Friday
May 6, 2016

Posts by Cecille

Total # Posts: 32

Physics
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated at about 0.28 nm. Calculate the electrostatic force between the sodium ion and the ...
September 6, 2011

Physics
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated at about 0.28 nm. Calculate the electrostatic force between the sodium ion and the ...
September 6, 2011

Physics
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated at about 0.28 nm. Calculate the electrostatic force between the sodium ion and the ...
September 6, 2011

Physics
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated at about 0.28 nm. Calculate the electrostatic force between the sodium ion and the ...
September 5, 2011

Physics
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated at about 0.28 nm. Calculate the electrostatic force between the sodium ion and the ...
September 5, 2011

Calculus (pleas help!!!)
It's cubic centimeter per minute
April 12, 2011

Calculus (pleas help!!!)
Water is leaking out of an inverted conical tank at a rate of 1100.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 15.0 meters and the diameter at the top is 5.0 meters. If the water level is rising ...
April 12, 2011

Physics (please help!!!!)
I dont understand very well what I have to do...What I did before was v= P/W P= (mu(mg)+(1/2)(CD)(rho)Sv^3) w=36.0 MJ*20% V=((mu(mg)+(1/2)(CD)(rho)Sv^3)/ (36x10^6 *0.2) I plugged in the values and got .00217 L/s and then to get the gas mileage=(0.00218^-1 x30)/1000 13.84 km/L
April 12, 2011

Physics (please help!!!!)
A car experiences rolling (tractive) friction with coecient of friction mut = 0.0200, and turbulent-flow (bv^2) drag, with drag coefficient CD = 0.300. The car has mass (including fuel, which is a negligible fraction of the total) M = 1000. kg and frontal cross-sectional ...
April 12, 2011

Physics (please help!!!!)
A car experiences rolling (tractive) friction with coecient of friction mut = 0.0200, and turbulent-flow (bv^2) drag, with drag coefficient CD = 0.300. The car has mass (including fuel, which is a negligible fraction of the total) M = 1000. kg and frontal cross-sectional ...
April 12, 2011

Physics (please help!!!!)
car experiences rolling (tractive) friction with coecient of friction mut = 0.0200, and turbulent-flow (bv^2) drag, with drag coefficient CD = 0.300. The car has mass (including fuel, which is a negligible fraction of the total) M = 1000. kg and frontal cross-sectional ...
April 12, 2011

Physics (please help!!!!)
A car experiences rolling (tractive) friction with coecient of friction mut = 0.0200, and turbulent-flow (bv^2) drag, with drag coefficient CD = 0.300. The car has mass (including fuel, which is a negligible fraction of the total) M = 1000. kg and frontal cross-sectional ...
April 12, 2011

Calculus (can someone please verify this?)
Gravel is being dumped from a conveyor belt at a rate of 30 ft^3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 19 feet high? Vol = (1/3)pi (h^2/4)(h...
April 12, 2011

Physics
A projectile of mass m is launched from the ground at time t = 0, with speed v0, at angle theta0 above the horizontal. Aerodynamic drag is negligible. Write the kinetic, potential, and total energies of the projectile as explicit functions of time.
April 8, 2011

Calculus Please Help
Let f(x) = x^3 - x^2 + x - 1. Find an equation for tangent line to f at x = 2.
March 23, 2011

Calculus
Fill in the following table, where E(x) denotes the error in approximation of f(x) by T(x). x - 2 x 3 2.1 2.01, 2.001 f(x) T(x) E(x)
March 23, 2011

Calculus
Find the dereivative of: y =((x^2+1)/2)^6 I really don't know the process to do these one, I tryed to use the quotient rule but then I don't know how to do with the ^6 so I don't think that's the way to do it...
March 9, 2011

Calculus Please Help
A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following intervals, what is ...
February 22, 2011

Calculus Please Help
A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following intervals, what is ...
February 22, 2011

Calculus
The position of a particle moving along the x-axis is given by s(t)=2t2+4. Use difference quotients to find the velocity v(t) and acceleration a(t), filling in the following expressions as you do so: v(t)=limh->0 [_____ / h ] = ____ a(t)=limh->0 [ ____ / h ] = _____ ok ...
February 22, 2011

Calculus
The figure below shows a function g(x) and its tangent line at the point B=(2,6.8). If the point A on the tangent line is (1.94,6.87), fill in the blanks below to complete the statements about the function g at the point B. g(2)= _____ g(2)= _____ I found the slope and that ...
February 15, 2011

Algebra
Oh ok... thanks a lot, I was typing 12 all this time....
February 14, 2011

Algebra
I'm sorry, yeah it's ((2-h)^3 - 8)/h
February 14, 2011

Algebra
Use algebra to evaluate the limit lim h->0((2−h)^2−8)/h
February 14, 2011

Calculus
I tried and I got -1.17 for one of them... I plugged both answers and I just got the g(2) right, I'm not sure what to do now....
February 14, 2011

Calculus
If a figure shows a function g(x) and its tangent line at the point B=(2,6.8). If the point A on the tangent line is (1.94,6.87), fill in the blanks below to complete the statements about the function g at the point B. g(___) = ______ g(___) = ______
February 14, 2011

Calculus
If a figure shows a function g(x) and its tangent line at the point B=(2,6.8). If the point A on the tangent line is (1.94,6.87), fill in the blanks below to complete the statements about the function g at the point B. g(___) = ______ g(___) = ______
February 14, 2011

Calculus Please Help
Let f(x)=4−x^2. Find each of the following: (f(2+h)- f(2))/h = ________ lim h->0 (f(2+h)- f(2))/h = ______
February 13, 2011

Physics
I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the maximum height reached...
February 12, 2011

Physics...help please!
I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the maximum height ...
February 11, 2011

Physics
I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the maximum height reached...
February 10, 2011

Chemistry
A 6.0g of methane decomposes into 4.5g of Carbon adn 1.5g of Heydrogen. Determine the empirical formula of methane.
February 10, 2011

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