Thursday
October 2, 2014

Posts by Brock


Total # Posts: 51

Physics
Two 34 −ìC charges are attached to the opposite ends of a spring of spring constant 150 N/m and equilibrium length 50 cm. that is the question I should probably know this but my brain is fried so far all I have is Original length = 50 cm = 0.5 m Let the spring ...
September 7, 2014

Government
What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A. Registration B. Precinct Divisions C. Political Socialization D. Franchising E. Gerrymandering
July 7, 2013

algebra
1/2-3m/4 +7=4m- 9- m/28
March 12, 2013

pre-calcus
In the following function determine the domain, range, and asymptotes. f(x)= 5*(1/3)^x
January 3, 2013

calculus
solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.
January 1, 2013

calculus
solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=2 what is the exact solution? a.)the solution set is ? b.)there are infinitely many solutions c.)there is no solution
January 1, 2013

calculususe the rational zeros theorem to list the
use the rational zeros theorem to list the potential rational zeros of the potential function. Do not attempt to find the zeros. f(x)=2x^5-x^3+8x^2+52
December 27, 2012

calculus
Use the intermediate value theorm to show that the polynomial function has a zero in the given interval f(x)=x^5-x^4+8x^3-5x^2-14x5;[1.4;1.5] find the value of f(1.4) f(1.4)= find the value of f(1.5) f(1.5)=
December 27, 2012

biology
waz up
December 1, 2012

Calculus
Write the statements for the basis, the induction hypothesis, and the induction step for the questions below. 1. 1 + 2 +…+n = n(n+1)/2 2. 1/1*2 + 1/2*3+…+1/n*(n+1) = n/n+1
August 8, 2012

AP Calc
Use mathematical induction to prove that the statement holds for all positive integers. Also, can you label the basis, hypothesis, and induction step in each problem. Thanks 1. 2+4+6+...+2n=n^2+n 2. 8+10+12+...+(2n+6)=n^2+7n
August 5, 2012

AP Calculus
* The sequence is geometric and the r=-11. Thank you for any help!
July 10, 2012

AP Calculus
Find the sum of the first n terms of the sequence. The sequences are either arithmetic or geometric. 13. -1, 11, -121, ...; n = 9 A. 235,794,769 B. 429,981,696 C. -429,981,696 D. 196,495,641 E. -196,495,641 F. -235,794,769 I know that n = # of terms (9) d = -11 a = -1 formula...
July 10, 2012

Calculus
Write the sum using summation notation. 2 + 5 + 8 + 11 + ... + 29 Also, I know that it is going up by 3 units. But I am not sure how to get it into the form below: example: 15 ‡” k +3 k-1
July 10, 2012

Calculus
Thanks Steve!
July 10, 2012

Calculus
Find the first 4 terms and the 8th term of the recursively-defined sequence. 4. v1 = 0.75 and vn = (-2)vk-1 for n>1 A. 0.75, 1.5, -3, 6; -192 B. -1.5, -3, -6, -12; 192 C. -1.5, -3, -6, -12; -192 D. 0.75, 1.5, 3, 6; -192 E. 1.5, 3, 6, 12; 192 F 0.75, -1.5, 3, -6; 192 Can ...
July 10, 2012

AP Calculus
Find the first 4 terms and the 8th term of the recursively-defined sequence. b1 = 2 and bk+1 = 3bk, for k>0 A. 6, 18, 54, 162; 13,122 B. 3, 6, 9, 12; 24 C. 5, 8, 11, 14; 26 D. 6, 12, 24, 48; 768 E. 2, 6, 18, 54; 4374 F. 2, 4, 8, 16; 256 Thanks!
July 10, 2012

Calculus
Write the equation of an ellipse with the foci (17, 0) and (-17, 0) and co-verticies (0, 15) and (0, -15).
July 5, 2012

Calculus
Complete the square to write the equation x^2 + y^2 - 6x - 2y + 4 = 0 in standard form. Use the standard form of the equation to identify the center and the radius of the circle.
July 5, 2012

Calculus
Let u = (-2,3) and v = (5,-6). Find the sum and the dot product of these two vectors.
July 5, 2012

Calculus
Find a unit vector in the direction of v = (1,-1). Write your answer as a linear combination of the standard unit vectors i and j. Round each component to the nearest hundredth, if necessary. A 0.71i - 0.71j B 0i - 0j C 1.41i - 1.41j D 1i - 1j E 2.83i - 3.83j F -1i - 1j
July 3, 2012

Calculus
Thanks dude! That was a tough question.
July 3, 2012

Calculus
Find the dot product of (u+v)*w u=-1,3 v=2,4 w=2,-5 Answer choices: A:37 B:-37 C:-29 D:-33 E:29 F:9
July 3, 2012

Calculus
u=-1,3 and w= 2,-5. Find the component form of the vector. 3. 2u + 3w A 0,1 B 5,-12 C 2,3 D 1,-2 E -3,8 F 4,-9
July 1, 2012

Math
811,450
July 1, 2012

Calculus
Yes
May 8, 2012

Calculus
Find the foci of the equation 25^2 + x^2 = 600 Thank you!
May 8, 2012

Chemistry
thank you.
March 24, 2012

Chemistry
Lewis Structure of Freon (CCI2F2)? And what is shape?
March 24, 2012

zoology
what is diastema
October 21, 2011

zoology
define stroke volume.
October 20, 2011

zoology
what is diastema?
October 20, 2011

zoology
what is the dental formula of rabbit?
October 20, 2011

physics numerical
a parallel combination of two resistors of 2ohm each has third resistor of 4ohm in series with the combination.if a battery of 10V with negligible internal resistance be applies across them,find the p.d. across the resistor.
October 20, 2011

physics numerical
an electron moving with the speed of 1067 m/s is passed into a magnetic field of intensity 0.1T normally.what is the radius of the path of the electron inside the field? if the strength of the magnetic field is doubled, what is the new radius of the path? (e/m=108*10611 C/kg)
October 20, 2011

physics numerical
a satellite orbitting the earth at the equator at a na ltitude of 400 km, has an antenna that can be modelled as a 2.0m long rod. the antenna is oriented perpndicular to the earth's surface. at the equator, the earth's magnetic field is essentially horizontal and has a...
October 20, 2011

physics numerical
a long horizontal wire is rigidly placed, carrying a current of 50a. another parallel long wire carrying a current of 40a is just supported above it.determine the distance between them at which the upper wire can be just supported by magnetic repulsion itself.(weight of upper ...
October 20, 2011

physical chemistry
if 10 litres of a solution of na2co3 contains 21.2g of na2co3, what is its strength?
October 20, 2011

organic chemistry
how could you obtain benzaldehyde from toluene?
October 20, 2011

math
what is 8/360
May 15, 2011

SCIENCE/BIOLOGY
How does alanine differ from glycine
January 25, 2011

physics
HAHA!
December 14, 2010

math
what is 1/4(5y-3)+1/16(12y+17)?
September 23, 2010

Physics
R=8.314 you also must convert 40cm^3 to m^3 1m^3= 10^6 cm^3
December 10, 2009

Physics
If a 2 m tall man is looking at a plane mirror from an eye which is 20 cm from the top of his head, what is the minimum length that the mirror must be so that he can just barely see his whole body in the mirror? How far up from the ground must the mirror be placed? I'm ...
February 24, 2009

Physics
(I'm not sure about the negative sign)
February 24, 2009

Physics
I got: Ho=100 cm Di=-24 cm Do=120 cm I rearranged -Di/Do=1/5 to get -5Di=Do. Then I substituted -5Di in for Do in 1/Do + 1/Di = 1/30 to solve for Di. Is that right?
February 24, 2009

Physics
KNOWNS: Diverging (convex) mirror Radius of curvature = 60 cm (f = 30 cm) M = 1/5 Hi = 20 cm UNKNOWNS: Ho? Di? Do? EQUATIONS: 1/Do + 1/Di = 1/f M = Hi/Ho = -Di/Do
February 24, 2009

Physics
Can mirrors create virtual inverted images?
February 24, 2009

geometry
how do you find the area of a parallelogram?
March 27, 2008

science-plz help this is so urgent!
Mamuairi Monument, this contains fresh water it tells you all the answers.
June 7, 2007

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