
ELECTRICITY AND MAGNETISM
2. Find the charge in potential energy of the system of two charges plus a third charge q3= 3.00µC as the latter charge moves from the infinity to point P.
asked by Willard on March 19, 2017 
math
A rectangular poster has an area of 190in(squared). The height of the poster is 1in. less than twice its width. Find the dimensions of the poster.
asked by Anonymous on July 27, 2011 
math
theta is a first quadrant angle in standard position and cos theta = 1/(sqrt10) . Find the exact value of sin theta,
asked by Adam on March 30, 2013 
math
ab and ac are tangents to a circle with centre o. if angle bac is equal to 40 degree, find angle abc and angle acb.
asked by sha on December 25, 2016 
math
Another: theta is a second quadrant angle in standard position and tan theta =  (sqrt5)/(2) . Find the exact value of cos theta.
asked by Adam on March 30, 2013 
Physics
An object of mass 0.5 kg is whirled at the end of a string 0.8 m long.If the string makes three revolution in 1.2 s,find the tension in the string.
asked by Neha on July 18, 2014 
Calculus
Use the fourstep process to find the slope of the tangent line to the graph of the given function at any point. f(x) = 16  10 x Step 2: f(x + h)  f(x) = Step 4: f'(x) = lim(h>0)(f(x + h) f(x))/h =
asked by Shan on June 7, 2013 
Physics
Here, I am dealing with a Science formula for momentum. The formula is: M= mv So, I have: m= 10 grams (.01 Kilograms) v= 5,000 centimeters a second (50 m/s) It says to Find M and also solve the formula for M. Please help!
asked by Amal on June 8, 2010 
Trig
If cosx = 10/19 an pi < x < 2pi, find the exact value of cos x/2 Use the double angle formula. Cos 2Y= sin^2 Y  cos^2Y = 12Cos^2 Y. let y= x/2, and 2Y=x
asked by Ashley on April 14, 2007 
Physics
6m due south,10m due east and 5m due north. Find the distance traveled and the displacement of the vector
asked by Aly on July 16, 2017 
Algebra
Brian is 26 years oldr than his daughter Kim. The sum of their ages is twice the differences of their ages. Find theri ages.
asked by Anonymous on March 29, 2012 
math
Chord BC is drawn in a circle with a radius of 3cm. Chord BS is 4cm long. Find the perpendicular distance from A to chord BC
asked by Becky on January 20, 2013 
Physics
A golf ball is hit with a velocity of 24.5 m/s at 35.0 degrees above the horizontal. Find a) the range of the ball, and b) the maximum height of the ball
asked by Joy on October 10, 2011 
math
The price of an antibiotic decreased from $86.25 to $52.75 for a bottle of 100 tablets. Find the ratio of the decrease in price to the original price.
asked by ashleigh on June 28, 2010 
calculas
find the perimeter of the rectangle with maximum area that can be inscribed in a semicircle of radius 2 ft. if two of its vertices are on the diameter of the semicircle and the other two are on the semicircle.
asked by Anonymous on December 7, 2010 
Maths
The area of the 4 walls of a room is 168metre square the breadth and height of the room are 10m and 4m respectively. Find the length of the room
asked by Shehzad on February 8, 2018 
Calculus
F(x) = cos(x) • the integral from 2 to x² + 1 of e^(u² +5)du Find F'(x). When i did this, i got: 2xsin(x)e^((x²+1)² + 5) But my teacher got: sin(x) • the integral from x² + 1 of e^(u² +5)du + 2xcos(x)e^((x²+1)² + 5) Do you know why the
asked by Erica on October 17, 2011 
4th grade
I have to answer questions about Parts of a nonfiction book. example:second entry in index Where on line can I find a book that I can look in the entire book.
asked by Janice on February 25, 2009 
math
if 0< theta < 90 and tan theta equals pie3/2, find cos theta.i put 2/pie 7 but i was wrong please correct.
asked by anonymous on April 10, 2009 
math
A two digit numbers is three times the sum of the digits. It is 45 less than the number formed when the digits are interchanged. Find the two digits Please anyone to help me with solution
asked by kevi on June 6, 2019 
Calculus
The position, p(t), of an object at time t is given. Find the instantaneous velocity at the indicated time c. Also determine whether it is moving forward, backward, or neither at time c. p(t)=21/t at c=3
asked by Anonymous on June 20, 2016 
Math
In a right triangle, find the length of the side not given. Approx to the three decimal places. a and b are the length of the legs and c is the length of the hypotenuse. b = 4"sqrt"2 and c = 9
asked by Marie on March 3, 2012 
physics
The Young's modulus for steel is 2x1011 and its rigidity modulus is 8x1010 Nm2. Find the Poisson's ratio and its bulk modulus.
asked by pramod on March 27, 2012 
Math
P,Q and R are points on the same horizontal plane. The bearing of Q from P is 150 and the bearing of R from Q is 060. if PQ=5 and QR=3, find the bearing of R from P, correct to the nearest degree.
asked by Joseph Agber on June 3, 2019 
Algebra
Find all of the zeros of the polynomial function and state the multiplicity of each. f (x) = (x^2 – 16)^2 – 4 with multiplicity 2 and 4 with multiplicity 2 I think this is the ans for this equation. Anyone care to chime in? Thanks!
asked by Angie on July 24, 2009 
chemistry
Find the mass in grams. a. 4.30 x 10^16 atoms He, 4.00 g/mol b. 5.710 x 10^23 molecules CH4, 16.05 g/mol c. 3.012 x 10^24 ions Ca^2+, 40.08 g/mol
asked by jaz on March 16, 2009 
geography
i have a slide presentation due on monday and i have one slide left but i cant find anything at all on it. the slide is “economic problems in pakistan and solution”
asked by bree on May 19, 2019 
physics
A charge of 3.75 109 C is located 3.1 m from a charge of 3.10 109 C. Find the magnitude of the electrostatic force exerted by one charge on the other. a)increases or b)decreases or c)remains the same
asked by Sonam on March 14, 2009 
calc urgent
let P be the portion of the disk x^2 + y^2
asked by adriana on December 14, 2014 
Maths
If a number is chosen at random from integers 5 to 25 inclusive, find the probability that the number is (a) multiple of 5 or 3 (b) even or prime number (c) less or greater than 18
asked by Queeneth on May 29, 2016 
MATH Prob.
You are dealt two cards successively without replacement from a standard deck of 52 playing cards. Find the probability that both cards are black.
asked by Twg on August 8, 2009 
Calculus  derivatives of e
Find an equation of the tangent line to the graph of y = e^(−x^2) at the point (5, 1/(e^25)). My work: y' = 2xe^(x^2) y' when x = 5 = 10e^25 y  (1/e^25) = 10e^25 * (x  5) y = (10e^25) (x  5) + (1/e^25) This is incorrect. How?
asked by Anna on March 19, 2018 
College Algebra
A picture frame has a total perimeter of 2 meters. The height of the frame is .62 times its width. Find the dimensions of the frame.
asked by Anonymous on November 28, 2012 
maths geometry
two poles 15 meter and 30 meter high stand upright in a playground if their feet are 36 meter apart find the distance between their tops.
asked by adis on December 27, 2012 
Pythagoras therem
the two legs of a right angled triangle are equal in length and the square of the length of its hypotenuse is 72cm find the length of each leg.
asked by adis on December 27, 2012 
math
the price of tickets were reduced to 20%. the total number of sales of tickets increased by 60%. find the percentage increase of tickets.
asked by imli on May 12, 2016 
Calculus
Find an equation of the tangent line to the curve f(x) = (sins)^2 + 2tanx at x= pi/4. I worked through it and got y = 5x + 5/2 for my answer, but the answer key says that it is y  5/2 = 5(x  pi/4). Why is the pi/4 in the answer? Thanks for any help!
asked by Lucy on October 19, 2014 
Physics
There is a 85 uC point charge at the origin. What is the electric field at the point x= 45cm , y= 55cm. I am doing (.45+.55)/(.45^2+.55^2)^3/2 Where did I go wrong? I have to find the elctric point for the Ex and Ey.
asked by Sammy on August 12, 2009 
Math
Marlon has 4 cards, lisa has 4 cards and sam has 3 cards. Can you write a multiplication sentence to find how many card they have in all? Explain
asked by Eric on October 16, 2013 
math
The area of a triangle is 80 square meters and the base measures 20 meters. Find the number of meters in the measure of the altitude.
asked by vincent on July 31, 2013 
Math: Geometry and Measurement
Find the area of each circle shown below. Also please tell me how to do it, and no false info please:) The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m.
asked by Renee :) on March 7, 2018 
math
the length of a rectangle is 5cm ...the area of a rectangle is the same as that of a square whose is side measures 4cm..find the width of a rectangle
asked by Ammon on January 9, 2013 
Geometry/Algebra 1/12th grade
Find the value of x. Round u'r answer to the nearest hundredth, if necessary. Area of triangle=108m^2 A=1/2 bh b=(x+6)m h=xm So, 108m^2=1/2 ((x+6)m)(xm) 108m^2=1/2 m^2+x^2+6???? If so then what? Sub m^2 from the left side?? Then what? :/
asked by Help now please on August 30, 2013 
chemistry
The radius of a lead atom is 180 pm. Find the density of metallic lead (Hint: lead is an FCC metal)
asked by Hungry guy on May 20, 2019 
physics
A 2kg block is placed onto a vertically oriented spring whose spring constant k is 1960 N/m. Find the distance that the spring will be compressed.
asked by pakilina on November 3, 2011 
Math
Aaron's father is nine times as old as he is. One year ago, he was two years more than eleven as old as Aaron. Find Aaron's present age.
asked by Anonymous on May 22, 2016 
MathPlease Help!
Hi, I am having trouble understanding the concept of delta and epsilon. Please explain the following problem. Thank you!! Given the function f(x)=2(1/x), find delta such that if 0< Ix2I < delta, then the absolute value of f(x)1 is < 0.1
asked by Eliana on January 13, 2018 
physics
The Young's modulus for steel is 2x1011 and its rigidity modulus is 8x1010 Nm2. Find the Poisson's ratio and its bulk modulus.
asked by pramod on March 27, 2012 
chem
a compound containing only boron, nitrogen and hydrogen was found to be 40.3% B, 52.2%N, and 7.5% H by mass. If 3.301g of this compound is dissolved in 50.00g of benzene, the solution produced freezes at 1.30 degrees celsius. If Kf(freezing point
asked by tomi on November 8, 2008 
chem
Can someone please help me with the following questions? 1:Suppose you were given an ancient wooden box. If you analyze the box for carbon14 activity and find that it is 50% of that of a new piece of wood of the same size, how old is the wood in the box?
asked by Margaret on January 2, 2007 
Torque and shear stress
A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch of thread being 155mm. The shear stress due to the torque on the shafts is equal to the shear stress on the bolts. a) Find the
asked by Henri on March 22, 2009 
COM220
Partial Birth Abortions Partial birth abortions are one of the most divisive issues of today’s civilization. On November 5, 2003 there was a ban that prohibits doctors to perform this type of abortion. This ban has caused many debates and protests both
asked by Stphstvn on June 13, 2009 
math
a number consists of two digit whose sum is 9 .if 9 is subtracted from the number the digits interchange their places.find the number
asked by sherya on July 6, 2013 
math
Find the amount of interest on a loan of $10,500, at 9% interest, for 124 days using the exact interest method.
asked by Brenda on December 13, 2015 
maths "polygon"
in a nonagon 6 of the angles are equal,the other three is 33 more than the 6 angles,find the angles here is my work 6x+3(33+6x)=1260 am getting a decimal answer plz help?
asked by isaac on February 19, 2019 
maths
a shopkeeper has 500kg of potato. he sells 45 kg potato on each day. find how much potato was left after the sale of 8 days
asked by shehzad on April 19, 2015 
Math
1) Use the point on the line and the slope m of the line to find three additional points through which the line passes. (There are many correct answers.) (3, −2), m = 0 a) (3, −2), (3, −4), (3, −6) b) (3, 4), (3, 1), (3, 11) c) (6, −2), (6,
asked by anonymous on March 17, 2019 
Maths
In A Two Digit Number, The Sum Of The Digits Is 14. Twice The Tens Digit Exceeds The Units Digit By One.Find the Numbers.
asked by Jacob on December 9, 2015 
Trig
A vertical tower is on a 12° slope. from a 50 m down the hill, the angle of elevation of the top of the tower is 30°. find the height of the tower
asked by Jeff on April 15, 2014 
Math
Find the domain of definition of function f(x) given by f(x)= log base4{log base5(log base3(18x  x^2  77)}
asked by Shahswat on September 27, 2016 
Geometry
The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?
asked by AnalG on January 20, 2011 
Chakote school solapur
if three resistors are connected in parallel there are 10 ohm 20 ohm and 60 ohm to a battery of 12 volt then find the effective resistance ?
asked by Bhharti on December 11, 2015 
Highline Community College
Suppose that the marginal revenue for a product is given by the following, where x is the number of units and revenue is in dollars. MR = −28 (2x + 2)2 + 28 Find the total revenue.
asked by Preet on March 4, 2012 
Math/Applied
There are 9 numbers (19) placed in a bag, if two numbers are drawn without replacement in succession, find the probability that the sum of the numbers is odd?
asked by Charlottte on May 18, 2016 
Calculus
Find the area of the region bounded by y = x^2, y = 0, x = 1, and x = 2. I tried the integral from 1 to 2 of x^2 and got 3 as the answer. I tried (integral from 0 to 1 of √y + 1) + (integral from 0 to 4 of 2  √y) and got 13/3. What is wrong with the
asked by Anonymous on April 27, 2017 
Algebra 1
Find three consecutive even numbers such that the difference between 3 times the first number and twice the second number is 1/3 the third number. also, my teacher told me to use an equation.
asked by NEED HELP NOW!! on February 22, 2013 
Calculus check
Given f(x)=4+3/x find all values of c in the interval (1,3) that satisfy the mean value theorem. A. 2 B. Sqrt(2) C. Sqrt(3) D. +or sqrt(3) E. MVT doesn't apply I got C
asked by Sarah on March 14, 2015 
algebra
the sum of two adjacent angle is 80°the larger angle is 8°less than 3 tines the smaller find the number of degrees in each angle
asked by tanya on February 5, 2012 
math
how would you find the sale price of an item if it originally cost $16.95, is on sale for 22% off,and the sale tax is 6.5%?Explain each step.
asked by kajheann on April 17, 2012 
MATHS
The+sum+of+two+numbers+is+30+six+less+than+twice+the+smaller+number+is+equal+to+the+number+x+find+the+larger+number Please give me the answer
asked by Jude on July 15, 2016 
math
six lettered tiles are drawn from a bag and placed in a row .if 3 tiles have 3 x's and 3 have o's.find the probability that no 2 adjacent tiles have the same letter?
asked by nelushi on October 3, 2015 
math
The inner circumference of a circular track is 440 m. The track is 14 m wide. Find the diameter of the outer circle of the track.
asked by g on March 31, 2017 
math
The inner circumference of a circular track is 440 m. The track is 14 m wide. Find the diameter of the outer circle of the track.
asked by g on March 31, 2017 
Math
The larger angles of a rhombus are twice the smaller angle of the rhombus. If the shorter diagonal is 20, find the perimeter of the rhombus.
asked by Xinyi panggg on December 13, 2013 
trig
Let be an angle in quadrant II such that sec(theta) 4/3 . Find the exact values of cot (theta) and sin (theta).
asked by Johnny on May 11, 2011 
Precalculus
Find the critical point of the function y=2(x1)^23. Then, determine whether the point represents a maximum, a minimum, or a point of inflection.
asked by Lucy on August 25, 2008 
MATH0098
The perimeter of a rectangle is 58yd , and the area of the rectangle is 54yd . Find the dimensions of the rectangle. Length: Width:
asked by Anonymous on February 27, 2013 
algebra
translate this expression into a mathematical problem the difference between one more than three times a number and a number is 19 find the smaller number
asked by laverne on April 17, 2016 
Business
I forgot my class notes and I can;t find this acronym in my book. Can someone please tell me what the acronym C.L.A.S.S. stands for. I looked it up on an acronym website but has way to many. Thanks
asked by Mike on November 30, 2012 
Precalculus
Find the critical point of the function y=2(x1)^23. Then, determine whether the point represents a maximum, a minimum, or a point of inflection.
asked by Lucy on August 23, 2008 
math
Two angles of the triangle have given measures. Find the measure of the third angle x degrees, 120 degrees minus x degrees
asked by x on April 13, 2011 
math
IF f(x) = {(3,5), (2,4), (1,7)} h(x)= {(3,2), (4,3), (1,6)} determine each of the following: (f+h)(1)= how do I add f and h? (f o h)(3)= how would I multiply f and h? f^1(x)= how would I find the inverse of f? 1/f(x)= how would I do that? f(1) = 7 and
asked by Anonymous on August 3, 2007 
Math
Given a total profit of p(x) = 1.4x0.02x^220 let x represent a number of days and find profit achieved and when that profit is made
asked by Jo on April 22, 2014 
Radical exponents
Use rational exponents to write 4suare root 5 * 2 sqaure root 8 Please help.. I can't find the square root button
asked by Ava on August 15, 2010 
math
Find the exact values of sin 2theta, cos 2 theta and tan 2 theta when cot theta = 4/3
asked by Jim on April 9, 2012 
Geometry
A small circular pool is enclosed in a square. Find the area inside the square, but outside the circle. The Square is 4.3m x 4.3 m
asked by Maghan on May 24, 2010 
geometry
find the remaining sides and angles for the triangle ABC, if b=48 m
asked by Taylor Rambo on June 4, 2010 
phi 105 introductory to philosophy
I read the article who is holy and i need some help in writting a 200 word critique on this article. I find no fault in this article.
asked by lisa smith on April 28, 2010 
Algebra
The larger of two positive integers is five more than twice the smaller integer. The product of the integers is 52. Find the integers. Must have an algebraic solution.
asked by Thomas on October 29, 2007 
math
if the length of the shorter sides of a 45 degree45 degree 90 degree triangle is x, find the lenght of the hypotenuse, in terms of x
asked by mila on May 26, 2013 
self teach calculus
Can somebody verify my answer my answer is correct or not? answer is 8/π(e1). Find the average value of the function on the given interval h(x)=(4e^sin(x)) cos(πx)[0, π/2]
asked by Anonymous on March 20, 2019 
Number Theory
Find a base 7 threedigit number which has its digits reversed when expressed in base 9. (You do not need to indicate the base with a subscript for this answer.)
asked by Mr. Alexander on March 9, 2016 
social studies
What are some resources that countries in the North have. Please LIST the resources. DON'T give me any sites. I tried to find some resources but I couldn't. Please help me. THANKS!:):):):):):):):):):):):):):)
asked by rakhi on May 22, 2010 
physics
A vector has components Ax = 44 m and Ay = 30 m. Find the length of the vector vector A and the angle it makes with the x axis. in meters and in degrees
asked by kj on January 28, 2009 
math
Find the relative extrema, if any, of the function. Use the second derivative test, if applicable. g(x)=4x^2+7x+6 relative maximum (x, y) = (, ) relative minimum (x, y) = (, )
asked by Britney on November 8, 2012 
Science Physics
A pile driver falls a distance of 1.75 m before hitting a pile. Find its velocity as it hits the pile. So its 1.75x9.80=17.15?
asked by Jay on October 27, 2014 
Math  check answer
Given v = 4t  9t3, find the acceleration when t = 1 s. acceleration in m/s2 = My Answer V'=427t2 V"= 54t V"(1)= 54 acceleration in m/s2 = positive 54 Can you please confirm this is correct???? Thanks
asked by Brownie on January 29, 2013 
Calculus
A right circular cone is inscribed in a sphere of radius r. Find the dimensions of the cone that maximize the volume of the cone.
asked by Shayna on October 16, 2011 
maths
determine the coordinate of the poin of intersection of the curves y=x*x and y*y=8x. sketch the two curves and find the area enclosed by the two curves.
asked by patrick on February 7, 2011 
Statistics
The 60th percentile of a normal distribution is 110. The 70th percentile is 120. Find the 90th percentile.
asked by James on March 7, 2013
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