Sunday

February 26, 2017
Number of results: 72,321

**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 relativistic energy**

I'm not too good with these special relativity problems :/ The question is: A 20 kiloton bomb releases 8 x 10^13 joules. How much mass must be converted into other forms of energy? You are already given Energy, would I still use the E=mc^2 formula?? E=(2.0*10^7 kg)(3*10^8 m/s...

*September 12, 2015 by paul*

**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*

**Counting and Probability**

We call a number special if every digit in the number either is a 1 or borders a 1. For example, 11111, 13, 141, 1441, 515151, and 101 are all special, but 10001, 222, 122, and 1333 are not special. How many 2-digit numbers are special?

*October 20, 2015 by Mr. Alexander*

**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-...

*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*

**Children with Special Needs**

Hello! So I have a question regarding a topic to do on Children with special needs, so I have researched and chose children with special needs. Now I want your help in choosing a research question for example “Is childhood anxiety a result of one’s environment or their ...

*November 8, 2015 by Hello!*

**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*

**US goverment**

what is the difference between a regular session of congress and a special session of congress A. a regular session has all the members, while a special session only has a few members B. a regular session is for making laws, while a special session is for debate only C. a ...

*September 23, 2016 by Us*

**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*

**American government**

What is the difference between a regular session of Congress and a special session of Congress? A) A regular session has all the members, while a special session only has a few members B) A regular session is for making laws, while a special session if for debate only C) A ...

*October 7, 2016 by Nashaia*

**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*

**English**

The President detoured to Chicago for a special meeting. -------------------------------- What does the sentence above mean, #1 or #2? Is the special meeting in Chicago or anywhere else? 1. The President visited Chicago on the way to the White House to have a special meeting ...

*July 8, 2016 by rfvv*

**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*

**Phyiscs**

two examples of everyday devices of relativity? besides a gps?

*November 29, 2009 by Jordan*

**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*

**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*

**Language arts**

which is the best definition of the term ratio? An amount of one thing in relation to another•• A special mathematics number A set length of time A special mathematical tool Correct this

*February 22, 2016 by Tj*

**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*

**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*

**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 receives both the hormone treatment and the multivitamin diet. Group 4 does not receive 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 receives both the hormone treatment and the multivitamin diet. Group 4 does not receive any extra treatment or special diet. ...

*January 7, 2011 by SHAZAM*

**English**

You wil soon turn 16 and your parents have arranged a special birthday party for you.write an invitation card to your favourite teacher whom you want to deliver a message of support and motivation to you on this special day.how do i write it?

*July 23, 2016 by Mbaly nkosy*

**physics(relativity)**

A boy runs a 100m distance in 20s as measured by an observer on earth.how long does it take according to an observer in space ship moving with speed of 0.98c for the boy to complete the run? What is the length of the track according to the moving observer

*September 2, 2015 by ebraheem*

**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*

**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*

**Civics**

The Tampa Port Authority is one of the largest ports in Florida. It has been given the designation of special purpose district by the local government in order to increase efficiency. Why are special purpose districts created? Pls help lol.

*January 21, 2015 by Ruby :)*

**using skills**

Which is inappropriate as a section of the parent newsletter? A. Suggestions for supportive home activities B. The problems of individual children C. Special field trips and other special activities D. Math and science units that are currently being experienced my answer is b.

*March 5, 2015 by lauren*

**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*

**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*

**english**

The relationship between these two sentences are: Comparison Is this correct Many Hispanic girls celebrate their fifteenth birthday in a special way. Similarly, Anglo girls have a special party for their “sweet” sixteenth birthday

*March 25, 2016 by jennifer*

**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*

**Physics- Relativity**

A lighthouse sweeps its beam of light around in a circle once every 7.2 s. To an observer in a spaceship moving away from Earth, the beam of light completes one full circle every 9 s. What is the speed of the spaceship relative to Earth

*September 9, 2015 by John*

**????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*

**Reverse math confused**

Romita gets the sushi lunch special at Yoshi's. By using a coupon she receives $2.00 off the regular price p. Her total cost including 20 percent for tax and tip is $9.00. What is p the regular price of the lunch special?

*April 15, 2016 by Lissette*

**8th grade math**

Romita gets the sushi lunch special at Yoshi's. By using a coupon she receives $2.00 off the regular price p. Her total cost including 20 percent for tax and tip is $9.00. What is p the regular price of the lunch special?

*August 18, 2016 by Robin*

**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*

**Physics**

The parabolic TV antenna receives electromagnetic waves from satellites. What is special about these rays?

*May 9, 2012 by Celina*

**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**

Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade 10th Grade 11th Grade 12th Grade College Adult ...

*April 17, 2016 by Rameel*

**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*

**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*

**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*

**Geography (Ms.Sue ) Help**

The concept of the _______ of distance is illustrated by the fact that as cost increases with distance, interactions between people decrease. A. friction B. relativity C. flexibility D. erosion I am thinking either A or D. But can't decide.

*September 29, 2015 by Brooklyn*

**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*

**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*

**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*

**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*

**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*

**Civics**

Rick wants to support a bill that is about to be voted on in his state's legislature. How might Rick more effectively support the bill as a member of a special interest group? A. Rick's vote in the upcoming elections will count for more than it would have if he wasn't a member...

*May 30, 2015 by Maria*

**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*

**algebra**

Call a positive integer N ≥ 2 “special” if for every k such that 2 ≤ k ≤ N, N can be expressed as a sum of k positive integers that are relatively prime to N (although not necessarily relatively prime to each other). How many special integers are there ...

*October 6, 2016 by Dip*

**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*

**prealgebra**

a local pool charges a $6 sign up fee plus $2 per visit as as summer special. Another pool runs a summer special that only charges $3 per visit. Write a system of equations to represent this situation. Is it 6+ 2x=y 3x=y

*February 23, 2016 by mike*