# physics (special relativity)

73,781 results

### 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...?

### Physics

Explanation of twin paradox in regards to special relativity theory.

### 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 ...

### 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

### 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

### 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 ...

### 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 ...

### 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 ...

### Physics special relativity

The distance from earth to the galactic centre is 23000 ly. What constant speed would be required to make the journey in 30 y of an astronaut's lifetime? I know the answer should be 0.99999915c but don't know how to get there with time dilation or length contraction

### Earth Space

What is fission? How is Einstein's theory of special relativity expressed? What does each letter stand for?

### Physical Science

According to the special theory of relativity, all laws of nature are the same in reference frames that....?

### 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 ...

### 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...

### 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...

### 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...

### 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

### 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 ...

### 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 .

### 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

### 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

### 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.

### 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 ...

### 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?

### 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)

### 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 ...

### 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 ...

### physics

what has no beginning and no end. it is also considered as the medium for light in einstein's theory of relativity

### physics relativity

How fast would you need to be travelling relative to an observer in order for them to see a 15% increase in your mass?

### physics relativity

An observer on Earth sees you travel 1000 m at half the speed of light. What distance do you think that you travelled?

### 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

### 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 ...

### 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-...

### 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 ...

### 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, ...

### 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 ...

### 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 ...

### 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

### 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 ...

### English

1. They held special services for Christmas. 2. They held special services at Christmas. 3. They held special services on Christmas. -------------------------- Q1: Are they all correct? Q2: Were special services held on Christmas Day in #1? Or were special services held on ...

### 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 ...

### 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 ...

### 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, ...

### 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 ...

### 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 ...

### 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 ...

### 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?

### 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!!

### 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

### Phyiscs

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

### 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 ...

### 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 ...

### 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

### 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 ...

### 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 ...

### 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?)

### 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...

### 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 ...

### 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 ...

### 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 ...

### 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. ...

### 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. ...

### 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?

### 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

### science

light affected by gravity in einsteins general theory of relativity Look below at yopu previous post. I tried again

### educational psychology

basic progression of events from the student being identified as needing special education to the student receiving special education.

### 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?

### 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.

### 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.

### 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 ...

### 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?

### 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

### 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

### 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

### ????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 ...

### 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?

### 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?

### 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

### Physics

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

### 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?

### 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) ...

### 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 ...

### 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 ...

### 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 ...

### 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?

### 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.

### 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?

### 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^-?

### 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?

### 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!

### 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.

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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, ...

### 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 ...

### 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 ...

### 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 ...

### 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...