10, 2012 at 2:52pm*

**physics 102**

What are the wavelengths of electromagnetic wave in free space that have the following frequencies? (a) 3.00 10^19 Hz pm (b) 7.50 10^9 Hz cm
*Thursday, August 9, 2012 at 5:56pm*

**english**

please organize these into a paragraph ;astronaauts supposed to rest for eight hours, but too excited to rest ;astronauts easily hopped high because moon has less gravity than earth ;opened spaceship door 61/2 hours after landing ;brought back to earth some moon rocks and soil...
*Sunday, August 5, 2012 at 8:43am*

**communications**

2.Which of the following is NOT a technique for emphasizing material in a résumé? A. Presenting it in vertical lists B. Including it as part of a lengthy paragraph C. Offsetting it with white space D. Positioning it at the top of a page 1.) I think it's "...
*Sunday, July 29, 2012 at 11:30pm*

**Physics**

The Hubble Space Telescope (HST) has recorded evidence of a black hole at the center of the M87 galaxy. Using Doppler data, it's been measured that matter is orbiting the center of this galaxy at an orbital speed of 7.5x10 5 m/s, out at a radius of 5.7x10 17 m. Calculate ...
*Thursday, July 26, 2012 at 12:00pm*

**english**

Redarding the difference between fiction and nonfiction, which statement is most accurate A.writers of non fiction have no need to express passionate opinion B.nonfiction writers are more often free to move about in time and space C.nonfiction writers are free to emblish the ...
*Wednesday, July 25, 2012 at 3:06pm*

**algebra****

Consider the sample space S = {1, 2, 3, . . ., 10}. Let A = all odd numbers in S. Let B = all multiples of 5 in S. Compute P(B | A). Enter your answer as a fraction using the "/" and do not include spaces in your answer.
*Tuesday, July 24, 2012 at 4:12pm*

**Integrated Math 1 (help please??:( )**

Consider the sample space S = {1, 2, 3, . . ., 10}. Let A = all odd numbers in S. Let B = all multiples of 3 in S. Compute P(B | A). Enter your answer as a fraction using the "/" and do not include spaces in your answer.
*Tuesday, July 24, 2012 at 7:31am*

**physical**

Steel rails for a train track are laid in a region subject to extremes of temperature. The distance from one juncture to the next is 4.41 m, and the cross-sectional area of the rails is 60 cm2. If the rails touch each other without buckling at the maximum temperature, 60.0 &...
*Monday, July 23, 2012 at 1:08pm*

**Finite Math**

Let A,B be events in a sample space. you are given the following probabilities: P(A)=0.8, P(B|A)=0.3, P(B|A^c)=0.8 Find: 1) P(B) 2) P(A|B) 3) P(A^c|B^c)
*Monday, July 23, 2012 at 1:11am*

**statistics**

A manager for a firm that sells advertising space in magazines and periodicals is considering a number of new initiatives to recognize high-performing members of her sales force. Assume that the annual sales revenue for members of her sales force is normally distributed with a...
*Saturday, July 21, 2012 at 1:41am*

**Algebra**

Paint Express charges $30 per gallon of paint plus $1.10 per square foot of wall space. Color Creations charges $24 per gallon of paint plus $1.20 per square foot of wall space. Robert estimates he will need four gallons of paint for the rooms he’d like painted. How much ...
*Wednesday, July 18, 2012 at 1:26pm*

**physics**

An electron moving to the right at 4.0% the speed of light enters a uniform electric field parallel to its direction of motion. If the electron is to be brought to rest in the space of 5.0 cm, determine what the strength of the field is.
*Tuesday, July 17, 2012 at 8:01pm*

**English**

Very weird SAT "sentence completion" question The literal meaning of astronaut is "---" a) Space Jockey b) Cosmic navigator c) Star sailor d) Space pilot e) Sky pilot
*Monday, July 16, 2012 at 9:22pm*

**Physics(Rotational Energy)**

Suppose three masses are arranged as shown, connected by a rodless mass. (2 kg)-------(6 kg)--------(4 kg) 2m 3m a) If this object is free to rotate in space, about what point will it spin? b) A small mass (m=0.1 kg) drops vertically onto the2 kg mass traveling 100 m/s and ...
*Monday, July 16, 2012 at 5:42pm*

**Math**

A tree one hundred cubits high is distant from a well two hundred cubits; from this tree one monkey climbs dow the tree and goes to the well, but the other leaps in the air and descends by the hypotenuse from the high point of the leap, and both pass over an equal space. Find ...
*Sunday, July 15, 2012 at 11:34pm*

**physics**

Two astronauts, each having a mass of 89.0 kg, are connected by a 10.0 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.60 m/s. Treating the astronauts as particles, calculate each of the following.
*Sunday, July 15, 2012 at 5:34pm*

**probability**

3. A bag contains five different lightbulbs. The bulbs are the same size but each has a different wattage. If you select three bulbs at a random,how many different outcomes will be in the sample space if the bulbs are selected without replacement? I understand there is 5 ...
*Sunday, July 15, 2012 at 9:53am*

**physics**

A cylinder with a radius of 15 km is built in space for use as a space station. This cylinder is rotating about its long axis to generate ‘artificial gravity’. When people walk on the inner surface of the spinning cylinder, the normal force between their feet and ...
*Thursday, July 12, 2012 at 1:35pm*

**math**

A storage area measures 15.6 feet by 10.2 feet by 8.5 feet. If it is 1/3 full, how many cubic feet of storage space remains (rounded to the nearest cubic foot)?
*Thursday, July 12, 2012 at 11:55am*

**math**

A storage room measures 14.25 feet in length by 12.5 feet in width by 8.4 feet in height. It contains a box which is 2.5 feet in length, 5.2 feet in width and 1.5 feet in height . How many cubic feet of storage space are left in the room (rounded to the nearest cubic foot)?
*Thursday, July 12, 2012 at 11:20am*

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