Wednesday

December 7, 2016
Number of results: 16,479

**physics**

The charge per unit length on a long, straight filament is -87.0 µC/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) ...

*September 8, 2013 by preya*

**physics**

The charge per unit length on a long, straight filament is -87.0 µC/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b) ...

*September 13, 2013 by priya*

**trig**

A slide is attached to the side of a tree house. The height of the tree house is 6 less than double the distance from the baswe of the tree to the base of the slide. The length of the slide is 3 more than the height of the tree house. Find the length of the slide.

*May 5, 2013 by Kendra*

**Pre Calculus**

1. A rectangular box has a square base, four sides, but no top. It has a volume of 20 cubic feet. Let A be the surface area of the box, and L the length of one side of the base. (a) The volume is measured in cubic feet. What units are convenient to use for the area A and the ...

*September 11, 2012 by Mario Trujillo*

**Math help plz check my answers!**

Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15 cm. 472 cm2 451 cm2*** 781 cm2 330 cm2 Find the volume of a rectangular prism with the following dimensions: Length = 5 mm Base = 7 mm Height = 3 mm 142 mm3 *** 105 mm3 126 mm3 130 mm3

*March 15, 2014 by anonymous*

**Maths Ratio and Proportion**

Q- If 5 men or 7 women can earn Rs. 875 per day, how much 10 men and 5 women earn per day? Q- A photograph of bacteria enlarged 30000 times attains a length of 3 cm. Find the actual length of bacteria. Q- Rashmi types 510 words in half an hour. How many words would she type in...

*November 24, 2016 by PK*

**physics**

A flywheel with an axle 1.0cm in diameter is mounted in frictionless bearings and set in motion by applying a steady tension of 2N to a thin thread wound tightly round the axle. The moment of inertia of the system about its axis of rotation is 5.0 x 10^-4 kgm^-2. Calculate (a...

*March 26, 2010 by Edwin*

**Math**

A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. The length of the deck is to be expanded by 10 feet, and the width by 6 feet. If the area of the new rectangular deck is 128 ft^2 larger than the area of the original deck...

*July 17, 2015 by Ally*

**runways and inverses!**

You have 700 sq ft of plywood to make the stage floor. Use A^-1(x) to find the dimensions of both the runway and the main part of the stage. main stage is a rectangle and runway is a square. length of the main stage is 3x o f the runway, the width of the main stage is 2x the ...

*November 27, 2016 by Laura *

**Genes**

Which one of the following statements describes the relationship between genes, chromosomes and DNA a) genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA b) genes are composed of chromosome and DNA C) chromosomes the basic unit if ...

*August 22, 2010 by Rena*

**Algebra**

1. Create the indicated algebraic expression. Use descriptive variables. The length of a rectangular lawn is 6 ft more than three times the width of the lawn. Express the length of the lawn in terms of the width. A. 3+w+6 B. 3(w+6) C. 6w+3 D. 3w+6 For 1 I thought it was B? 2. ...

*January 16, 2013 by Krissy *

**math quadratic functions **

Alice cuts a ribbon of length 40cm into two pieces to form two squares as shown in th figure (there was no figure, but from my assumption the two squares are probably different ). Let xcm be the length of a side of one of the two squares a)express the total area of the two ...

*August 8, 2016 by Rose*

**Chemistry**

A thirteen-year-old girl, who is underdeveloped and thin, has a blood disorder. She frequently experiences chest and abdominal pain, fever, and coughing, and has trouble breathing. Her teachers often spend additional time with her, explaining concepts that the rest of the ...

*March 30, 2010 by Marlene*

**college**

A thirteen-year-old girl, who is underdeveloped and thin, has a blood disorder. She frequently experiences chest and abdominal pain, fever, and coughing, and has trouble breathing. Her teachers often spend additional time with her, explaining concepts that the rest of the ...

*August 25, 2010 by Anonymous*

**physics**

What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. The object has no net charge. 2. Cannot be determined. 3. The object does not have an appreciable negative charge. 4. The object does not have an appreciable ...

*February 20, 2010 by Anonymous*

**Physics**

A thin massless horizontal pipe rotates about a vertical axis with angular speed ω as shown in the figure. A small bug, located at a distance r from the axis, starts crawling inside the pipe at constant speed v (relative to the pipe). Because of the bug, the motor must ...

*June 18, 2013 by Jon*

**physics**

A telescope that has a 100 cm focal length objective and a 3.00 cm focal length eyepiece. Find the distance between the objective and eyepiece lenses in the telescope needed to produce a final image very far from the observer, where vision is most relaxed. Note that a ...

*October 31, 2014 by Ashton*

**physics**

we launched a solid of mass m on an inclined slide. The natural length of the spring is Lo. Before launching, the spring is compressed to a length L. After launching the center of mass of the solid reaches the point A of altitude Z with velocity v. Neglect friction. a) ...

*September 21, 2016 by vicky*

**math**

A designer enlarged both the length and the width of a rectangular carpet by 50 percent. The new carpet was too large so the designer was asked to reduce its length and its width by 20 percent. By what percent was the area of the final carpet design greater than the area of ...

*May 20, 2016 by PLEASE HELP :)*

**Physics**

Suppose you pluck a string on a guitar and it produces the note A at a frequency of 440 Hz. Now, you press your finger down on the string against one of the frets, making this point the new end of the string. The newly shortened string has 4/5 the length of the full string. ...

*March 17, 2014 by Erin*

**psychology**

Which one of the following statements describes the relationship between genes, chromosomes, and DNA? a. Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA.b. Genes are composed of chromosomes and DNA. c. Chromosomes, the basic unit ...

*September 30, 2011 by bj*

**Physics**

I need help with part b... I found in part a that delta L is .29568m and I think I might be doing something wrong with the units because I can't get the right answer. A 156 g hockey puck is attached to a rubber band and rotated with an angular speed of 12.8 rad/s on ...

*December 5, 2010 by Anonymous*

**HEAT TRANSFER**

The door of a domestic refrigerates has an area of 1.7 m2 & it basically consists of a thin metal sheet with a 25 mm thick layer of insulation on the inside. The thermal conductivity of this insulation is 0.25 W / m-deg & heat transfer on each side of the door is 10 W / m2-deg...

*August 1, 2012 by SIDDIQUE*

**Physics**

small cube of copper (density = 8930 kg/m3) is used to support a large cube of marble (density = 2560 kg/m3). The copper cube has sides of length 2.00 cm and is carefully placed on a flat, level table under the center of the cube of marble that has sides of length 30.0 cm. ...

*July 1, 2012 by AL*

**math**

area of trapezium is 267square mt.parallel sides are 6m and 30m non parallel sides is 2m less then other find the length of non parallel sides.find the length of non parallel side

*April 9, 2016 by ravi*

**Math (Geometry)**

The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest possible length for one of the sides of ...

*August 7, 2012 by ANONYMOUS*

**Math**

If the scale factor from a small figure to a large figure is given as a percent, how can you find the side lengths of the large figure from the side lengths of the small figure? PLEASE HELP ME!!! PLEASE HELP!!!!! THIS IS SOOOOO CONFUSING AND MY TEACHER NEVER REALLY EXPLAINED ...

*January 4, 2007 by AJ*

**math133**

) Solve algebraically and check your potential solutions: sqrtx+2+0 Answer: Show your work here: 3) The volume of a cube is given by V = s3, where s is the length of a side. Find the length of a side of a cube if the volume is 800 cm3. Round the answer to three decimal places...

*May 30, 2010 by michelle*

**algebra**

The Length of time (T) in seconds it takes the pendulum of a clock to swint through one complete cycle is given by the formula T=2pie square root of 7 divided by 32 where L is the length in feet, of the pendulum, and pie is approximately 22 divided by 7. How long must the ...

*April 16, 2011 by Carolyn*

**Math**

The length of time (T) in seconds it takes the pendulum of a clock to swing through one complete cycle is givenby the formula T=2pi square root of L divided by 32 where L is the length in feet, of the pendulum, and pi is approximately 22 divided by 7. How long must the ...

*April 16, 2011 by Carolyn*

**Math**

Given info: arc length = 65 m formula for arc length: s=rø s = 2pi r radius of circle: 2300 m so to find the angle would I put in 2pi(2300)= rounded to 14451 Then would I multiply: 65(360/14451) if that is right, why would I divide by 360 and multiply by 65? Could someone ...

*May 24, 2011 by Amy~ *

**physics(extension)**

A spiral spring of nature 20cm,has a scale pan hanging freely in its lower end. When an object of mass 40g is placed in the pan,its length becomes 21.8cm.when another object of mass 60g is placed in the pan,the length becomes 22.05cm. Calculate the mass of the scale pan

*February 28, 2014 by ogboyeb*

**geometry**

A triangle is made of wood sticks of lengths 8, 15 and 17 inches joined end-to-end. Pieces of the same integral length are cut from each of the sticks so that the three remaining pieces can no longer form a triangle. How many inches are in the length of the smallest piece that...

*January 28, 2016 by M*

**Precalculus**

I usually know how to do these types of problems, but the second variable just threw me off balance.. 47. A rancher has 200 feet of fencing to enclose two adjacent rectangular corrals. What dimensions will produce a maximum enclosed area? (the diagram is of two adjacent ...

*September 14, 2009 by Emily*

**calculus**

Previously asked: the length of a rectangular prism is increasing at a rate of 8 cm/s, its width is increasing at a rate of 3 cm/s, and its height is increasing at a rate of 5 cm/s. when the length is 20 cm, width is 10 cm, and height is 15 cm, how fast is the volume of the ...

*December 7, 2014 by Dani*

**Maths **

Metal components for a machine have lengths which are normally distributed with mean 8 cm and standard deviation 4 cm. A) the longest 10% of components require filling down. What is the smallest length of component which require filing down? B) the shortest 15% of components ...

*March 3, 2016 by Anonymous*

**physics**

Problem A5: In the figure above, the two blocks are on frictionless inclines and are in static equilibrium. The block on the left has a mass of 48 Kg, and the block on the right has a mass of n3 Kg. If the left incline has a length of n1 meters, and the right incline a length ...

*January 10, 2012 by frank*

**Maths**

AB is a chord with centre O and radius 4 cm. AB is of length 4 cm and divides the circle into two segments. Find d area of minor segment. A chord PQ of length 12cm suntends an angle of 120 degree at the centre of a circle. Find the area of minor segment cut off by the chord PQ

*December 26, 2012 by Shruti katiyar*

**computer programs**

I have a problem just getting started on writing pseudocode or a program for the following problem: A worm is moving toward an apple. each time it moves, the worm cuts the distance between itself and th eapple by its own body length until the worm is close enough to enter the ...

*September 28, 2007 by Leo*

**Physics**

A spring with k = 54 N/cm is initially stretched 1 cm from its equilibrium length. (a) How much more energy is needed to further stretch the spring to 2 cm beyond its equilibrium length? (b) From this new position, how much energy is needed to compress the spring to 2 cm ...

*June 2, 2012 by Kelly*

**(:**

help with Quadratic Equations and Functions: 5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The triangle has an area ...

*May 20, 2012 by neveah gomez*

**Algebra**

In 1915, the tallest flagpole in the world was in San Francisco. a. When the angle of elevation of the sun was 55 degrees, the length of the shadow cast by this flagpole was 210 ft. Find the height of the flagpole to the nearest foot. b. What was the length of the shadow when ...

*December 19, 2012 by Lavanda*

**Grammar-agreement errors**

Match the correct type of agreement error to the sentence. a. Verb tense agreement error b. Subject/verb agreement error c. Pronoun agreement error d. Modifier placement error e. Parallel structure error 1. He complains of abdominal, neck, and chest pain as well as the need ...

*May 13, 2011 by Leslie*

**Statistics**

I am a big shot research scientist at Washington University where I am using 2ebrafish to study neuronal migration. My graduate students measured 40 fish and found that the mean length of the fish sampled was 3.7 cm with a standard deviation of 0.5 cm. Construct a 95% ...

*May 4, 2014 by Linda*

**physics**

During a transatlantic flight, you drink a bottle of water and tightly close its lid again. Back on the ground during taxiing to the terminal, you notice that the thin plastic bottle is crushed, and you eyeball it to be only about 70 percent of its original volume (the photo ...

*November 10, 2010 by Maree*

**physics**

A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m^3. The mass of the wire is small enough that its effect on the tension in the wire can be neglected. The upper end of the wire is held ...

*April 27, 2012 by anonymous*

**Physics**

A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m3. The mass of the wire is small enough that its effect on the tension in the wire can be neglected. The upper end of the wire is held fixed...

*August 13, 2015 by Hazel*

**Math**

The dimensions of a gift box are consecutive positive integers such that the height is the least integer and the length is the greatest integer. If the height is increased by 1 cm, the width is increased by 2 cm, and the length is increased by 3 cm, then a larger box is ...

*June 7, 2009 by Christine*

**honors algebra**

the volume V of a rectangular prism is given by V=lwh, where l is the length of the prism, w is it's width, and h is its height. The length of a certain rectangular prism is three times its width, and its height is 2 feet less than its width. write a simplified expression that...

*November 13, 2012 by amy*

**physics**

A soft synthetic rubber ball of radius 9 cm is submerged to 7.5 m beneath the surface of a lake. a) If the bulk modulus of the rubber compound is Brubber = 9 x106Pa , what is the diameter of the ball at that depth? (b) A similar ball of equal radius, but made of thin rubber ...

*November 7, 2011 by mc*

**algebra,help**

I need help with these problems can someone show me how to solve them step by step.If anyone has time i appreciate it. Problem #1 Geometry. The length of a rectangle is 1 cm longer than its width. If the diagonal of the rectangle is 4 cm, what are the dimensions (the length ...

*March 25, 2007 by jas20*

**Math**

A piece of metal is bent into a rectangle and has a length which is 5 times as long as its width. If the perimeter of the piece of metal is 13 feet 6 inches, find the length and the width of the piece of sheet metal. You must use a variable , write an equation and solve the ...

*May 16, 2008 by Jon*

**Trig**

angle b=25 degrees, angle c=90 AB= 25 a. Find the length of side b to two decimal places. b. Find the length of side a to two decimal places in three different ways.

*February 1, 2012 by BreAnne*

**physics**

monochromatic light of wavelength λ=800nm illuminates normally a thin liquid film with nf =4/3 and t=500nm lying on a glass of refractive index n=2.5 The liquids refractive index can be continuously increased up to some limiting value by applying a variable voltage across...

*June 14, 2011 by asdfgh*

**Engineering**

A tapered thin-wall circular shaft has constant wall thickness, t, length L, and diameters linearly varying between dA at the support A(x=0) and dB at its free end B(x=L). The shaft is homogeneous with shear modulus G HW6_1A : 20.0 POINTS Obtain a symbolic expression for the ...

*June 5, 2013 by Sat*

**physics**

In Fig, a runaway truck with failed brakes is moving downgrade at 160 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of è = 11°. The truck's mass is 1.5 x 104 kg. (a) What minimum length L must the ramp have if the ...

*March 21, 2009 by sweety*

**physics**

A spring with an unstrained length of 0.074 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.1 X 10^3 kg and a net charge of +6...

*January 24, 2013 by frustrated*

**Physics**

A spring with an unstrained length of 0.066 m and a spring constant of 2.3 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.3...

*January 28, 2013 by kjipper*

**Physics **

A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.0...

*January 28, 2015 by Bob*

**Math**

The position of a car piston within the cylinder is described by the equation: y = S sin(360 r t - 90 Where S is the stroke length of the cylinder, r is the rpm of the crank shaft, and t is the time in minutes. If the stroke length is 2 inches and the crank shaft is running at...

*March 30, 2012 by jof*

**Math**

Natalia constructed a right triangle with two side lengths measuring 3 and 5 units. She constructed a second right triangle similar to the first one, with the two corresponding sides measuring 5.1 and x units in length, respectively. What is the missing length, x, of the ...

*December 15, 2014 by Raylin*

**physics**

A 4.0-m-long steel wire has a cross-sectional area of 0.050cm2. Its proportional limit has a value of 0.0016 times its Young's modulus. Its breaking stress has a value of 0.0065 times its Young's modulus. The wire is fastened at its upper end and hangs vertically. A. How great...

*April 8, 2014 by tally*

**solid mensuration? help.**

Window glass formerly was made by gathering a lump of molten glass on the end of a hollow rod blowing it into the form of a large hollow cylinder about 6 ft. long and 1 1/2 ft. in diameter. This was cut longitudinally and then placed in an oven and heated until it softened, ...

*May 12, 2012 by sara*

**Chemistry - thanks**

In a thin layer chromatography (TLC)experiment,the TLC plate was pre-developed in the development chamber containing the mobile phase (to remove any contaminants before use),then air dried. On the same day,the TLC plate was then spotted with the sample & standard and placed in...

*January 31, 2012 by Anne*

**English**

“Her round face looked darker, and the gentleness of her eyes, the thin, arching eyebrows, seemed weary. I brushed the few strands of gray, brittle hair from her face; she managed to smile at me… Yet when she spoke, and her voice hesitated, cracked, the somber shadows of ...

*May 7, 2016 by quick help needed*

**Physics Please help**

A thin, horizontal 20cm×20cm copper plate is charged with 1.7×10^10 electrons. Consider the electrons are uniformly distributed on the surface. A. What is the strength of the electric field 0.1 mm above the center of the top surface of the plate? E=____ N/C B. What is the ...

*May 21, 2014 by Josh *

**Physics**

If a note was "fretted", by reducing the length of the string to 0.25 m, then the lowest frequency note this string could play is? in Hertz I am not certain of the term fretted. The lowest frequency will be the longest wavelength, so that normally means the length of the ...

*November 11, 2006 by Allie*

**math**

At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet tall? b) A tree cast a ...

*January 26, 2012 by savannah*

**list of rf values**

can you give a comprehensive list of rf values. rf: Radio Frequency? I am uncertain what the context of rf is. rf probably is related to chromatography. They are the retention factors for thin layer chromatography; i.e., TLC. I looked on www.google.com an this is what I found...

*December 7, 2006 by damola*

**Math**

Help if you can! Thanks! Appreciate it! The length of one side of a square is approximately 181 inches. Which could be the length of one side of the square? A. 13.5 inches B. 19 inches C. 90.5 inches D. 109 inches

*April 12, 2013 by MidsummerNight'sDream*

**physics**

A skier is gliding along at 1.13 m/s on horizontal, frictionless snow. He suddenly starts down a 13.1° incline. His speed at the bottom is 18.8 m/s. What is the length of the incline? ------------------------------------ Use his change in kinetic energy to get his loss of ...

*October 8, 2008 by Vishnu*

**math**

Bernie put in a garden in her back yard. The garden has a perimeter of 272 feet. She wants to know the total surface area of the garden and all she knows is the perimeter and that the width is 20% or (1/5) of the length. (Remember 20% and the fraction 1/5 is the same decimal ...

*December 9, 2012 by jessica*

**sewing2**

please help me i need help on these qestions ive tried doing them even asking others for help but no one seems to understand them.... Ms. Troy would like you to make a copy of an outfit that she owns and really likes—a sleeveless dress with a short-sleeve jacket. She has ...

*April 20, 2010 by katherine*

**physics**

A car sits in an entrance ramp to a freeway, waiting for a break in the traffic. The driver sees a small gap between a van and an 18-wheel truck and accelerates with constant acceleration along the ramp and onto the freeway. The car starts from rest, moves in a straight line, ...

*September 29, 2013 by Emma*

**college algebra**

An open box is made from a square piece of cardboard 20 inches on a side by cutting identical squares from the corners and turning up the sides.(a) Express the volume of the box, V , as a function of the length of the side of the square cut from each corner, x. (b) Find and ...

*September 27, 2012 by danny*

**geometry**

A segment that is a units long makes a C-degree angle with a segment that is b units long. In terms of a, b, and C, find the third side of the triangle defined by this SAS description. You have done numerical versions of this question. Start by finding the length of the ...

*April 11, 2010 by sally*

**Maths**

I'm really struggling with word problems right now. Got through 20 just three left. Can someone please give me some pointers or the first few steps? 1. A sum of money is divided between A, B and C in the ratio 1 : 2 : 3. However, before the money is divided C dies and it is ...

*April 19, 2010 by Sindy*

**math (rate)**

I need help! Ok here's the problem. Melissa lights 2 candles that are the exact same height at the exact same time. The blue candle takes 6 hours to burn completely. The purple candle takes 9 hours to burn completely. After how many hours will the slower burning candle be ...

*October 25, 2006 by Kasie*

**organic chemistry laboratory **

hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you. 1. Why is it important to have clean test tubes before running a test? Before which tests should acetone not be used to clean the test tubes? Due to ...

*November 2, 2014 by Niah*

**organic chemistry laboratory **

hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you. 1. Why is it important to have clean test tubes before running a test? Before which tests should acetone not be used to clean the test tubes? Due to ...

*November 4, 2014 by Niah*

**Chemistry**

80.0 mL of water is initially at room temperature (22degrees C). A chilled steel rod at 2 degrees C is placed in the water. If the final temperature of the system is 21.2 degrees C, what is the mass of the steel bar? Specific heat of water = 4.18J/g(degreesC) Specific heat of ...

*October 22, 2010 by Ellen*

**physics**

how can i calculate the slope of the best-fit line in a length v.s. resistance(x=length;y=resistance) graph where the plotted points are: (5.1,1.6)(11.0,3.8)(16.0,4.5)(18.0,5.9)(23.0,7.5)? Personally, I would graph the points, and draw a best fit line, then measure the slope ...

*May 20, 2007 by koeit*

**Science**

Which solution will best allow the movers to achieve their goal? A) Change the width of the ramp from 4 meters to 3 meters. B) Change the length of the ramp from 4 meters to 5 meters. C) Change the height of the ramp from 3 meters to 4 meters. D) Change the length of the ramp...

*March 3, 2016 by Marc*

**math**

give me an answer . Chris has a 10 foot long strip of red ribbon and a 15 foot long strip of blue ribbon. draw a diagram to show the relationship of the length of the red ribbon to the length of the blue ribbon

*September 5, 2016 by Anonymous*

**Math**

Semester A Unit 4 Lesson 5: Cool Crafts Portfolio Template Choose a room you would like to decorate: My Bed room Measure the length of one wall in inches: 72 2. Choose a size of paper to use. *I recommend just using a standard 8.5 inch by 11 inch piece of paper. Then fold it ...

*November 3, 2015 by Mathbeep*

**Physics #43**

A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...

*January 25, 2013 by Elizabeth*

**Physics**

A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...

*January 28, 2013 by Jasmine*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of ...

*October 4, 2010 by Max*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of ...

*October 4, 2010 by Tommy*

**physics6**

In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.2 multiplied by 10-17 N during the first 2.2 cm of the tube's length; then they move at essentially constant velocity another 43 cm before hitting the screen. (a) Find the ...

*February 16, 2012 by Anonymous*

**physics14**

In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.2 multiplied by 10-17 N during the first 2.2 cm of the tube's length; then they move at essentially constant velocity another 43 cm before hitting the screen. (a) Find the ...

*February 16, 2012 by jm*

**Math**

Hello there! Could You please help me with this Geometry word problem? Here's the problem: Helen painted a picture that was 10 inches longer than it was wide. When she framed the picture, the outside dimensions (that is, the length and the width) were each two inches longer. ...

*March 6, 2013 by Beth*

**Math**

Hello there! Could You please help me with this Geometry word problem? Here's the problem: Helen painted a picture that was 10 inches longer than it was wide. When she framed the picture, the outside dimensions (that is, the length and the width) were each two inches longer. ...

*March 6, 2013 by Beth*

**Math**

A rectangular park has an area of 2_3 square mile. The length of the park is 22_3 the width of the park. What is the width of the park? this is the example of how they want them solving it The width of the room is 5/6 the length of the room. What are the dimensions of Kamal’...

*March 17, 2015 by Mel*

**Geometry**

Joey has a toy car that is a 1:64 scale model of an actual car. (In other words, the length of the actual car is 64 times as long as the length of the toy car.) Joey's toy car can go 5 feet per second. What is the equivalent speed in miles per hour for the actual car?

*October 21, 2012 by Elizabeth Barnes*

**science **

The total energy of motion in the molecules of a substance is called? ?is the average amount of energy of motion in the molecules of a substance. A ? Is a thin glass tube with a bulb on one end that contains a liquid usually mercury or a colored alcohol. The energy transferred...

*October 8, 2014 by emma*

**chemistry**

15. On October 21, 1982, the Bureau if the Mint changed the composition of pennies. Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2 Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of the new penny was 97.6% Zn and 2.4% Cu by ...

*September 12, 2010 by kelly*

**Physics**

Can someone provide me some input on the question below. Please respond. A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. The string rotates at an angular speed of ...

*March 14, 2007 by Jim*

**physics**

An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 75.0 cm long and has a mass of 5.28 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? Responses Physics - bobpursley, Saturday...

*October 13, 2008 by Samuel*

**Math**

A glass box shaped like a rectangular prism has width of 7 in., length 9 in., and height 12 in. . It is being shipped in a bigger box with width 10 inches, length 10 inches, and height 15 inches. The space between the box and the shipping box will be filled with Styrofoam ...

*March 18, 2016 by A girl with problems.*