Posts by Collin

Total # Posts: 74

math
Square root of 144+6'2

math
The value of a car decreases at a constant rate. After 1 year the value of the car is $20,000. After 2 more yearsit is $14,000. Write an equation in slope-intercept that represents the value y (in dollars) of the car after x years. What is the y-intercept of the line? In this ...

english poetry
What effect does Bryant’s use of personification of nature have on the theme of the poem "Thanatopsis"? Thanatopsis William Cullen Bryant (1794 – 1878) To him who in the love of Nature holds Communion with her visible forms, she speaks A various language; ...

english/reading
Which detail in the following excerpt exemplifies the psychological distress that Ichabod experiences? In the dark shadow of the grove, on the margin of the brook, he beheld something huge, misshapen, black and towering. It stirred not, but seemed gathered up in the gloom, ...

English/reading
Could it mean the devil?

English/reading
In this excerpt from the story, What does the Headless horseman foreshadow? I think it is death, is that right? " legend of sleepy Hollow"In the dark shadow of the grove, on the margin of the brook, he beheld something huge, misshapen, black and towering. It stirred ...

english
In this excerpt from "The Legend of Sleepy Hollow,” what is the foreshadowing? It [the tree] was connected with the tragical story of the unfortunate André, who had been taken prisoner hard by; and was universally known by the name of Major André's ...

Chemistry
Calculate the number of moles of Cl atoms in 6.28 mg CuCl2.

English
What is the irony is this passage? In that direction, my windows commanded an unobstructed view of a lofty brick wall, black by age and everlasting shade; which wall required no spy-glass to bring out its lurking beauties, but, for the benefit of all near-sighted spectators, ...

english
What is the irony is this passage? In that direction, my windows commanded an unobstructed view of a lofty brick wall, black by age and everlasting shade; which wall required no spy-glass to bring out its lurking beauties, but, for the benefit of all near-sighted spectators, ...

Math
Given that 1+2+3+...100= 100(1+100)/2. Simplify (x+1)+2(x+1)+...+1000(x+1)

Physics
Thanks, that clears it up a little. But would you be able to possibly plug in the numbers so that I could get a clearer image/reasoning of the answer? That would be greatly appreciated!

Physics
The distance of the parallel plate capacitor is 2.0 cm and the height it 1.5mm.

Physics
An electron traveling at 7.00 x 10^6 m/s enters and passes through a parallel plate capacitor. determine the electric field generated by the capacitor. note that the electron just clears the corner of the positive plate. PLEASE SHOW ALL WORK!!!

geography
How is Ancient Greece an example of innovation?

Physics
You want to pull a 35 kg steel safe across a pine floor. If the coefficient of static friction between steel and pine is .5, ow hard must you pull to get the safe to move

math
A sand box is 1 1/3 ft. tall and 1 5/8 ft. wide, and 4 1/2 ft. long, how many cubic ft. will it hold?

math
well i was really tired and i had to get it done as fast as possible before i sent it in and thanks for the tip about (1/3) didn't know that

math
find the slope of the following graphs. x -1,0,1,2 y 4,2,1,-2 a.1 over 2 b.2 c.-2* d.- 1 over 2 find the slope of the following graphs. x -2,2 y 5,1 a.3 over 2 b.1 c.-1* d.- 3 over 2 find the slope of the following graphs. x 0,3 y 0,2 a.2 over 3* b.3 over 2 c.3 d.- 2 over 3 ...

Science last question
its definitely A

Physics
A light plane is flying at 25 degrees east of due magnetic north, while ascending at 15 degrees above the horizon; the plane is flying at 40 m/s. Find the planes celocity true to the delta x, delta y, and delta z?

Statistics
a. .4332

English
Does the word rains in the following question need and apostrophe? The rains soft touch is healing.

chem
The normal boiling point of water is 100.0 C. Do you expect the boiling point of water to be greater than, less than, or equal to 100.0 C on top of Mt. Whitney, CA where the atmospheric pressure is significantly different than 760 Torr?

French
I need help revising my french composition. Here is the prompt and my response: Si tu pouvais voyager n’importe où irais-tu? Avec qui? Qu’est-ce que vous y feriez? Attention: tu vas avoir besoin de savoir quelle préposition va avec le pays, ville, ou &...

chemistry
What is the net ionic equations for: 1. Arsenic(III) iodide + Sodium sulfide 2. Lead(II) nitrate + Ammonium oxalate 3. Magnesium chromate + Copper(II) sulfate

physics
Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?

physics
Consider an aluminum wire with 1 mm diameter below its critical temperature of 1.2 Kelvin. It's critical magnetic field is 0.01 Tesla. What is the maximum current in Amps that you can send down this wire for it to remain superconducting?

electricity
Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?

math
3x3=9 12x12=144

math
3x3=9

ENG1511
Education open many doors for the majority,

5th grade math
tulips are planted every four feet in a rectangular garden the sides are 16 feet and 12 feet how many tulips are there?

math
tulips are planted every four feet on a rectangle the sides are 16 feet and 12 feet how many tulips are there?

Math-unit rates
20 mi in 5 h

chemistry
1.10 is allowed to react with 9.57 , producing 2.50 . What is the theoretical yield for this reaction under the given conditions?

CHEMISTRY
If 6.50 g of the unknown compound contained 0.217 mol of C and 0.433 of H, how many moles of oxygen,O, were in the sample?

College Physics
An electric dipole consists of 2.0 g spheres charged to 5.0 nC (positive and negative) at the ends of a 12 cm long massless rod. The dipole rotates on a frictionless pivot at its center. The dipole is held perpendicular to a uniform electric field with field strength 1400V, ...

math
All you need is the volume of a cylinder which is pi*r^2*height so 60436.36in^3=261.93Gallons

College Physics
A parallel plate capacitor is made of two 3.5 cm x 3.5 cm square plates that are separated by 1.6 x10 -5 m. The plates are charged to 4.8 nC each (positive and negative). An electron is released from rest at the surface of the negative plate and simultaneously a proton is ...

Physics!
Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...

Physics!
Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...

Physics!
An electron orbits a 3.0 cm diameter metal ball 5.0 mm above the surface. The orbital period of the electron is l2.0 micro seconds. What is the charge on the metal ball? I think I use E=kq/r*R but im unsure! Please help! Thanks

Physics
Two metal spheres with masses 4.0 g and 6.0 g are tied together with 6.0 cm long massless string and are at rest on a frictionless surface. Each sphere is charged to + 5.0 nC. a. What is the energy in the system? b. What is the tension in the string? c. The string is cut. What...

Chemistry
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant,S , calculate Zeff for these two ions. Repeat this calculation using Slater's rules to estimate the screening constant, S.

Chemistry
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency in heat transfer?

chemistry
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency in heat transfer?

Math
How do I illistrate Aunt May hides 10,000 dollars in $20 dollar bills under her mattress. If she spends $20 dollars every day, how many days will it take her to run out of money? Do I really need to draw 500 $20 dollar bills?

english
"I hear that Anne is just a silly little goat who doesnt know anything at all and imagines that shes learned a wonderful lot from books" This is found on page 46 and I think she wrote this section because she gets tired of people telling her she is too young and is ...

english
Alright, I am also reading Anne Frank, but I'm having trouble with the question about how Anne used humor to relieve the anxiety and boredom of living in the hiding?

Physics-Resonance
Sorry, but your answer is incorrect. Since the pipe is 3.00 m long and open at one end, the first resonance will occur with a wavelength four times the length of the pipe, or 12 m. Use 343 m/s for the speed of sound at 20°C. Velocity = Wavelength x Frequency Frequency = ...

chemistry
how many grams of beryllium chloride would you need to add to 125 ml of water to make a .050 molal solution

physics
a snowmobile has a mass of 2.5*10^2 kg. A constant force acts upon it for 60 seconds. The snowmobile's inital velocity is 6 m/s and its final velocity is 28 m/s. a) find its change in momentum of the ball. b) what is the magnitude of the force action upon it?

physics
a 4 kg model rocket is launched, shooting 50 kg of burned fuel from its exhaust at an average velocity of 625 m/s. What is the velocity of the rocket after the fuel has burned.? Ignore effects of gravity and air resistance.

math
i am an even number that has more ones than tens. My thousands digit is the quotient of 9 divided by 3 and my tens digit is the sum of 3 and 3. i have no hundreds. what number am I>

Business Computer Information Systems
While most people consider blogs and wikis to be less than credible, in fact a lot can be learned from them. These types of sites are set up so anyone with access to the Internet can contribute, and make their thoughts and ideas public. Wikis are mostly factual accounts; while...

Physics
26.9

space
It lets scientists know how fast its going, therefore letting them know what time earth will see it.

algebra
12x6=9x8

math
What is the value of 7n when n is 7,565?

Health
That's right and thanks for answering my question.

Math - 4th grade
It could be a line because a line segment.

physics
Runner A is initially 6.0 mi west of a flagpole and is running with a constant velocity of 4.0 mi/h due east. Runner B is initially 4.0 mi east of the flagpole and is running with a constant velocity of 5.0 mi/h due west. How far are the runners from the flagpole when they meet?

Math
Circle O is centered at the origin and has a radius of 5. Circle O' is the image of circle O after a translation of T1,2. What is the center of circle O'? What is the radius of circle O'?

Math
What single rotation is equivalent to Rotate 40 degrees circle, Rotate 60 degrees circle, rotate -10 degrees

calculus
Use the chain rule d/dx[f(x)^(n)]= (n(f(x))^(n-1))*(f'(x)).

calculus
y'=[(1/2)*(arctan(x))^(-1/2)]*(1/(1+x^(2)))

calculus
Note that f'(x) can be rewritten algebraically a f'(x)= x -(1/x). Now, take the integral (anti-drivitive) of f'(x) with respect to 'x' to obtain f(x). So, Int(x-(1/x),x)=((x^(2))/2)-ln(abs(x))+C To understand this you must first look at the rules of ...

Calculus
You are almost right but since u=-t^(2) the limits are [0,-25] then put them into e^(u) and you get, e^(-25)-e^(0)= e^(-25)-1 Then divide that answer by 5 thus the answer is, (e^(-25)-1)/5

calculus
sqrt(-16)=sqrt(-1)sqrt(16)=i sqrt(16)=4i sqrt(-25)=sqrt(-1)sqrt(25)=i sqrt(25)=5i I think you can see it now. Just remember i=sqrt(-1). And don't forget your properties of sq-roots.

calculus
Plug in dp/dt =-14 kpa/min because it is decreasing at a rate. So solving for dv/dt= (1-(V^(1/4)dP/dt))/((1/4)PV^(-3/4)). Your answer so be dv/dt= (1-((340)^(1/4)(-14))/((1/4)(87)(340)^(-3/4)).

Math
(square root 5) times (square root 12) x > 0, (square root x) times (square root 3x)

world history
what impact did the Reformation have on Western society

8th grade
I need a fable to copy.