Thursday
November 20, 2014

Posts by Collin


Total # Posts: 54

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?
September 17, 2014

Statistics
a. .4332
June 11, 2014

English
Does the word rains in the following question need and apostrophe? The rains soft touch is healing.
May 20, 2014

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?
May 12, 2014

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 &...
May 4, 2014

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
April 27, 2014

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?
December 1, 2013

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?
December 1, 2013

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?
November 30, 2013

math
3x3=9 12x12=144
March 29, 2013

math
3x3=9
March 29, 2013

ENG1511
Education open many doors for the majority,
February 28, 2013

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?
November 1, 2012

math
tulips are planted every four feet on a rectangle the sides are 16 feet and 12 feet how many tulips are there?
October 30, 2012

7th grade science help Ms.Sue please help
Connection academy Cheater;)
October 10, 2012

Math-unit rates
20 mi in 5 h
September 18, 2012

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?
March 28, 2012

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?
March 28, 2012

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, ...
February 8, 2012

math
All you need is the volume of a cylinder which is pi*r^2*height so 60436.36in^3=261.93Gallons
February 8, 2012

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 ...
February 8, 2012

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...
February 7, 2012

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...
February 7, 2012

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
February 7, 2012

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...
February 7, 2012

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.
November 14, 2011

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?
October 27, 2011

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?
October 27, 2011

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?
September 15, 2011

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 ...
June 28, 2011

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?
June 28, 2011

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 = ...
February 14, 2011

chemistry
how many grams of beryllium chloride would you need to add to 125 ml of water to make a .050 molal solution
February 3, 2011

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?
January 31, 2011

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.
January 31, 2011

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>
January 20, 2011

Physics
26.9
October 11, 2010

space
It lets scientists know how fast its going, therefore letting them know what time earth will see it.
September 9, 2010

algebra
12x6=9x8
September 9, 2010

math
What is the value of 7n when n is 7,565?
September 9, 2010

Health
That's right and thanks for answering my question.
September 9, 2010

Math - 4th grade
It could be a line because a line segment.
September 2, 2010

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?
September 1, 2010

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'?
March 3, 2010

Math
What single rotation is equivalent to Rotate 40 degrees circle, Rotate 60 degrees circle, rotate -10 degrees
February 25, 2010

calculus
Use the chain rule d/dx[f(x)^(n)]= (n(f(x))^(n-1))*(f'(x)).
November 10, 2009

calculus
y'=[(1/2)*(arctan(x))^(-1/2)]*(1/(1+x^(2)))
November 10, 2009

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 ...
November 8, 2009

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
October 29, 2009

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.
October 29, 2009

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)).
October 22, 2009

Math
(square root 5) times (square root 12) x > 0, (square root x) times (square root 3x)
September 7, 2009

world history
what impact did the Reformation have on Western society
February 5, 2009

8th grade
I need a fable to copy.
October 14, 2008

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