Number of results: 42,941
physics PLEASE HELP
Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature coefficient of resistivity of α1 =0.00480 (C°)-1 and a resistivity of 4.90 x 10-5Ω m. For the second, the temperature coefficient is α2...
January 22, 2013 by adam h.
the portuguese national flag is a rectangle in the center of the flag is a coat of arms and shield on a circle.this circle has a diameter that is half the flags height.if the flags circle has an area of 3.14 square feet,what is the height of the flag?
September 7, 2011 by adam
Basil the bumbling magician has done it again. Instead of pulling a rabbit out of a hat he pulled out rather smelly, ill tempered warthog. For now, he is keeping " Princess" in a cage with a volume of 27 cubic meters. If the sides are in whole meters only and the width is 3 ...
August 11, 2011 by Cortez
a rectangular mosaic is made up of exactly 12 square tiles that have an area of 9 square inches each. If the width of the mosaic is 9 inches, what is the perimeter of the mosaic in inches
September 10, 2013 by jeremy
A rose garden is designed by joining a rectangle and a semicircle, as shown below. The rectangle is 29ft long and 17ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required? (Use the value 3.14 for pi, and do not round your answer...
April 18, 2013 by Samantha
if the same ball rolls down from three different length trackways with a 20degrees elevation, its acceleration on the short-length trackway is 1.08m/s^2;its acceleration on the medium-length trackway is 1.79m/s^2;and its acceleration on the long-length trackway is 1.52m/s^2. ...
November 1, 2006 by Katrina
The areas of the faces of a rectangle box are 48 m2, 96 m2, and 288 m2. A second box is cubical and each of its faces has area 16m2. Find the ratio of the volume of the first box to the volume of the second box.
January 17, 2010 by Michelle
A window has the shape of a square surmounted by an isosceles triangle. The sides of the square are length x. The The perimeter of the window is 90 inches. Thus, the perimeter of the triangle is x+2y. So, 90 inches = 3x+2y. (a) Write an equation for the area of the window in ...
January 23, 2011 by SpencerCH
ABC is a triangle with AC=139 and BC=178. Points D and E are the midpoints of BC and ACrespectively. Given that AD and BE are perpendicular to each other, what is the length of AB?
June 24, 2013 by stranger
ABC is a triangle with AC=139 and BC=178. Points D and E are the midpoints of BC and AC respectively. Given that AD and BE are perpendicular to each other, what is the length of AB?
June 25, 2013 by anonymous
Write a function in Python: Given a list of words, indicate whetehr the list constitutes a "Word Ladder." A Word Ladder is a series of words where each succesding word changes by only one letter. You may assume that all words will be of the same length, but you may not assume ...
May 28, 2010 by Victoria
The perimeter of an isosceles triangle is 16 in. The area of the triangle is 12 sq in. If the base is x in, the height is 4 in and the legs are y in, find the length of the three sides.
January 5, 2012 by Beatrice
calculus *improper integrals*
A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface area and r^2 is the interior surface area. ...
September 16, 2012 by John
Steve can you please show me how to do this problem? What is the area of the shaded region in the given circle in terms of pi and in the simplest form? the picture shown is of a circle with a triangle from 1 oclock to 3 oclock with a 60 deg opening. the side length of the ...
April 2, 2015 by Cassie
A steel rod of length 4 m is welded to the end of an aluminum rod of length 3 m (lengths measured at 23 °C). The combination rod is then heated to 198 °C. What is the length of the combination rod at 198 °C? (The linear expansion coefficients for steel and aluminum are 1.3 10-...
April 4, 2012 by sima
complete the table that shows the length of the chain formed when rings are liked in a staright line 1)number of rings 1 length of chain 16mm 2)number of rings 2 length of chain 30m 3)number of rings 3 length of chain 44m 4)number of rings 6 length of chain ( ) 5)number of ...
May 19, 2008 by marcus
6th grade math
The area of each square is twice the area of the next smaller square drawn in it. if the area of the smallest square is 3 square cms. what is the area of the largest square
September 9, 2009 by sai
Plot and connect the given points in order and determine the area of the resulting figure. (-4,2),(-2,2),(-2,4),(1,4),(1,3),(3,3),(3,-4),(-4,-4) A. 25 B. 30 C. 50 D. 62 E. 100
July 19, 2011 by Deja
A flat screen is located 0.43 m away from a single slit. Light with a wavelength of 530 nm (in vacuum) shines through the slit and produces a diffraction pattern. The width of the central bright fringe on the screen is 0.058 m. What is the width of the slit?
March 31, 2013 by please help
The bed of a truck holds 1920 cubical boxes that are 1 foot on each side. If the height of the truck bed is 10 feet, which is a possible combination for the length & width of the truck bed? Answers: a.) 20feet, 9feet b.) 18feet, 12feet c.) 24feet, 8feet c.) 16feet, 16feet
May 2, 2012 by Taylor Leigh
What connections can you identify between the metric units for length and volume length x length x length = cubic length. That is cm x cm x cm = cubic centimeters or m x m x m = cubic meters. That is length used to measure the sides will provide a volume. That is why volume ...
September 25, 2006 by wow
How does the volume of a rectangular prism change if the width is reduced to 1/10 of its original size, the height is reduced to 1/4 of its original size, and the length is reduced to 2/3 of its original size? A. V=1/120lwh B. V=1/60lwh C. V= 2/3lwh D. V=3/4lwh
February 17, 2014 by anon
We think of the width of the central maxima on our screen as a measure of the uncertainty in the direction of travel of the protons. What happens to this uncertainty in the direction of travel (momentum) as the slit width narrows?
April 15, 2015 by Anonymous
Algebra - Math
A farmer has 100 yards of fencing with which to enclose two adjacent rectangular pens - both bordering a river. The farmer does not need to fence the side with the river. What should the dimensions of the two pens Together (rectangle shape) be in order to yield the largest ...
July 16, 2011 by Adams
The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is ___________ft.
February 20, 2014 by Pam
Could someone please help me? calculate the volume in cu. ft of a section of drainage pipe that measures 8 feet in lenght and 24 inches in diameter (all measurements has to be in the same units and be careful that you distinguish between diameter and area when using this ...
February 22, 2007 by Bridget
The length of an object in feet is equal to 3 times its length in yards. The length of a waterslide is 48 feet. Write and solve a multiplication equation to find the length of the waterslide in yards.
January 30, 2012 by Anna
college - physics
was wondering if someone can help me out. Question: a jet has a length of 59.7 meters. The runway on which the plane lands intersects another runway. The width of the intersection is 25m. the plane decelerates thru the intersection at a rate of 5.70 m/s^2 and clears it with a ...
October 5, 2008 by ksunhsine
Suppose you wish to make a solenoid whose self-inductance is 1.2 mH. The inductor is to have a cross-sectional area of 1.2 10-3 m2 and a length of 0.048 m. How many turns of wire are needed?
October 4, 2007 by Mary
Suppose you wish to make a solenoid whose self-inductance is 3.0 mH. The inductor is to have a cross-sectional area of 2.0*10^-3 m2 and a length of 0.052 m. How many turns of wire are needed?
February 16, 2008 by rick
A trapezoid is formed by placing a right isosceles triangle next to a square as shown in the figure. The total area is 54 ft2. Find the length of the bases and the height.
September 26, 2011 by Ashlee
Suppose you wish to make a solenoid whose self-inductance is 1.6 mH. The inductor is to have a cross-sectional area of 1.3 x 10-3 m2 and a length of 0.065 m. How many turns of wire are needed?
March 10, 2013 by Tonya
A couple wants to install a squaremirror thathas an area of 500 square inches. to the nearest tenth of an inch, what length of wood trim is needed to go around the mirror.
August 28, 2014 by Alysa
The clarinet's lowest note is D3, 147 Hz. What is its effective length, that is, the length of an idealized closed pipe that has this frequency for its first mode? Explain why this is less than the actual length of the instrument?
April 19, 2012 by AAA
A kite has an area of 32. One diagonal is 4 times the other one. The endpoints of one of the diagonals (one of the vertices of the kite) is (3,6). Find other three possibilites for the other three vertices of the kite. Can someone help me with this problem? I can tell you what...
June 13, 2006 by Anonymous
If a TV screen with an aspect ration of 16:9 measures 48cm diagonally, what are the height and width measurments of the screen? The aspect ratio width to diagonal is 16: (sqrt(16^2+ 9^2)) 16:18 so.. 16/18= w/48 and for height 9/18=h/48
October 16, 2006 by Jessie
at a single ticket booth, customers arrive randomly at a rate of x per hour. the average line length is given by F(x)= x^2/400-20x Where 0<= x <20. To keep the wait in line reasonable, it is required that the average line length should not exceed 10 customers. Determine ...
November 25, 2014 by wally
Mr.jones bought 20 yards of fencing to make pen for dog pen will be in rectangle shape, the fencing comes in 1 yard section, wants the MAXIMUM areafor his dog to run, what dimension will give the pen the biggest space for dog to run?? then what r the dimensions for the maximum...
September 25, 2012 by Kim
Abey Numkena is an interior designer. She has been asked to locate an oriental rug for the new corporate office. As a rule, the rug should cover 1/2 of the total floor area with a uniform width surrounding the rug. a) If the dimensions of the room are 12 ft by 16 ft, write an ...
October 1, 2014 by Anonymous
Please show all of your work in the space below. Please present and organized and complete solution. A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m square. Draw two possible gardens. Determine the dimensions of ...
November 22, 2013 by jhon
The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w)=10/w-0.77ln(w)–3.2 You are required to find the width of material that will prevent any heat dissipation. State what equation you will need to solve?
February 14, 2015 by Sam
If the volume of a cube is increasing at 24 in^3/min and the surface area of the cube is increasing at 12 in^2/min, what is the length of each edge of the cube? I know that dV/dt=24 and ds/ds=12. I also know that Volume=s^3 and Surface Area=6*s^2, but what do I do from there?
December 7, 2010 by Anna
calculus help lttle question
find the area of the regin bounded by the graphs of y=-x^2=2x=3 and y=3. i don't need help solving the problem and but i am a little confused. ok the graph is a parabola and i drew a parobla with y= 3. now when find the area, am I finding the area on the top, above y=3 or on ...
January 8, 2007 by david
A rug is to fit in a room so that a border of consistent width is left on all four sides. If the room is 9 feet by 19 feet and the area of the rug is 24 square feet, how wide will the border be?
October 22, 2010 by Ford
How to find the enlarged area- Geometry
Reposting.. The original area is 10 inch^2. If the area is enlarged by 120%, what is the new area? Please help. Thanks. Ten multiplied by 1.20 No, the answer is 14.4 Nope! bobpursley is right, a 120% increase of 10 inches^2 is 12 inches^2 Perhaps you stated the question ...
April 13, 2007 by Jen
If the sides of a square are lengthened by 8cm, the area becomes 289cm^2. Find the length of a side of the original square. I do not know how to do this please help me.
July 3, 2008 by Cynthia
Suppose that the area of a square is forty-one times its perimeter. Find the length of a side of the square. All I can think of is that P=4s and A=s^2 thanks for any help
September 10, 2010 by Mark G
The perimeter of an isosceles triangle is 42 cm . its base is 2/3 times the sum of the equal sides . find the length of each side and the area of the triangle.
December 30, 2010 by saurav kumar
Right triangle ABC has an area of 32^3 cm^2. The measure of <A=30, and the measure of <B=90. What is the length of BC, AB, and AC? Express all answers in simplest radical form.
April 10, 2012 by Cassie
a rectangular prism has a width of 92ft. and a volume of 240ft^3. Find the volume of a similar prism with a width of 23ft. Round to the nearest tenth if necessary. a)3.8ft^3 b)60ft.^3 c)15ft.^3 d)10.4ft.^3 I am totally cinfused by this. Can somebody please help me? I would ...
August 30, 2008 by Shannon
At the half time show during a football game, a marching band is to form a rectangle 50yards by 16yards. The conductor wants to plan out the band members positions using a 14- by 8.5-in. sheet of paper. What scale should she use to fir both dimensions of the rectangle on the ...
March 13, 2012 by A
A)Sam jogs 6 laps around a circular running track which has a radius of 30 meters. How far does she jog in total? B)Tom and Jerry decide to find the perimeter of their garden. Tom measures the length as 5.2meters while Jerry measures the width as 37cm. ehat is the perimeter?
February 24, 2011 by Anonymous