Monday

December 22, 2014

December 22, 2014

Number of results: 59,888

**Lang. Arts**

He became famous for his theories of (22) relativity and won the 1921 Nobel Prize for physics. relativity and won A.relativity, and won B.relativity and, won C.relativity, and, won D.no error I think it is D...?
*March 8, 2013 by Cassie*

**Physics**

Explanation of twin paradox in regards to special relativity theory.
*June 7, 2014 by Tom*

**Astronomy**

The speed of light is the same for all observers, and the laws of physics are the same for all observers in uniform motion. These two statements are fundamental postulates of A) general relativity B) Newtons laws of motion C) special relativity D) the laws of electricity and ...
*March 28, 2010 by Anonymous*

**Physics**

According to special relativity, the momentum (mv) of an object at relativistic speed is actually: more, less or no different than if it were at rest
*May 3, 2008 by clark*

**Physics**

According to special relativity, at high speeds the distance between distant locations is: a) shortened b) no different than if you were at rest c) lengthened
*May 3, 2008 by cguff*

**physics**

check my anwsers please. How do we detect black holes? I think you observe their gravitational influence on things around them Is that correct? Respectively, Einstein's special theory of relativity and his general theory of relativity replace Newton's theory whenever...? I ...
*February 18, 2007 by korey*

**physics**

Muons are elementary particles that have a very short lifetime of about two millionth of a second (when at rest). They can be created in the upper atmosphere (at an altitude of say 10,000 meters) by cosmic rays, in which case they travel towards the surface of the Earth at ...
*March 20, 2011 by roxy*

**physics**

Muons are elementary particles that have a very short lifetime of about two millionth of a second (when at rest). They can be created in the upper atmosphere (at an altitude of say 10,000 meters) by cosmic rays, in which case they travel towards the surface of the Earth at ...
*March 27, 2011 by john*

**Earth Space**

What is fission? How is Einstein's theory of special relativity expressed? What does each letter stand for?
*September 16, 2013 by Bryce*

**Physical Science**

According to the special theory of relativity, all laws of nature are the same in reference frames that....?
*March 29, 2007 by Gina*

**language help !**

Albert Einstein, a world-famous mathematician was born in Bavaria in 1879. He acquired Swiss nationality in 1901 and he began working at the Swiss patent office the next year. Einstein was however also publishing papers in physics. He became famous for his theories of ...
*May 20, 2014 by kelsey *

**Really Physics**

A 2.4 Kg object moving to the right at 0.8c collides with a 3.2 kg object moving to left at 0.6c. They stick together. Find the mass and velocity of the resulting combined object by; a) assuming that you have no knowledge of relativistic physics, b) using the special theory of...
*March 13, 2011 by Bob*

**physics**

Assume that the mass of a neutron star is 1.5 times that of the Sun and the radius of the neutron star is 10 km. Ignore effects of Special Relativity. What is the approximate speed at which an object released from far away (at zero speed) reaches the surface of a neutron star...
*December 25, 2013 by Al*

**physics - special relativity**

When a rocket is moving at a constant speed, it has a relativistic mass that is 60 percent greater than its rest mass. Find the speed of the rocket. **** So far, I tried using the relativistic mass equation.. 0.6m = mv / square root 1-(v/c)2
*June 7, 2010 by CL*

**physics (special relativity)**

A single photon in empty space is transformed into an electron and a positron, each with rest mass m(e). (a) show that the folowing process is dynamically impossible. (b) Explain in detail how this process can be made possible (c) for part b what would be the minimum photon ...
*June 8, 2011 by will*

**special relativity **

A projectile of rest mass M1, total energy E1, and momentum p1, is directed at a stationary target of mass m2. Find the the velocity of the centre-of-momentum frame .
*June 7, 2011 by Deforest *

**Cosmology**

Which of the following phenomena is NOT a consequence of Special Relativity? - Mass-energy curves space-time - Length contraction - Time dilation - Mass can not travel faster than the speed of light
*January 8, 2013 by qwerty*

**Science**

Which aspect of Einstein's theory of special relativity was testable? the postulates only the postulates and the predictions the predictions only none of the aspects
*January 8, 2014 by Jacob*

**relativity**

A runs at speed 4c=5 toward B, who is at rest. C is between A and B. How fast should C run so that she sees both A and B approaching her at the same speed? i have tried this but not sure we have to use relativity i thing. else without that i solved and got 2c/5.
*October 23, 2014 by sophie*

**physics**

In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 25000V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into ...
*March 26, 2008 by Cindy*

**special relativity **

A photon of energy E collides with a stationary particle of rest mass m0 and is absorbed by it. what is the velocity of the resulting composite particle ? what is the mass of the resulting composite particle? (use conservation of momentum and energy)
*June 7, 2011 by Deforest *

**Physics help please**

Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a speed of 0.854c, and ...
*April 6, 2012 by Jim*

**Physics Question**

Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a speed of 0.854c, and ...
*April 6, 2012 by Anonymous*

**physics**

what has no beginning and no end. it is also considered as the medium for light in einstein's theory of relativity
*January 2, 2013 by flay*

**physics: relativity**

I think I can rearrange the Lorentz contraction equation, solving for v using: v=sqrt[1-(L/Lo)^2] x c^2 Would someone check my thinking please? Thanks
*March 30, 2009 by charlie*

**teacher aide**

Public law 94-142 mandates that A schools must transport students to special sites for education B only certain states must provide special education programs C parents may not participate in a special needs child's education D every special needs child have an IEP that ...
*May 16, 2011 by Rosie*

**Litreture**

Directions: For questions 19–20, read the passage. Select the letter that shows the best way to write each underlined part. If the underlined part contains no error, select “d. no error.” 18. world-famous mathematician (1 point) a.world-famous, mathematician b.world-famous, ...
*March 5, 2013 by Anonymous*

**college physics**

Which of the following statements about special relativity is false? a).The proper length of an object is always larger than the length of the object in a frame where it is moving. b).The proper length of an object depends on the relative speed between the object and an ...
*October 4, 2010 by Lexi*

**Advanced Dynamics and Relativity**

A point mass m is connected by a massless rod of length L to a ﬁxed point of support, such that the mass is free to rotate about the support in any direction under the inﬂuence of gravity. (a) Construct a Lagrangian in terms of suitable generalised coordinates, ...
*June 3, 2013 by Darcy*

**physics**

An interstellar ship has a mass of 1.20 X10^6 kg and is initially at rest relative to a star system. a) what constant acceleration is needed to ring the ship up to a speed of .10c (where c is the speed of light, 3.0X10^8 m/s) relative to the star system in 3 days? b) what is ...
*November 21, 2006 by Bri*

**science**

Newton’s law of gravity is used with great success in most everyday situations, and indeed, in planning planetary space missions such as the Rosetta probe. However, Einstein’s theory of general relativity and a theory of quantum gravity are needed to describe the observed ...
*August 28, 2011 by mj*

**Physics -Relativity**

Question: If a muon is traveling at 70% of the speed of light, how long does it take to decay in the observer's rest frame (i.e., what is the observed lifetime of the muon)? Answer: =??? us
*April 16, 2008 by Chelsea*

**English**

1. How is Ted special? He dresses well. 2. Why is Ted special? He is wearing a colorful shirt. 3. What is Ted's specialty? He is wearing pink trousers. 4. What is special for Ted? He is fashionable. -------------- Which ones are grammatical and commonly used? Which ones are ...
*March 5, 2014 by rfvv*

**essay help**

do you know any good websites on the following? My essay is on "should Special needs students be exempt from graduation test? any ideas on how to write it? defining special needs, modifications and the IEP, pull-out and inclusion, laws pertaining to special needs students, ...
*August 20, 2008 by scooby91320002*

**Help Please Edu**

The major purpose of an interdisciplinary team is to: a.take turns caring for a child with special needs b.determine the best ways to help a child with special needs learn. c.determine how to discipline a child with special needs d.write reports about the child I think b am i ...
*February 18, 2013 by marie*

**Physics**

A set of twins work in the Sears Tower, a very tall office building in Chicago. One works on the top floor and other works in the basement. Considering general relativity, which twin will age more slowly?
*October 30, 2014 by Anonymous*

**Physics**

OK, so I'm having some serious problems with this one question. It's on relativity. Here it is: Calculate the mass of a proton (m0 = 1.67E-27 kg) whose kinetic energy is one sixth its total energy. How fast is it traveling? THANKS!!
*April 19, 2009 by Marissa*

**PHYSICS!!!**

A boat moves at 7.00m/s relative to the water. (You can neglect relativity at these slow speeds.) The boat travels 100 m downstream and then 100 m upstream, returning to its original point. Find the time for the round trip
*April 3, 2014 by Amy*

**Subjects and Prepositions. **

What is the compound or simple subject and compound or simple predicate in each sentence? draw t the line between the complete subject and complete predicate in each sentence. 1. People of all ages and abilities love sports. 2. More than 2 million athletes, representing 180 ...
*October 15, 2012 by Kimberly*

**Phyiscs**

two examples of everyday devices of relativity? besides a gps?
*November 29, 2009 by Jordan*

**statistics**

The marketing department of a company would like to introduce 12 monthly special products in the coming 12 months. If these monthly special products are selected randomly from 24 products, find the probability that two specific products are the monthly special products in two ...
*March 19, 2013 by Alberta*

**Guidance and Discipline Question**

Focusing on the person and their strengths and abilities is a way adults and children can help a child with ____________ adjust to the classroom. 1. special needs 2. behavior problems Wouldn't it be special needs? I am confused, because my friend says I am wrong. She says its ...
*January 12, 2007 by Melody*

**Physics**

Hi. I am Walter White. I am good at chemistry but suck at physics. Can you help me? ---------------------------------------- Bob is traveling in a very fast space (v=0.8c) away from Alice, who is sitting still in an observatory watching him through a very good telescope. Bob ...
*January 14, 2013 by Walter White*

**English**

1. Why are you special? 2. How are you special? - I don't tell great jokes, but I am a good listener. I always listen to my friends carefully. so I have many friends. (Which question is suitable for the answer, #1 or #2?)
*March 8, 2013 by rfvv*

**biology**

Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work...
*September 5, 2013 by loli*

**AED 222**

Can anyone please help me on this. I am having trouble trying to figure out what to write. Use the infromation you gathered throughout the course to distinguish what you think is the greatest strength and the greatest weakness of the current special educational system in ...
*September 20, 2010 by Rayna *

**Statistics PLZ HELP Urgent!!!!**

PLZ Help me with the following questions! very urgent! The marketing department of a company would like to introduce 12 monthly special products in the coming 12 months. If these monthly special products are selected randomly from 24 products, find the probability that two ...
*March 19, 2013 by Alberta*

**Physical Science**

Four groups of rats are tested in a lab. Group 1 is given a special hornmone for muscle growth. Group 2 is given a special multivitamin diet. Group 3 recieves both the hormone treatment and the multivitamin diet. Group 4 does not recieve any extra treatment or special diet. ...
*January 6, 2011 by Vegeta Super Saiyan 3*

**Physical Science**

Four groups of rats are tested in a lab. Group 1 is given a special hornmone for muscle growth. Group 2 is given a special multivitamin diet. Group 3 recieves both the hormone treatment and the multivitamin diet. Group 4 does not recieve any extra treatment or special diet. ...
*January 7, 2011 by SHAZAM*

**physics**

The finding that light in free space has one speed, and one speed only, is consistent with ____________________. A) the conservation of energy as shown by Maxwell.B) general relativity.C) Newton's laws of motion.D) electromagnetic induction. My book tells me it is A and D but ...
*April 28, 2012 by Kristie*

**educational psychology**

basic progression of events from the student being identified as needing special education to the student receiving special education.
*October 13, 2010 by Sarah*

**Math--Please Help!!**

Auto parts dept. sends out a mean of 6.3 special orders daily. What is the probability that, for any day, the number of special orders sent out will be at least 4?
*December 19, 2011 by Tanya*

**science**

light affected by gravity in einsteins general theory of relativity Look below at yopu previous post. I tried again
*April 1, 2007 by Kelsey*

**math**

My mother loves pink roses. On mothers day I planned om buying her a half dozen roses for $20.00 but I noticed a sign that read, special, get your mother a rose for $3.00 each. How much would I save if I went with the special?
*February 26, 2014 by mae alice*

**check 3 quick physic questions**

Identify the areas of physics involved in each of the following tests of a lightweight metal alloy proposed for use in sailboat hulls: a. testing the effects of a collision on the alloy Would this be relativity since relativity includes particle collisions? b. testing the ...
*August 22, 2006 by Anonymous*

**modern physics - relativity**

A photon of energy E collides with a stationary particle of rest mass m0 and is absorbed by it . (A) what is the velocity of resulting composite particle ? (B) What is the mass of the resulting composite particle ? use conservasion of energy / momentum please show working
*June 7, 2011 by walter *

**????Math Question????8th grade adv.math**

Algebra! How is the distance formula and the pythagorean theroem similar? The distance formula follows from the pythagorean theorem. You have to apply it twice: If (x1, y1, z1) are the coordinates of a point 1 and (x2, y2, z2) are the coordinates of point 2, then the distance ...
*February 7, 2007 by Alex*

**Special Education Setting Teachers Aide**

children with a language or speech disorde are A)sometimes suffering from an aphasia.(my answer) B)always learing challenged. C)able to receive special help only after the third grade. D)unable to use communication boards. can someone please check if this is right please
*September 26, 2013 by cathy*

**behavioral statistics**

How could you use standard scores and the standard distribution to compare the reading scores of two students receiving special reading resource help and one student in a standard classroom who does not get special help?
*February 25, 2014 by michelle*

**Special Education**

In the context of educating children with special needs, Clinical teaching : a) implements educational assessment b) requires rigid instructional methods c) is conducted by specialist clinicians d) is not suitable for students with learning difficulties I don't think its c) ...
*October 16, 2007 by Geo*

**Physics**

The parabolic TV antenna recieves electromagnetic waves from satellites. What is special about these rays?
*May 9, 2012 by Celina*

**social studies**

Can you tell me the definition of the term "special purpose map"? Here are MANY examples: http://www.inweh.unu.edu/unuinweh/Mapdatabase/Special%20Purpose%20and%20Historical%20maps_1.html How do you think you can describe these? Please re-post with your response and someone ...
*September 24, 2006 by Camille*

**Diversity**

Children with special needs may have delays or be slow to progress in one or more areas. They A. usually require special equipment to help them move around. B. need oportunities to interact with nondisabled children. C. have difficulty fitting in with other children. D. are ...
*June 14, 2013 by DEE-DEE*

**Math**

On Saturday, 124 customers went into the Sandwich Shop. Of those customers, 1/4 ordered the lunch special. How many customers ordered the lunch special?
*May 18, 2011 by Jessie*

**chemistry**

3 part question If an object is completely submerged in a liquid, what volume of liquid does the object displace? List the special waste disposal instruments that must be followed. List the special safety precautions that must be taken.
*February 4, 2014 by CeeCee*

**math**

There are 250 applications for special training at the police academy. Only 40% of the applicants will be interviewed. However, only 46% of the persons interviewed will be ultimately chosen for special training. How many applicants will be selected?
*December 12, 2010 by candiie*

**celebrating Diversity**

Children with special needs may have delays or be slow to progress in one or more areas. They A.usually require special equipment to help them move around. B. need opportunities to interact with nondisabled children. C. have difficulty fitting in with other children. D. are ...
*October 22, 2014 by Amanda*

**Statistics Help please**

Is Scanner Accuracy the Same for Specials? In a study of store checkout scanning systems, samples of purchases were used to compare the scanned prices to the posted prices. The accompanying table summarizes results for a sample of 819 items. When stores use scanners to check ...
*April 8, 2013 by Bettie*

**Stats**

What is the probability that a simple random sample of 56 special orders will provide an estimate of the population proportion of special orders specifying the color black that is within plus or minus .05 of the actual population proportion,assuming p = .36? In other words, ...
*May 4, 2010 by Anon*

**English**

What did the family do? 1. The family gave special rice cake to their new neighbors. 2. They gave special rice cake to their new neighbors. 3. He or she gave special rice cake to their new neighbors. 4. He gave special rice cake to their new neighbors. (Which answers are ...
*September 16, 2009 by Tom*

**Child Care**

Children with special needs may have delays or be slow to progress in one or more areas. They A. usually require special equipment to help them move around. B. need oportunities to interact with nondisabled children. C. have difficulty fitting in with other children. D. are ...
*February 10, 2009 by Cynthia*

**calculus - limits**

In the theory of relativity, the mass of a particle with velocity v is m = m0 / sqrt(1-v^2 / c^2) where m0 is mass of the particle at rest and c is the speed of light. What happens as v approaches c^-?
*October 1, 2009 by Marina*

**math**

In the theory of relativity, the mass of a particle with velocity v is m=mo/(square root ((1- v^ 2)/ c^2)) where mo is the mass of the particle at rest and ci s the speed of light. What happens as v goes to c?
*August 13, 2010 by Jin*

**Calculus**

I don't understand this question. Q. In the theory of relativity, the mass of a particle with velocity "v" is m = mo/√(1-v2/c2) where mo is the mass of the particle at rest and "c" is the speed of light. What happends as v-->c-? Thank You!
*October 5, 2010 by George*

**geography**

In South Asia, where does rain fall in August? In February? What are the seasonal changes caused by the movement of the ITCZ. I know that the Intertropical Convergence Zone is related to the Asian monsoon, but I'm confused on their relativity. Please help me clarify this ...
*October 20, 2008 by jennifer*

**physics**

What's inertia? Inertia is the tendency of an object at rest to remain at rest; or the tendency of an object to continue moving if it is moving. In plain language, it's the tendency of an object to want to continue doing whatever it's doing. I had a definition years ago given ...
*February 8, 2007 by Jacob*

**early childhood education**

children with special needs may have delays or be slow to progress in one or more areas they a)usually required special equipment to help them move around b)need opportunities to interact with nondisabled children c)have difficulty fitting in with other children d)are good ...
*August 14, 2011 by Donna*

**Algebra1**

Sally bought some ordinary pencils and 4 times as many special pencils. Each ordinary pencil cost $0.20 and each special pencil cost $0.35. She spent $14.40. How many of each pencil did she buy? Please show me how you got your answer. Thank you.
*October 5, 2009 by Samantha*

**Science**

Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case they are supposed to staple a set of papers). Group A is given the special juice to drink while they work...
*September 6, 2007 by Cheyenne*

**Venus (URGENT)**

Okay, i'm doing this Planetary tourism brochure assignment. I have to make a brochure about the planet. What are some special natural features and attractions on Venus. (special moutains, craters, canyons, surface spots.) Be creative in your descriptions, don't list facts. How...
*April 29, 2009 by John*

**accounting**

The cash payments journal used in this problem has only three special amount columns. Under what circumstances would you recommend that additional special amount columns be added to a cash payments journal?
*April 10, 2013 by Iriy*

**accounting**

The cash payments journal used in this problem has only three special amount columns. Under what circumstances would you recommend that additional special amount columns be added to a cash payments journal?
*April 14, 2013 by Jady*

**math**

The local pizzeria is advertising a special where you can get a large pizza with up to 3 different toppings for only $10. If the pizzeria offers 11 different toppings, how many different types of pizza can you get in this special deal?
*August 15, 2013 by Anonymous*

**Math (sort of?)**

Does anyone know how to get the special NY pages on an online textbook????? I forgot my textbook at home and the pages i need are in special ny pages, but i cant find those on the online textbook!!! HELP!!!!!!!!!
*May 12, 2009 by Delaney*

**Grammar**

The hearing-impaired child needs special accommodations for the field trip. OR The child needs special accomodations for the field trip.
*November 30, 2008 by Dorothy*

**Physic (Relativity)**

ions have a half life of 1.8*10exp(-8)sec. A pion beam leaves an accelerator at a speed of 0.8c, What is the expect distance over which half the pion should decay: (a) classically (b) relativistically
*January 2, 2010 by John*

**language arts**

Having trouble deciding on a review question between and or but. The sentence says, "Newton's ideas about motion are called laws, (and, but) Einstein's idea about relativity is called a theory." Thanks.
*April 10, 2012 by Brandi*

**math**

an open rectagular box with length of 6 feet, width of 4 feet and height of 2.5 feet is to be painted on all exterior sides, including the bottom, with a special waterproof coating. Each gallon of this special coating covers 12 square feet of surface area and costs $36.00. The...
*February 18, 2014 by Mark*

**Chemistry**

My teacher provided info about a worksheet of problems. Special Heat of water: 4.184 Special Heat of Steam: 2.09 Special Heat of Ice: 1.8 Based on this info, and the notes we have taken on phase changes, we are supposed to find out how much energy is needed to change certain ...
*February 14, 2008 by Meg*

**English**

Q: What did the Korean family give their neighbors? 1. They gave their new neighbors special rice cake to say hello. 2. He or she gave his or her new neighbors special rice cake to say hello. 3. He gave his new neighbors special rice cake to say hello. (Which answer to the ...
*September 16, 2009 by Tom*

**poem**

Is this poem good or bad? What is love? It's a special feeling Deep inside our hearts That is very reavling What is love? It's a special part of life The two of each other together Forever in each others lives What is love? It's in a shape of a heart Caring for one another ...
*January 15, 2009 by Kiki*

**statistics**

The deli special lunch offers a choice of three different sandwiches, four kinds of salads, and five different desserts. Use the multiplication rule of counting to determine the number of different lunches that can be ordered using the deli special lunch option, if each ...
*October 9, 2011 by Brandon*

**Chemistry! Please Help!**

My teacher provided info about a worksheet of problems. Special Heat of water: 4.184 Special Heat of Steam: 2.09 Special Heat of Ice: 1.8 Based on this info, and the notes we have taken on phase changes, we are supposed to find out how much energy is needed to change certain ...
*February 14, 2008 by Meg*

**AP Statistics**

When finding a confidence interval for a population mean based on a sample of size 11, which assumption is made? The standard deviation is fixed. The sampling distribution of z is normal. The sampling distribution of the sample means is approximately normal. There is no ...
*October 29, 2012 by Anonymous*

**relativity **

A particle called neutral pi meson (or pion) decays into two photons (and nothing else).If the pion (whose rest mass is 135Mev) is initially at rest, What are the energies of the photons? How are they moving with respect to each other ?
*June 7, 2011 by walter *

**relativity **

Show that the following process is dynamically inpossible: A single photon in empty space is transformed into an electron and a positron, each with rest mass m(e).Explain in detail, How can this this process be made possible? In this case, what is the minimum photon energy ...
*June 7, 2011 by walter *

**Physical Science**

Important support for General Relativity came from studies of the precession of the orbit of....what planet? It wasn't precession, it was rotation of the major axis direction of the elliptical orbit, also called "perihelion shift". The planet was Mercury.
*March 29, 2007 by Gina*

**Poetry**

What does "To be great is to be misunderstood" by Emerson mean exactly? I think he meant something along the lines of this: In 1920 in London, at a conference of the world's greatest physicists...someone remarked to Einstein that only three men understood the concept of ...
*January 28, 2007 by Tabby*

**Science**

Which of the following statements is most closely associated with Einstein's general theory of relativity? The gravitational constant has the same value everywhere. Mass is equivalent to weight. Being in an accelerated frame is indistinguishable from experiencing gravity. The ...
*January 15, 2014 by Janet*

**childcare**

Why is the incubation stage of illness of concern to day care workers? A. child in this stage require a great deal of care and special attention. B.child in this stage often need special medical help c.child in this stage can often pass on the disease even though they show ...
*May 4, 2010 by Nicole*

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