# Show that the equation 3x^2 - x^3 + 3 = 0 can be rearranged to give: x = 3 + 3 ---- x^2 x^3 = Divide by ? = x = 3 + 3 ---- x^2 Using Xn+1 = 3

62,835 questions, page 324-
## Math

A boat in calm seas travels 19 km east and 32 km south. Find the distance and direction of the trip, relative to the south. What is the distance? What is the direction? I'm confused about how to solve this problem. Could someone show me the steps?

*asked by Lisa on March 23, 2011* -
## Finance - Family Planning

You want to save for your child’s education, you can either choose an account that is federally tax free that earns 6% or a regular taxed invested that earns 7%. If your marginal tax rate is 25%, which should you choose? (Show your work)

*asked by Kenna on August 2, 2017* -
## math

Number of People You Have Known Who Were Victims of Homicide # of Victims Frequency 0 3944 1 279 2 97 3 40 4 30 Find the median. Note that the “4 or more” category is not problematic for it. I know that the median is the middle number. I got 1.5 but

*asked by mary on September 22, 2011* -
## math hw

steven bought four rare books that cost $130, $120, $80 and $75 respectivily. if he paid 1/3 of the total cost immediatly and the remainder in three equal payments, how much was each of the equal payments? please show work.

*asked by ellis on November 17, 2012* -
## Chemistry

Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine

*asked by Liliah on February 15, 2014* -
## statistics

Your friend is thinking about buying shares of stock in a company. You have been tracking the closing prices of the stock shares for the past 90 trading days. Which type of graph for the data would be best to show your friend?

*asked by blueyeshadow on January 6, 2011* -
## Math

A boat in calm seas travels 19 km east and 32 km south. Find the distance and direction of the trip, relative to the south. What is the distance? What is the direction? I'm confused about how to solve this problem. Could someone show me the steps?

*asked by Lisa on March 23, 2011* -
## statistics

The standard score for hours spent online at home for minnesotan was 3.00 approximately how many hours do minnsotan adults spend online at home? Show your work and round all cuclulation to the tenth

*asked by wally on March 21, 2013* -
## Precalculus /Algebra

Hi I know is is probably basic but can anyone assist with the following : Find all real Roots, expressing as whole # and # under radical sign, not as fraction. and factor completely f(x)= X^3-2x^2-15x+30 I got roots at 2 (x-2) and +/- √5 If someone

*asked by Steve on April 8, 2014* -
## Physics check

I just want somebody to check my answer on this problem please :-) There is a box which weighs 1000 kg. There is an applied force acting upon it with a force of 20000 N (horizontally). The mu is 1.2. What is the acceleration (again, horizontally) of the

*asked by Emily on November 5, 2007* -
## Statistics

test the claim that μ1 = μ2 Two samples are randomly selected from normal populations. The sample statistics are n1=11,x(bar)=4.8, s1=.76 n2=18, x(bar)=5.2, s2=.51 Assume that σ1 ≠ σ2 Use alpha = .02 I am not sure if this is a 2-sample t test or do I

*asked by Jen on August 20, 2009* -
## chemistry

How do you find the half-life of an element? Please explain and show me how to do this. I know the answer is 14.3 days, but I don't know how to work it. thank you! the problem is: After 42 days, a 2.0-g sample of phosphous-32 contains only 0.25g of

*asked by Ryan on December 13, 2007* -
## PHYSICS

27. Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown.

*asked by GILL on June 18, 2015* -
## math

A band that will be the opening act for a concert charges a $500.00 flat fee as well as 10% of all profits from ticket sales. If the band earns $1,200, how much was made in total ticket sales for the show?

*asked by Anonymous on January 4, 2018* -
## Physics

Starting from Newton’s law of universal gravitation, show how to find the speed of the moon in its orbit from the earth-moon distance of 3.9 × 108 m and the earth’s mass. Assume the orbit is a circle.

*asked by Calitryphosa on December 16, 2011* -
## Math

Steven goes to a game store. He purchases a new game system for $120. He purchased the game console for $82 and 2 used video games that were equally priced. How much did each of the video game cost? Show all of your work. Please help me with this question.

*asked by Jassy on January 2, 2018* -
## math - functions

I compute (109/3)^1/4 and store that value in A. Store 3 in P. Now compute f(7)= Pa^7 by typing: P x A x^y 7 ***My problem is that I don't know WHERE the x^y key is on a TI -83 Plus. Please help. Then I have to subtract this answer from the answer using a

*asked by x^y key on November 5, 2011* -
## Algebra 2

So I solved this problem but, strange as it sounds, I don't know how to do the work. Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers. Here's what I've got: y-8=x x+y=80 x=36 y=44 I

*asked by Louis on October 17, 2015* -
## essay

I have to write a 5 page essay over a television show. DO you know any interesting shows. I can write it over the whole season. It is due in 2 1/2 weeks. Thanks. ANy shows are allowed. Any rating is allowed (Mrs. Cherry (english teacher) said i could do

*asked by ☻i♥zee☻ on March 9, 2012* -
## geometry

*asked by Terri Search on March 10, 2011* -
## Modern World Studies

1. As industry spread, the British and German governments initiated reforms to improve workers’ lives. What motivated Bismarck to enact reforms in Germany? What kinds of reforms were enacted in Germany and Britain? Please give me information that answers

*asked by Julie on December 9, 2010* -
## Statistics

A superstore manager wishes to give out a survey to a sample of 25 of its workers. It wants the sample to be a good representation of the workers. The table shows the numbers of workers in each section of the work force: Working tills: 32 Stacking shelves:

*asked by David on October 10, 2010* -
## History

1. As industry spread, the British and German governments initiated reforms to improve workers’ lives. What motivated Bismarck to enact reforms in Germany? What kinds of reforms were enacted in Germany and Britain? Please give me information that answers

*asked by Anonymous on December 9, 2010* -
## physics

the peregrine falcon is the world's fastest known bird and has been clocked driving downward toward its pray at a constant vertical velocity of 97.2 meters per second. If the falcon drives straight down from a height of 100 meters, how much time does this

*asked by baylie on September 11, 2014* -
## social studies help plz!!!!!!!!!!!!!!

im doin a s.s project on christopher columbus's voyage and its kinda hard finding information!! can u give me any helpful websites?? This web site has a lot of good information about Columbus's voyages.

*asked by Crystal on January 9, 2007* -
## Government

Hello, I need this question explained. You don't have to give me the answer ,but I just need a break down ..in order to know what direction i need to go in. I know what it means to be political..I guess Im just confused by the question. Please Help ! (

*asked by Natalie on May 2, 2011* -
## chemistry

Question: how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? Could someone give me the setup for

*asked by sandy on November 22, 2011* -
## physics

An archer locks a 0.20kg arrow on a bowstring. Then the archer exerts an average force of 110N to draw the string back 0.60 m . Assume that friction is negligible . What speed does the bow give to the arrow? If the arrow is shot vertically upward,how high

*asked by Melissa on April 30, 2012* -
## computer science

suppose binary heaps are represented using a pointer-based tree representation instead of an array. consider the problem of merging binary heap LHS with RHS. assume both heaps are full complete trees, containing (2^L) - 1 and (2^R) -1 nodes, respectively.

*asked by chase on April 17, 2008* -
## Physics

The Earth's rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2006 the Earth took about .840 s longer to complete 365 revolutions than it did in the year 1906. What was the average acceleration of the Earth

*asked by Jack on October 23, 2011* -
## math

the diagram below represents a drinking glass of diameter 10cm. it is partially filled to a height of hcm with apple juice. (a) using 3.14 give an expression in term of h for the volume of juice. the actual volume of the juice is 0.471 litres. (b)

*asked by tia on October 19, 2010* -
## Chemistry

A saturated solution is made by dissolving 0.325 g of a polypeptide (a substance formed by joining together in a chainlike fashion some number of amino acids) in water to give 1.37 L of solution. The solution has an osmotic pressure of 4.13 torr at 28 °C.

*asked by Luke on July 14, 2014* -
## English

A major part of Chapters 8 – 14 is Huck’s adventure on the WALTER SCOTT. Huck mentions that he wishes the Widow Douglas could know about his efforts to save the men on the wreck. Pretend that you are Huck and write a letter to the Widow, explaining the

*asked by ELIZA T. on April 11, 2011* -
## PLS HELP NUTRITION

IRON DEFICIENCY ANEMIA PLEASE GIVE ME SOME IDEAS:) I HAVE MANY LINKS ALREADY Identify a government policy or health information that would have resulted from research of this condition or been developed to prevent this condition. How effective are the

*asked by Deepa on March 2, 2014* -
## BUSINESS

1. You've told Dan, a new contact, that you're looking for a qualified sales representative. Now you want to find out if there's any way you can help his business. What's an effective way to approach the question? A. Give him your business card and tell

*asked by Beatrice on February 11, 2014* -
## Food and Nutrition

IRON DEFICIENCY ANEMIA PLEASE GIVE ME SOME IDEAS:) I HAVE MANY LINKS ALREADY Identify a government policy or health information that would have resulted from research of this condition or been developed to prevent this condition. How effective are the

*asked by Deepa on March 2, 2014* -
## chemistry

how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2.

*asked by brian on September 24, 2006* -
## Psychology

Good day , please can you assist me with answering the following questions. There is a short paragraph describing a young man who has OCD symptoms. the questions are as follows "According to the DSM -IV diagnostic categories what diagnosis might you give

*asked by CATHY on April 12, 2013* -
## business

Major Tire Company's plant in Charleston, South Carolina was destroyed when Hurricane Hazel hit the coast. The company officially closed the facility after reviewing the damage and terminated all 500 workers. The company did not give the employees 60 days

*asked by vonnie on October 6, 2012* -
## MATH HELP PLEASE & THNX!

Hercules Films is deciding on the price of the video release of its film Bride of the Son of Frankenstein. Marketing estimates that at a price of p dollars, it can sell q = 300,000 − 15,000p copies, but each copy costs $4 to make. What price will give

*asked by Gabby on June 5, 2014* -
## college

Explain why housing prices vary from city to city. Clearly explain how supply and demand affect the prices of the homes and be sure to show your work.

*asked by Anonymous on July 23, 2009* -
## Math

ok 3 questions A. Is a polygon a plane figure (Always,sometimes,never) answer one of three B.find value of x X(squared) +x amd X(squared) + 4 C. Find x. X(squared) + 2x + 40 and x(squared) - x +190 If someone could show me how to do those that would be

*asked by Weston on September 12, 2010* -
## Chemistry

the activation energy for the decomposition of HI(g) to H2(g) and I2(g) is 186kj/mol. the rate constant at 555k is 3.42 x 10^-7 L/mol*s. What is the rate constant at 645K? Please Show all Steps! thank you!

*asked by Jack on October 26, 2010* -
## calculus

Can someone please help me with these two? im so lost and i really appreciate it if someone could show me what to do! 1) To evaluate lim x→infinity sqrt (x^2 + 4) first consider that as x becomes infinitely large, x^2+4 -> _____ 2)Find lim x→ infinity

*asked by maura (urgent!!) on September 12, 2012* -
## math

which figure does not show a line of symmetry? there's an isosceles triangle, a wide hexagon, a rectangle and a long pentagon i think its either the rectangle or the wide hexagon.

*asked by Gabby ( 5 grade) on April 15, 2012* -
## Chemistry

A first-order reaction has rate constants of 4.6 x 10^-2 inverse seconds and 8.1 x 10^-2 inverse seconds at 0 degrees C and 20 degrees C respectively. what is the value of the activation energy? Please show all steps!!

*asked by Jim on October 26, 2010* -
## maths

Given that vector c and vector d are non zero vectors such that vector c =x1i + y1j + z1k and vector d =(y1z2-y2z1)+(x1y2 -x2y1)show that the two vectors are perpendicular.

*asked by victor m on February 18, 2012* -
## math

Susan has 50 ft. of fencing in her backyard. What is the largest area garden Susan can create, show the gardens dimensions and explain how you know its the largest area

*asked by kaykay on January 9, 2011* -
## math

The theater group performed on Friday and Saturday night. Three hundred and twenty four attended on Friday, and 33 more attended on Saturday. How many people saw the show?

*asked by michelle on September 19, 2010* -
## math

Find coordinates for two points that belong to the plane 2x+3y+5z=15. Show that the vector [2,3,5] is perpendicular to the segment that joins your two points. Explain why [2,3,5] is perpendicular to the plane.

*asked by HELP!!!!!!!!!!!!!! on April 16, 2017* -
## science

express the component of a cross product vector C= A x B in terms of Levi civita product vector and the component of a and B, using this relation show that A . ( AxB ) = 0

*asked by vijaya on July 31, 2008* -
## Calculus

Find the anti derivative of the following: 1. u^-2(1-u^2+u^4)du 2. (sqrt(x)+ 3/x - 2e^(x))dx The anti derivative symbol is in front of the equations. Also need help on find f(x) so that it satisfies f'(x) = 1+e^x+1/x and f(1) = 3+e. Please show steps so I

*asked by Rene on April 16, 2013* -
## algebra..Matrix...math

Hi, Please help me to this question would prove less than 10 hours Athens has a population of n ,m club with any club membership is an even number and the number of members of both clubs to prove and show m

*asked by ali on May 28, 2015* -
## Geometry(Very Urgent!!!)

Triangle NQP is an equilateral triangle with the measure of angle N=5x-2y and the measure of angle P=x+2y. Find the values of x and y. Show all work to receive credit.

*asked by Abbey on November 5, 2008* -
## math

Please show me how to set this up and how to solve: A ribbon with straight edges has an area of 24 inches squared. Its width is x and its length is 2x + 13. What is the width of the ribbon in inches?

*asked by Jane on February 12, 2012* -
## Chemistry

A first-order reaction has rate constants of 4.6 x 10^-2 inverse seconds and 8.1 x 10^-2 inverse seconds at 0 degrees C and 20 degrees C respectively. what is the value of the activation energy? Please show all steps!! Thank You!

*asked by Jim on October 26, 2010* -
## math

A three person committee is formed with the following people to be considered: A, B, C, D, E. How many different three-person committees can be formed from these five? what is the best way to set up a diagram to answer this question? can you show how to do

*asked by chris on January 21, 2008* -
## MATH

To get an A in history, a student must score an average of 90 on four papers. Scores on the first three papers were 92, 83, and 88. What is the lowest score that a student can make on the last paper and still get an A? CAN YOU PLEASE SHOW IN DETAIL THANKS

*asked by lady bug on November 13, 2009* -
## Language Arts

"who are those old men bent over in the sunshine? Skeletons of corn" Which line or lines show the distressing tone of the poem 1. line 1 2. line 2 3. line 3 *** 4. lines 1 and 2

*asked by BoTheTruthThompson on March 26, 2017* -
## math

which figure does not show a line of symmetry? there's a n isosceles triangle, a wide hexagon, a rectangle and a long pentagon i think its either the rectangle or the wide hexagon.

*asked by Gabby ( 5 grade) on April 15, 2012* -
## Abnormal Child Psychology

Children with conduct problems generally show more anxiety than those without conduct problems, and children with a callous-unemotional interpersonal style show_____anxiety. A. more, less B. less, more C. less, less D. more, more

*asked by Anonymous on September 7, 2010* -
## reiny steve reiny damon!!! Damon help maths

If P(x) and Q(x) have a common factor (x- h),prove that (x-h) is also a factor of P(x)- Q (x).find the possible common factors when P (x)=ax^3 + x^2 - 15x - 18 and Q(x)= ax^3 - 14x - 12.also find the corresponding value of a. Plz show me step of work

*asked by youri on April 18, 2017* -
## PHYSICS

a motorcycle is driven 50 km west then 30 km south and 25 km 30 degree west of south show the vector diagram find the total displacement of motorcycle

*asked by Dulce on July 6, 2014* -
## Chemistry 101

The distance from the Earth to the sun is approximately 9.37 x 10^7 miles. How long does ti take for light from the sun to reach the earth? Speed of light is 3.00 x 10^8 m/s. Show work.

*asked by Lilly on January 19, 2016* -
## English

1. I'll keep my fingers crossed for you. [Do we have to use the fingers of both hands? Or do we use the right fingers alone? Do we have to show the back of the hand or the palm of the hand in this case?] 2. I'll cross my fingers for you. [Is this one the

*asked by rfvv on April 23, 2018* -
## Maths

An 24 hour digital clock is gaining three minutes every hour.If you set it to the correct time at 6pm on Saturday, when will it show the correct time again?

*asked by Yonwaba on February 21, 2019* -
## math

The ratio of games jsy won to the number of games he lost is 5:2 he won 20 games. how many games did jay lose? show oe explain how you got your answer.

*asked by jay on October 2, 2012* -
## Geometry

Use the Distance Formula and the x-axis of the coordinate plane. Show why the distance between two points on a number line (the x-axis) is | a – b |, where a and b are the x-coordinates of the points. How would I solve this?

*asked by Alexa on May 12, 2015* -
## Math

In a circus a tightrope is stretched from the top of a 10 ft. pole to the top of a 25 ft pole. The poles are 36 feet apart and vertical. How long is the tightrope? Show your work.

*asked by Amy on November 30, 2016* -
## Science

The current population in the United States is 318,968,000. The rate is .72. What will the population be in the United States in 10 years? Show work please.

*asked by Dena on February 2, 2015* -
## Calculus Help Please!!!

Consider the function f(x)= x −1≤ x< 0 f(x)=tan(x) 0≤ x ≤ π/4 a. Draw a neat sketch of this function. b. Is f(x) continuous at x = 0? (Justify your answer.) c. Is f(x) differentiable at x = 0? (Justify your answer.) show steps! Thanks!

*asked by Anonymous on April 8, 2014* -
## Chemistry

What is the IUPAC name and classify as primary, secondary or tertiary ..............__ 1. CH3CH2-O-/..\ .............\__/ 2. CH3 .......\ .......CH-CH2-CH2-OH ......./ ....CH3 3. CH3CH2CH2CH2CH2OH, i show this to be 1-Pentanol which is primary.

*asked by Mary on June 10, 2010* -
## Math

express the component of a cross product vector C= A x B in terms of Levi civita product vector and the component of a and B, using this relation show that A . ( AxB ) = 0

*asked by Indu on July 7, 2008* -
## Trigonometry

a 100 pound box hangs between two ropes T1 and T2 the angle at the top of T1 is 28 degrees and the angle at the top of T2 is 35 degrees. what does T1 and T2 equal? Must show work

*asked by Jon on November 15, 2013* -
## Pre-Algebra

Can someone show me how to solve this problem step by step?Here is the problem, 26cm/s= m/min,how to solve it by convert rate suing dimensional analysis.

*asked by kj on January 1, 2011* -
## Math

Consider the rectangle with an area of 24x^3-54x^2-15x, with a side length of 6x^2-15x. Write and simplify an expression for the length of the rectangle. ^ Could someone please show me how to do this?

*asked by -Untamed- on December 10, 2011* -
## math

Solve. Please show all of your work. Find the length and width of a rectangular lot with a perimeter of 108 meters if the length is 8 meters more than the width.

*asked by christine on August 15, 2011* -
## Math

A rectangular prism has a volume of 9 inches 3 cubed. The area of the base is 4 inches to 2 cubed. What is the height of the prism? Please show the steps to get the answer

*asked by Cheyenne on May 3, 2018* -
## Factoring

x2(squared)-4x+4 I would factor this into (X - 2)(X - 2) If you don't know the rules for factoring, post, and we can show you how to do it. I don't know the factoring rules. My algebra teacher couldn't teach.

*asked by Amanda on September 20, 2006* -
## Algebra Assignment

An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16 cups of apples and 15 cups of flour. When you sell these at the Farmer’s Market you make $3.00 profit per apple pie and $2.00

*asked by Sam on December 11, 2017* -
## algabra

the sum of a the digits in a two digit # is 11. if the digits are reversed, the new # is 45 more than the original #. What is this # !!! i need help AB is the two digit number A+B=11 10B + A= 10A + B - 45 solve. Ok, first. You would first bring both sides

*asked by me on March 7, 2007* -
## Algebra 1

So I attempted this and I'm not sure if it's the correct answer - and I don't know how to graph it.. Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected.

*asked by lost on September 16, 2014* -
## math

Number of People You Have Known Who Were Victims of Homicide # of Victims Frequency 0 3944 1 279 2 97 3 40 4 30 a. To find the mean, it is necessary to give a score to the “4 or more” category. Find it, using the score 4.5. (In practice, you might try

*asked by mary on September 21, 2011* -
## calculus

A cat, walking along the window ledge of a New York apartment, knocks off a flower pot, which falls to the street 210 feet below. How fast is the flower pot traveling when it hits the street? (Give your answer in ft/s and in mi/hr, given that the

*asked by M on November 21, 2018* -
## calculus

Find two unit vectors that make an angle of 60° with v = ‹3, 4›. Give your answers correct to three decimal places. I'm not sure what to do here; I believe that I use to definition of a dot product (or maybe cross product) with relation to the trig

*asked by angles on August 24, 2011* -
## MATH

Of the adult Fiji population, 42% has a rare allergy due to expose to domestic cat. A sample of 500 randomly selected adults resulted in 65% reporting the certain allergy. i)Describe the variable, population and sample. ii)Identify the parameter and give

*asked by FAKAAPO on August 31, 2011* -
## Math

The science test grades are posted. All students taking the test scored over 75. Unfortunately, 4 students were absent for the test and the computer listed their scores as 0 until the test is taken. Assuming that no score repeated more times than the 0's,

*asked by Vstar on January 4, 2016* -
## Language Arts

What is the purpose of the following stage direction from the play? Gluskabe and Grandmother Woodchuck sit inside with their blankets over their shoulders. A. to provide details about the way the stage should look B. to identify the setting for the first

*asked by Brooklyn on April 20, 2018* -
## English

For the essay question: Why did people hate Julius Ceasar so much? One of my answers was plain jealousy, that they could not achieve as much as he had. Could you give some more examples? Maybe that they disagreed with his leadership ideals. Thank-you Gina,

*asked by Gina on December 13, 2006* -
## Science

Your Science Club is tutoring some younger students in astronomy. You hear one student describe how people on Earth can never see “the dark side of the Moon.” You know that is an inaccurate statement. What reasons would you give to explain to the

*asked by Help! on April 24, 2018* -
## biology

Small gene big plasmid Question 2 Part E wrong. Question 2 Part F Determine the DNA sequence of PCR products. I do not understand how to handle this problem. On home works they were wrong and the solutions were confusing. Please give me a clue.

*asked by Al on November 16, 2013* -
## physics.

A steel beam is used in the construction of a skyscraper. By what fraction (change in L)/Lo does the length of the beam increase when the temperature changes from that on a cold winter day (-15 degree F) to that on a summer day (+ 105 degree F)? I got

*asked by Ruby on February 10, 2008* -
## Calculus

A company is designing shipping crates and wants the volume of each crate to be 4 cubic feet, and the crate's base to be a square between 1 and 1.5 feet per side. If the material for the bottom costs $5, the sides $3 and the top $1 per square foot. What

*asked by MEG on November 15, 2010* -
## Science

An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18.0 m/s northward and the air speed of the plane is 161 m/s. In what direction should the plane head to reach its destination. So I know the direction is south east but

*asked by Jane on April 30, 2008* -
## evaluation

let F(x) = x^2-2x if x2 Evaluate f(-2)= f(3)= f(2)= Your question tells you which function fo use for x=-2 and x=3. You have not provided data on which function to use for x=2. You may omitted a bar under either an > or < sign in your statement of the

*asked by Gwanda on November 14, 2006* -
## calculus

Find the tangential and normal components of acceleration of an object that moves along the parabolic path y=4x^2 at the instant the speed ds/dt=5. I know how to find the both these given a vector but no idea when given just a path and speed. i figured i

*asked by Bryant on May 8, 2012* -
## physics

A car with mass (452) kg attempts to make a turn with a radius of (31.8) m at a speed of (21.5) m/s on a horizontal surface. What is the minimum value for the static coefficient of friction between the tires and the roadway necessary for the car to make

*asked by dali on March 8, 2017* -
## tudelft

Consider p-type silicon in thermal equilibrium with an intrinsic carrier concentration ni=1.5xE10 cm-3 and a hole concentration of Po=3.0xE16 cm-3 . The lifetime of the minority carrier electrons is Tno=3.0xE-17. Calculate the recombination rate of

*asked by mame on July 18, 2017* -
## physics

You shoot a 57 gram dart vertically upwards from a catapult with a spring constant of 379 N/m. The catapult is initially stretched from the equilibrium point by 30 cm. What is the height above the starting point reached by the dart? Ignore air resistance

*asked by jake on June 9, 2014* -
## physics

Two large circular metal plates are parallel and nearly touching, only 4.1 mm apart. The two plates are connected to the opposite terminals of a 9 V battery. (a) What is the average electric field strength in the space between the plates? V/m (b) What is

*asked by dede on November 9, 2010*

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