# physics( i have no idea how to go about gettign th

163,123 results, page 7

### Physical Education

Mandy wants to win the local youth tennis tournament next fall. Her coach has said that her serve is powerful enough, but she suggests Mandy train with a jump rope to improve her ability to cover more ground on the court when she’s playing. Why would her coach suggest using ...

### Chemistry

What NaCl concentration results when 209 mL of an 0.660 M NaCl solution is mixed with 492 mL of a 0.270 M NaCl solution? __ mol/.209 L = 0.660 M __ mol/.492 L = 0.270 M .. I have no idea how to solve this. I have no idea why I even set up the equation above when it's asking me...

### Spanish Literature

for my advanced spanish lit course I'm reading and presenting on the play "Historia del hombre que se covirtió en perro" by Osvaldo Dragún. I have to analyze and do a presentation on this piece of literature. After reading it I get a genral idea of the storyline however I'm ...

### Math

Consider the functions in the figure below. Find the coordinates of C in terms of b. So there are two functions. There is the y=x^2 u-shape and then a line in the middle of it with points (0,b) and (1,1) in that order from left to right. Farther to the left of point (0,b) is ...

TIgers pitcher justin throws a basketball staright upward 29.0m/s. Calculate A) the height to which the ball will rise b) the time it takes to reach the highest point c) the speed with which it will return to the same height which it was thrown d) the speed of the ball 2.50s ...

### English

I forgot to include the following statements. I hope you can have a look at them, too 1) embarrassed about/at (are the prepositions intercheangable?) I was embarrassed about how untidy my room was/at (about?) having to ask for money/ to ask for money. 2)I was cross/annoyed/...

### Physics

A plane can travel with a speed of 80 mi/hr with respect to the air. Determine the resultant velocity of the plane (magnitude only) if it encounters a: 10 mi/hr cross wind; 60 mi/hr cross wind; 10 mi/hr tailwind; 10 mi/hr headwind. I have no idea what equation to use to solve ...

### writing

or english, i have to write a creative paper about the stuff weve gone over in class. we have read one flew over the cuckoos nest, and a few other short sotries. i was wondering what i should write about becasue im stumped. this ranges all the way from re writing a scene from ...

### Science

idont understand anything about the big idea of energy plz plz Help

### English

Can you please tell me how to express this idea in English don't talk about me as ancient I'm old

### science(physics)

hi -- thank you for your help before-- that makes sense-- also, im stuck on this: if there is a negative2.5 microcoulomb charge 1 m away from a 6microcoulomb charge, then at what point (other than infinity) is the electric field = zero? Sorry, i have no idea how to do this, i ...

### Education/College

I have to invent a fictional character and do charts on them from infancy to early childhood,middle and late childhood adolescence, and early adulthood. I have to give this character a name , race, gender and parents. I will have to find pictures to portray my character at all...

### physics

I did a projectile motion lab, predicting where a ball would land before actually dropping it. I have to answer this question: you accounted for variations in the velocity measurement in your range prediction. Are there other measurements you used which would affect the range ...

### Physics

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline? I have no idea how to set this up. Any help?!

### Physics

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline? I have no idea how to set this up. Any help?!

### Physics

Can you please help me with the following questions. Thanks! How does Rutherford's model of the atom acoount for the back-scattering of alpha particles directed at the gold leaf? What is Bohr's key idea (involving matter waves) that makes the Bohr atom have discrete engergy ...

it says i must skip count by 10 for 1-100. then skip count by 3 for 1-100. then it says what do i see when i skip count by 10 and 3 for 1-100... i have no idea what they are talking about. plz help

### English

I have to draw Helen Robinson from To Kill a Mockingbird for English. I have no idea how to start or what she looks like. Any help?

### College-Article Review

Part A asks for: A one or two paragraph description of the work's physical structure and any information about the author you may have discovered (ex. magazine title, author, date published). ---Keep in mind that I cannot write a bibliography/works cited. The teacher wants ...

### eNgLiSh

If you have ever read The Five People You Meet in Heaven, do you know what the theme would be? I think it could be something like take the chances you get in life and use them because life isn't fiction, it's real, and sometimes you don't get a second chance. OMG, I have no ...

### English Lit

What does "your soul is the whole world" mean?? I have to write a paragraph with an example but I have no idea what to write. Thanks in advance

### algebra functions

can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do f(x)=x^2: g(x)=x-1/x

### Algebra

I have to simplify this: (x^(1/2) * z^(-4/5)^4 My work: x^2/z^(16/5) Correct? Simplify (3+5SQRT2)(4+SQRT10) I have no idea how to foil this one.

### Alg

I have to simplify this: (y^(1/4)*Z^4)^(-4/5) My answer: (2z)^(1/2)/4z^4 Correct? Simplify (3-2SQRT2)(SQRT6-5) I have no idea how to foil this one.

So the problem is y-2=y+2 Would I subtract 2, or add the two? because i know you have to do something with the two, but I have no idea what.. Thank you!

### physics

A bungee jumper of mass 75 kg uses a bungee cord with a relaxedlength of 50 m and jumps from a bridge that is 170 m above the ground. What elastic force constant is necessary for the bungee cord in order for him to jump safely. I have no idea what to do or even start this problem

### PHYSICS

What power (in horsepower) is developed by a grinding machine whose wheel has a radius of 8.10 in and runs at 2.50 rev/s, when the tool to be sharpened is held against the wheel with a force of 43.0 lb? The coefficient of friction between the tool and the wheel is 0.340 . Help...

### Social

Hi, I have to draw a cartoon 3-4 slides about capitalism and put like air bubbles with people talking. I was wondering if you have any ideas what the conversation could be about?

### social studies

I have to do this project about culture; and I'm trying to prove the point that different cultures consume and prepare food differently. I said that the Chinese use chopsticks, where we use forks here in America, but I would like to include one more example at least. So, if ...

### English

What principal idea about people does the story "Harrison Bergeron" convey? (Points : 5) Great art belongs to the few who can create it. Only a few people have the talent to become professional artists. The goal of equal rights for all should not erase the varying talents and ...

### physics

How do I do this ? Calculate the age of a plant sample that shows about one-eigth of the carbon 14 of a living sample. The half-life of carbon-14 is about 5760a I don't have the notes on how to do this one... Help

### 6 principals of art

I have to Draw 4 examples of the 6 principles of art. I have no idea what she is asking me to do. I can make dots all day but I don;t think this is what she is asking!!!! Help plzzzz.

### Logistics

Hi, I am taking a logistics class online through University of Phoenix and I am so lost. I have homework dure tonight and have no idea how to do it. Can anyone help?

1-cos (2A)/2sin A+ SIN (2A)= tan (A/2) I need to verify the identity I have no idea how to do that and I have a test please explain!!!

### physics

What mass of hot water at 70 degrees C must be added to 2000g of cold water at 5 degrees C to raise it's temperature to 20 degrees C? To be honest I really don't have any idea how to do this question. I would really appreciate help, thank you

### science fair ideas

PLZ help i have a science project due in less than a week and still have no idea what im going to do dose anyone have ideas for zoology science experiments?

### english

I'm going to 7th grade on september and i have no idea on how to write 10 journal entries based on a person's perspective and voice. I already finished my book Canyons only i have no clue what to do!

### Algebra III

3^2x - 6 x 3^x + 9 = 0 Solve for x I have no Idea what to do

### Math 115

16÷(-2)x 4 OVER 2^3 +4 I have no idea of how to do this

### math

Show that (f X g)(x) = (g X f)(x) = x for f(x)= 3x-5 and g(x)= x+5 / 3 I have know idea how to do this.

If (e^x)^-2 X (e^x)^2 X e^x = 1/e^2 find x? I have no idea how to do this

### Math equation

I have no idea how to solve this. f(x)=3x-4 a) f(10) b) f (-2) c) f (0) d) (b)

### Algebra 2

(a+3)^2/a-3/5/(a^2-9)= Pls help have no idea where to start

### Science

Does anyone have a science fair idea that doesn't explodes because i will have to present in front of people and it can't be a volcano.

### Physics

A 2.0 kg mass is attached to a string that is 1.0 m long and moves in a horizontal circle at a rate of 4.0 revolutions per second. a) What is the centripetal acceleration of the mass? I converted 4 rev/s to 25.13 rad/s and used the equation: a=rw^2 to get 632 m/s^2 b) What is ...

### math

i have one last question hannah sold some girl scout chips and received a 17% commission. if she makes about \$100 about how much did she have in sales? is it \$83.00

### Calculus

I have no idea what to do with this problem. Please help me found the basic formula. When Apollo 15 astronaut David Scott dropped a hammer and a feather on the moon to demonstrate that in a vacuum all bodies fall with the same constant acceleration, he dropped them from about ...

### Project

Hi! I seriously need help. The Cockington Green Garden search on google has not turned up ANY useful stuff on safety and rules at Cockington green gardens. I have looked on their site and still nothing. Please help me as this assignment is due on thursday. Thanks! If this ...

### u.s history

I have a test tomorrow in US history that I am studying for. My teacher told us that on the test we will have to put 10 of the most important and relavent things that happened from prehistory to 1824. I have a hard time learning history. I know the first and last thing she ...

### conclusions

What function do conclusions serve in essays? A. Conclusions provide the supporting details of an essay. B. Conclusions develop the main idea of an essay. C. Conclusions sum up the main idea of an essay. (MY ANSWER) D. Conclusions introduce new ideas important to the main idea...

### physics

Ok, so I know the different kinds of forces (applied, normal, gravity, parellel, and friction). And I know how to sub in other numbers for those forces ( for example, Parallel force is equal to mass times gravity times sine theta). I also know the "base" equation (a=net force/...

### Art

What is an artwork source, because I don't know what to put in that field. Is it where I got the my idea from in my drawing, if so would a book where I got my idea be ok? Thank you

### physics

List Daltons idea of an atom model.

### Calculus

Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right endpoint of each interval and please explain, using a graph of f(x), what the Riemann sum represents. My cousin needs help with her ...

### Financial maths

Tara is saving for an overseas trip. Her taxable income is usually about \$20 000. She estimates that she will need \$5000 for the trip, so she is going to do some extra work to raise the money. How much extra will she need to earn in order to have \$5000 after tax? Use any tax ...

### english

i have to make a poster using the following words: main idea, theme, generalization. i have to give the defintion and give examples. any suggestion how to do it. thanks

### Math

Can someone please help me with piecewise functions. I know what they are but when it gets to advanced i have ttrouble. s(x)= /x-2/ + /x-3/ + /x+1/ (/ / = 'modulus') Write as a piecewise defined function. Have no idea tbh. Thanks

### medical discourse

i have tomorrow a discusion about medical discourse.so i have to ask some questions about that.what can i ask my friends?f.e.did they have any bad experiences whit their doctors?any suggestions?

### Math

I have the answer to this question but I have no idea how to get there. Solve for all values of x if 0¡x¡2¥ð. cos©÷(4x)+cos(4x)=0 The answer I have is: x=¥ð/8, 3¥ð/8, 5¥ð/8, 7¥ð/8, 9¥ð/8, 11¥ð/8, 13¥ð/8, ¥ð/4,3¥ð/4, 5¥ð/4, 7¥ð/4

### math

I have to make a line segment that is 5000mm long I have no idea how long Can u help me?

### Physics

I have to create a teaching aid for physics based on the principles i have learnt like gravitation , mechanical properties and many more. I am not able to find the right experiment to demonstrate infront of my teacher.Please help me deal with this by providing information ...

### Physics

I have to create a teaching aid for physics based on the principles i have learnt like gravitation , mechanical properties and many more. I am not able to find the right experiment to demonstrate infront of my teacher.Please help me deal with this by providing information ...

### English

Red Scarf Girl - I need a 3-4 sentence summary, central idea, and a quote from the book that would support the central idea.

### CHEMISTRY--URGENT

HNO3 with pH 3 is mixed with 2 L KOH with pH 12. assuming volumes are additive what is the pH of the final solution? I have absolutely no idea how to do this. I do know the answer, though. I have a test tomorrow and I would really appreciate it if someone could help!!!!

### math help plz

In a set of data, the 25th percentile is 108 and the interquatile range is 32. expalin how you would find the upper quartile score. please help i don't help any idea about it....:(

### Speaches

When researching for supporting materials about the impact of violence in the media, it is a good idea to get assistance from this resource. A. Television B. Call-in radio C. Librarian D. Personal interview

### CarpeDiem

When researching for supporting materials about the impact of violence in the media, it is a good idea to get assistance from this resource. A. Television B. Call-in radio C. Librarian**** D. Personal interview

### linear algebra

Suppose that the sequence x0, x1, x2... is defined by x0 = 1, x1 = 4, and xk+2 = −6xk+1−8xk for k≥0. Find a general formula for xk. Be sure to include parentheses where necessary, e.g. to distinguish 1/(2k) from 1/2k. . No idea how to go about this, please help

### science/chemistry

I have to write a persuasive paragraph on the following question: What should be the job of a scientist?Pick one to argue: a) Create more synthetic substances. Fore example: synthetic elements, genetically modified food b) Study substances that naturally exist. I pick ...

I am supposed to state how the italicized noun clause is used, but I'm not sure how to tell the difference.. can anyone help? 1. [What I wanted to do] was to finish my work. S <---- i was thinking subject? OP PN or DO? 2. The valedictory prize will be awarded to [whoever ...

### Physics

Please help me with the following problem: Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this ...

find the mainMyth 1: You only need to read the material once. Textbooks are packed with too much information to understand, much less retain, in one reading session. This is particularly true if the information is new and unfamiliar. Most students who can read and retain ...

### Physics

A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the train is moving at 59.7 km/hr, in how short a distance can the train be stopped with a constant acceleration without causing the crates to slide? I ...

i have a question about Montana's franchising. we were asked to find out about Montana's cookhouse ongoing fees and the profit and revenue for it. I cant find anything about it online. So i wanted to ask about approximately what would the numbers be

In the diagram below, we have DE = 2EC and AB = DC = 20. Find the length of FG. I have no idea how to do this. I did a problem almost exactly the same and approached it the same way, it did not work.

### Math

–5p > –55 I have no idea what this means, im assuming I have to find p but i dont know even.. how to find p??? theres no instructions on how/what to do so if someone could explain to me what this is I would appreciate it soooo much

### Calculus

I actually have two questions: 4. An open box is to be made from a rectangular piece of material 3m by 2m by cutting a congruent square from each corner and folding up the sides. What are the dimensions of the box of the largest volume made this way, and what is the volume? 5...

### science

what are the vegetable parts of a plant? i have no idea

### Alg2

Rationalize the demoninator of each expression. (9y/x)^4 i have no idea how to do that

### math

write an equvilant expression of k+sr is i have no idea

### math

i need Help i have no idea how to simplify this expression! x/x+5 + 7x+10/x^2+5x

### algebra I

Please help I have no idea where to start. Solve for h 5h + 5+ 4h = 36

### Math

How do i graph the function y^2=x*(x-4)^2. I have no idea where to begin.

### english

i need 4 symbols that represnt me and i have no idea how to know what they are

### Calculus

What is the derivative of 3sin(4x)? I have no idea where to begin!!!

### Calculus

If f(x) = integrate t^2 from x to x^2, then f'(x)= f'(-1)= Please help! I have no idea how to approach this.

### History

Hi I need some help with my history homework I have answer all of the question I just need help with a few about the Sumerian civilization. I just want to get some idea so that I can research these topics better. 1.Type of Governmen- I just some general info here 2.Economic ...

### Physics

In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? I have no idea can anyone help?

### English

I have to write a paper on the Scarlet Letter and it says I have to list all symbols that the author uses, also including the literal meaning, the symbolic meaning, and give an example from the novel. I know a good many from reading the book, but I don't have all of them...I ...

### Trigonometry

This is more of an opinion question: I'm working on Verifying Identities but I always have trouble knowing where to start. Once my teacher points it out i'm like "oh, duh" but on my own I have not the slightest idea on how to begin these; especially the tricky ones. Does ...

### US History, History, Social Studies

Can anyone please help me with my US history writing? I am currently writing a paper related to the US policy in the Middle East. I have to write three policy recommendation to the US. My first idea is "The US step back from the Middle East"... But I'm not sure what to write ...

### English

1. I'm worried about my new school. Why don't you join a club? Why don't you make new friends? Why don't you talk with your homeroom teacher? Why don't you talk with the school counselor? Why don't you talk with the counseling teacher? --------- Are they all right? At the ...

### Politics

Hello! I have another question about Syria.. So I'm trying to write a congressional speech about why the UN should go and help Syria. I need to find 3 reasons to write about, but I only have 2 at the moment. My first reason is that the President of Syria is an extreme danger ...

### science

sorry to annoy anyone, but WHAT is the big idea of energy? i would really appreiciate a response In what context? Too much use. Not reneewable? Cost? availability? in the context of an ironsulphide reaction I still don't understand the question. explaining the iron/sulphur ...