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Posts by Kate

Total # Posts: 2,023

pre calc
A ramp leading to a freeway overpass is 470 feet long and rises 32 feet. What is the angle of inclination of the ramp?

Physics 103
How do I start? Problem: A helium nucleus (m= 6.65 x 10^-27 kg and q = 2e)is initially at rest. It is accelerated through a potential difference delta V and then enters a region with a constant magnetic field of strength B= 4T. It enter perpendicular to the field and undergoes...

Physics 103
So I have a question about magnetism. A charged particle moves through a region of space and experiences no magnetic force. Does that mean that the magnetic field is zero?

math
i have the capacity of 1 literbut all the water in the ocean can not fill me up.what am i?

Chemistry
Bromine can be added to limonene to create a brominated compound. When 613 mg of limonene and 3.5 mL of a 10% (v/v) solution of Br2 in dichloromethane (a solvent) are combined, 959 mg of the product is isolated. Calculate the percent yield for this reaction. If the limonene ...

Physics
h t t p : / / i m g 7 1 5 . i m a g e s h a c k . u s / i m g 7 1 5 / 2 7 6 9 / c a p t u r e q u . j p g I need help with c. for a. I got v = sqrt(2gR) for b. I got v = sqrt(gR) for c. I'm stuck

RESPONSE to PreCalc
I like how Jishka adds random symbols to my posts lol awsome :O

RESPONSE to PreCalc
Makes complete sense thank you so much!!! My only question is how come we respect domains only sometimes... For example now sin©¬/cos©¬ = (1/a)/(¡î3/a) = 1/¡î3 tan©¬ = 1/¡î3 ©¬ = 30¨¬ or pi/6 then ...

Precalculs
I have no idea how to do these type of problems. -------Problem-------- Solve each equation on the interval 0 less than or equal to theta less than 2 pi 42. SQRT(3) sin theta + cos theta = 1 ---------------------- There is an example prior to the excersises that attempts to ...

Physics
h t t p : / / i m g 2 0 5 . i m a g e s h a c k . u s / i / c a p t u r e b b . j p g / i am stuck on part c how do i find work with out using the spring constant work equals force parallel times displacement at which the force is acted during... Work done by spring = .5 kx^2 ...

Math--Exponential Functions
Suppose an investment of $500 doubles in value every 15 years. How much is the investment worth after 30 years? After 45 years? please help!!! i don't even understand how to approach this problem! =(

Physics
hmmmmmm thanks

Physics
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 7 3 9 3 5 9 3 ok heres the problem in a picture h t t p : / / i m g 1 9 2 . i m a g e s h a c k . u s / i m g 1 9 2 / 4 5 0 0 / c a p t u r e x x w . j p g ok I called the 4 kg block m3 and the 2 ...

Physics
wait no 12 N

Physics
Is C just 9.8 N

Physics
Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown above. Calculate each of the following. a. The acceleration of the 4 kilogram block b. The tension in the string ...

physics help
is it no damping for all of them

physics help
f(x)=squareroot5cos1.2x f(x)=xsin4x f(x)=x^3sin5x

physics help
Damped Oscillations 1. (a) For each of following graphs, determine if graph shows damped oscillation. (b) if it shows damped oscillation : (i) identify damping factor (ii)where damping occurs Note : use a graphing calculator to sketch these graphs f(x) = ¡î5 cos 1....

5th grade
that is languages arts

reading/science
i really suck at spelling

reading/science
we have to readsearch in the plants i have the the plant uranus and i'm wondering if you can give me some websites

math
2

social studies
is it new brunswick,quebec,prince edward island,and ladrodor and thank you ms.sue

social studies
the great plains of canada are found in the canada provinces of

social studies
the appalachian mountain extend north from the united states into the canadian provinces of ______,______ ______,______ _____ _____,and _______

Earth Science
Upon what measurement is the Earth's latitude and longitude system based?

pre calc need help
A square is drawn inside a square. Find the area of the square as a function of the radius of the circle

ALGEBRA
the value, v, of a shopkeeper's inventory software program is given by v = 1/2t + 6, where t is the number of years since the shopkeeper bought the program. What is the program worth 4 years after it is first purchased? Plot the point with the given t-value, 4

Biology
why did the nuclei enriched fraction appear in the centrifuge fraction spun at the slower speed? Why didn't this fraction contain only nuclei(Why wasn't it pure?)?

Physics
1.04 m

Economics
This chart shows the components of nominal GDP for the years 2000 and 2001. All figures are in billions of current dollars. -------------------------------------------------------------------------------- Components 2000 2001...

Precalculus
I hope that the back of the book is wrong the back of the book tells me that the answer is - SQRT(5)/5 I get positive square root( 5) divided by 5 can you tell me if the answer is positive or negative if it is negative can you please explain why? Thanks! tan (theta) = 4/3, pi...

College Physics
You have 20 and 80 (unit is the upside down U) resistors in a circuit with a 100 V battery. A)These resistors are parallel. Find the current through each resistor and the voltage drop across each resistor. B) These resistors are connected in series. Find the current through ...

College Physics
It worked! :D

College Physics
The power dissipated by a light bulb increases by 50 W when the potential difference applied across the light bulb increases from 50 V to 100 V. Find the resistance of the light bulb.

College Physics
Thanks for the help! And BTW, I am not switching my name.

College Physics
How do I solve this problem: A particular wire has a current of 10A. A) How many electrons pass a fixed point every 5 seconds? B)If a wire has a radius of 2 x 10^(-3) m and the electron drift speed is 2.63 x 10^(-5) m/s, determine the number density of electrons in the wire. ...

spanish 2
i have to use 10

spanish 2
I need help with making an comic strip with 10 verbs in sentences that are in past tense. Any ideas how to start it??

PreCalculus
Hi I need some assistance on this problem find the exact value do not use a calculator cot[(-5pi)/12] Here is my attempt RT = square root pi = 3.14... cot[(-5pi)/12]={tan[(-5pi)/12]}^-1={tan[(2pi)/12-(8pi)/12]}^-1={tan[pi/6-(2pi)/3]}^-1={(tan[pi/6]-tan[(2pi)/3])/(1+tan[pi/6]...

math
how do you graph x^2+4x-1

spanish 2
How do you say these sentences in spanish in past tense. The dog took the letters to the mailbox. The dog is driving to the mailbox. The dog is reading the letter.

Statistics
Please post your response in this question here is my original question that didn't get answered. h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 4 5 5 3 7 3 0

Statistics
I don't mind you showing me the caluclator key strokes to do this or show me the mathematical way whice ever thanks Here is a simple probability model for multiple-choice tests. Suppose that a student has probability p of correclty ansering a question chosen at random form...

pre calc
so what will be the solution

pre calc
find delta in each of the following case: tan delta=-0.75

pre calc
express the followinf trig functions in terms of an acute angle. (a) cos 143 degrees (b) tan 192 degrees

spanish 2
Which question is addressed to "usted" (talking to someone with formal respect)? Con quien hablaste? ¿De qué hablaste? ¿Cuánto tiempo estuviste en el teléfono? Que compraste en la tienda? ¿Que hiciste después ¿...

biology
need help If one strand of DNA, had bases ordered ATCCGTC, what would be the bases of its other strand? Compare and contrast mitosis and meiosis as to: number of divisions, number of cells produced, number of chromosomes in parent cells and in gametes.

biology
Need Help with these questions If one strand of DNA, had bases ordered ATCCGTC, what would be the bases of its other strand? Compare and contrast mitosis and meiosis as to: number of divisions, number of cells produced, number of chromosomes in parent cells and in gametes.

spanish 2
I need help to translate these sentences in the past tense. What did you talk about? Did you go to sleep when you got off the phone? How long was you on the phone for?

pre calc
is 270 degreees equal to 3 pi/2

pre calc
so 150 degrees is 5 pi/6 and 180 degrees = pi

pre calc
Convert the following from degrees to radians leave your answer in terms of pi 150 degrees and 180 degrees

Christ chapel Acadamy: spelling
7-7-7 rule

Physics
were did this come from this is a momentum problem After some messey algebra it can be said that V_B = (2 m_A V_o_A)/(m_A + m_B) V_A = ( (M_A - M_B ) V_o_A )/(M_A + M_B) were did this come from??? were _B indicates a quantity realtive to B and _A indicates a quantity realitve ...

physics
A mass on the end of a spring is stretched a distance Xo from equilibrium and released. At what distance form equilbrium will it have (a) velocity equal to half its maximum velocity and (b) acceleratipon equal to half its maximum acceleration ? I understand (b) that's just...

physics
well know it's posting it twice :O

physics
ok i'm putting in physics it'll most likely change it watch A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the amplitude and frequency of vibration fi the fish is pulled down 2.5 cm more and ...

physics
A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the amplitude and frequency of vibration fi the fish is pulled down 2.5 cm more and released so that it vibrates up and down? I have a question about ...

physics
i did for some reason it changes it

jishka
A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the amplitude and frequency of vibration fi the fish is pulled down 2.5 cm more and released so that it vibrates up and down? I have a question about ...

algebra
so what are the 2 numbers

algebra
yes

algebra
One number is 4 times and then positive number. The sum of the two numbers is 620. Find the two numbers.

PreCalculus
post answer in this question so that way i don't have to search h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 4 9 4 6 3 7

geometry
Find the other endpoint of a line segment with the given midpoint and one endpoint. Endpoint: ( 6, -1); Midpoint:(15/2,2

Algebra
Can someone help me with this question. I thought it was quadratic but now I am not sure. State whether the equation represents a linear, quadratic, exponential function or none of the above. x^2+ 6 = -8 x

spanish 2
can you check these Ella gustar bailar yo gustar bailar nosotros gustar bailar Ellos gustar bailar

spanish 2
How do you say She like to dance. in these forms yo you you spoke (formal) = usted (el,ella) we they

Physics (algebra bit)
supposively the ansswer is 9.9 m/s and 4.9 m/s i do not see how to get these solutions

Physics (algebra bit)
I do not see how to do this problem One car has twice the mass of a second car, but only half a smuch kinetic energy. when both cars increase their speads by 7.0 m/s, they then have the sam kinetic energy. What were the original speeds of the cars?

algebra
what is the key sequence you would use on your calculator to solve 4x - 17 = 83

Algebra
Is this relationship linear? Tell how you decided. Write the equation for each linear relationship. X 1, 2, 5, 8, 10, 11 Y 1.5, 2.5, 5.5, 8.5, 10.5, 11.5

Algebra
I'm wanting to take the arctan of this by the way can i simplify this or express this into more simpler terms

spanish
what is the verb ending for the following verbos: llevar ganar caminar montar

algebra
how would I write an equation for the following linear relationships: (x5,y20),(x10,y30)(x15,y40)(x20,y50)(x25,y50)(x30,y50)

Algebra
The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula N=-t^2+12t+54 showing the noise level in decibels (N) as it relates to the time after the speaker stops talking in seconds (t). How many ...

algebra
The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula N = -r^ + 12t + 54 showing the noise level in decibels (N) as it relates to the time after the speaker stops talking in seconds (t). How ...

algebra
how would I write an equation for the following linear relationships: (x5,y20),(x10,y30)(x15,y40)(x20,y50)(x25,y50)(x30,y50)

english
3. going 4. give

english
3. going to 4. give you

english
3. going to the Gallery 4. give you the assignment?

english
Write down the COMPLETE VERB(s) in each of the following sentences. 1. She had been going to the mall. 2. The class seems to be learning! 3. We might be going to the Gallery later. 4. Did I not give you the assignment? 5. Did I not give you the assignment?

algebra
look at that like a fractiion byy the waay!!

algebra
5 6 - x - = 30 10 21 21 -- -> -- 441 147 there you go(:

math
a man has 6 houses, in each house he has 6 cats, Each cat has 6 whiskers on each whisker sits 6 fleas. How many in all?

Physics
If I wanted to right SIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n" above SIGMA and "i = 0" below it and then put a subscript "i" under the "F" thank you I have been woundering ...

Physics
If I wanted to right SIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n" above SIGMA and "i = 0" below it and then put a subscript "i" under the "F" thank you I have been woundering ...

voting
What are 3 pieces of information requested on a PA voter registration card? Name the 5 positions that comprise(or make up) an Election Board.

Precalculus
Hello, Thanks for all of the help guys. I really appreciate it. I was woudnering if you could show me how to do this step by step and the thought process that goes through your head while you do this. This way I will be able to try to solve some of these problems on my own ...

spanish 2
Choose the correct form of the verb for each sentence! decidir(to decide) Nadie ______________ su destino. Nobody decides his/her destiny.

Precalculus
this was the answer in the back book. I do not see how to get this though 5(x + 3)(x - 2)^2 (x + 1)

Precalculus
Factor completely 2(3x - 5)3(2x + 1)^3 + (3x - 5)^2 (3)(2x + 1)^2 (2) I'm not really sure how to do this problem I started out by rewriting this 6(2x + 1)^3(3x -5) + 6(3x - 5)^2(2x + 1)^2 I am unsure were do go from here...

Physics
[b]1. The problem statement, all variables and given/known data[/b] A 90 N sign hangs on the end of a 55 N beam supported by a wire as shown. The beam is attached to the wall by a hinge. What are the horizontal and vertical componetns of the force on the hinge? Notes: the sign...

Physics
Satna has delivered gifts to the good Atlatean children. Now his erindeer need to lift him out of the ocean. The density of ocean water is 1.025 g/cm^3 . Sant'as sled has a mass of 337 kg. Santa has a mass of 104 kg. Their combined volume .39 m^3. How hard do the reindeer ...

physics
i meant that sant's final velocity will be zero when both their masses are the same by the way not both of them only santas will be zero when they have the same masses

physics
Driving his sled in the dark, Santa(s) collides with a polar bear (b). After some messy algebra, it can be shown that: Vb = (2 ms Vos)/(ms + mb) Vs = ((ms - mb)Vos)/(ms + mb) What does this imply if Santa hi a cub? What does this imply if Santa and the bear are the same mass? ...

Physics
I believe I've done this right A penguin sildes 1.5 m/s across the ice on her belly. The coefficient of kinetic friction is .02 How far will she slide before stopping? I do not need to see the work to this problem just need to know if I did it right. I got about 5.7 m I am...

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