Sunday

March 1, 2015

March 1, 2015

Number of results: 48,493

**Algebra**

A motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 minutes at a certain rate; traffic then increased and for the next 6 minutes he averaged 10 miles per hour less than his original speed; then traffic eased up and he traveled the ...
*October 24, 2013 by Jane*

**Physics**

A drop of water on a countertop reflects light from a flower held 2.8 cm directly above it. The flower's diameter is 1.7 cm, and the diameter of the flower's image is 0.17 cm. What is the focal length of the water drop, assuming that it may be treated as a convex spherical ...
*November 17, 2011 by Kristi*

**Math 207**

If the work required to stretch a spring 4 feet beyond its natural length is 17 foot-pounds, how much work is needed to stretch it 35 inches beyond its natural length? Your answer must include the correct units. (You may enter lbf or lb*ft for ft-lb.)
*May 2, 2012 by Anonymous*

**Physic**

A person weighs 872 N in air and has a body fat percentage of 20.7%. a. What is the overall density of this person's body? b. What is the volume of this person's body? c. Find the apparent weight of this person when completely submerged in water.
*April 18, 2010 by Ann*

**algebra1/McDougal Littell**

a page of pictures for a yearbook is 8 1/2 inches by 11 inches. The space between the pictures is 3/16 inch. How high can each picture be to fit seven down the length of the page? since the the length of the page is 11 inches, and there has to be seven pictures down the length...
*November 16, 2006 by derrick*

**Physics**

Body A has twice the mass and three times the specific heat of body B. They are supplied with equal amounts of heat. Body A experiences a temperature change ΔT. What change in temperature is experienced by body B? Question 2 options: A) ΔT B) 3ΔT/2 C) 2ΔT/...
*August 15, 2011 by Skylar*

**Physics - Optics**

A photographic slide is to the left of a lens. The lens projects an image of the slide onto a wall which is a distance of 5.94 m to the right of the slide. The image is larger than the size of the slide by a factor of 82.0. How far is the slide from the lens? Is the image ...
*July 17, 2007 by Tifani*

**Minimum Concentrations - Urgent help!**

What is the minimum concentration? Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left. 8.0 x 10^-2 CaI2, K2SO4 1.5 x 10^-3 AgNO3, RbCl The Ksp values for both are Ksp = 2.4*10-6 for ...
*March 22, 2013 by Amy*

**Physics**

The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0 of its length. What is the tension in the guy wire? Link to picture of problem which is needed to solve the problem...
*April 27, 2013 by John*

**Physics**

The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0% of its length. What is the tension in the guy wire? Link to picture of problem which is needed to solve the problem...
*April 28, 2013 by John*

**please help geometry**

you need to find the length of a broken automitive belt. the belt ran around 2 pulleys whose centers were 11 in apart. one of the pulleys is 4" dia. and the other is 6" dia. what is the totoal length of the belt needed to connect thr pulleys?
*April 25, 2013 by ALICE*

**math**

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
*October 29, 2011 by gaurav*

**math**

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
*October 29, 2011 by gaurav*

**math**

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
*October 29, 2011 by rahul*

**English**

Hello. I will really appreciate some help. 1)Would you use the article in the sentence "The UN called on Egypt to end (the) violence and bloodshed"? 2)Is it correct to say: a)the British newspaper Daily Mirror; or is it b)the British newspaper The Daily Mirror? 3)Which ...
*December 4, 2011 by Ilma*

**Physics**

Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take the distance between ...
*December 16, 2007 by Lindsay*

**chemistry**

How would I find amount of P in a 100 liter solution. The liter of solution contains nitric and sulfurous acid and possibly a dissolved body... the body weighs 70 kg and there are 6.3 ppt of phosphorous in a human body.
*October 27, 2013 by Anonymous*

**Chem**

Based on the number of atoms per unit cell and the mass of the atom, the mass of the unit cell can be calculated. The density of the unit cell and the material as a whole can be determined from the mass and the volume of the unit cell as. D= M/V The usual units of density are ...
*January 16, 2009 by Juliee*

**English**

I have a few doubts regarding the following questions. Can you help me, please? 1)Provide a definition of "poetry" including its most important elements. 2)Briefly refer to the description of the mirror as provided by Sylvia Plath in her poem "Mirror"? What does the mirror ...
*November 14, 2010 by Franco*

**Math**

Does -3/4 belong in the group, integers and rational numbers. in order it goes:Natural #s-1,2,3,4... Whole #s-0,1,2,3,4... Integers-whole #s & opposites(negatives) Rational #s-numbers written in fractions or decimals Please read: (Broken Link Removed) -3/4 is a rational number...
*December 14, 2006 by Katie*

**English**

1. He killed him. 2. He killed himself. (Can we use both sentences. I think they have different meaning.) 3. You should take care of yourself. 4. You shoud take care of you. (Are both OK? Is #4 wrong?) 5. He looked at himself in the mirror. 6. He looked at him in the mirror. (...
*December 7, 2009 by rfvv*

**maths**

1) The 17th hole at the famous st andrews golf course is 420 m in length.How long will it appear on a plan of the course of scale 1:8000? 2) On a map of scale 1:15000,the distance between the buckingham palace and brixton underground station is 31.4cm. what is the actual ...
*February 27, 2011 by sweety*

**physics**

A navy jet with a weight of 231 kN requires an airspeed of 85 m/s for liftoff. The engine develops a maximum force of 107 kN, but that is insufficient for reaching takeoff speed in the 90 m runway available on an aircraft carrier. What minimum force (assumed constant) is ...
*November 26, 2006 by Dee*

**Accounting: Lock Box System**

What minimum reduction in the time to collect and process each check is needed to justify use of the lock box system? If 400 payments per day, 2,000 average payment size, Bank charge $.40 per check and interest rate is .015 per day. The answer depends on the value of time. For...
*October 10, 2006 by Lola*

**math (distance problem)**

The points A, B, C, D, and E are located on a straight line in order. The distance from A to E is 20cm. The distance from A to D is 15cm. The distance from B to E is 10cm. C is halfway between B and D. Find the distance from A to C.: * 2.5 cm 5 cm 10 cm 12.5 cm
*September 22, 2007 by anonymous*

**mechanics of machines**

A body of weight 500N is lying on a rough plane inclined at angle 3.2 with the horizontal. It is supported by an effort p, parallel to the plane. Determine the minimum and maximum value of P, for which the equilibrium can exist if the angle of friction is 0.342
*April 10, 2012 by mustapha*

**Polytechnic soko nigeria**

A body of weight 500N is liying on a rough plane inclined at angle 25 with the horizontal, it ir supported.by an effort P, parallel to the plane.determine the minimum and maximum value of P, for the equilibriun can exist if the angle of friction is 20
*April 12, 2012 by Musty*

**Polytechnic soko nigeria**

A body of weight 500N is liying on a rough plane inclined at angle 25 with the horizontal, it ir supported.by an effort P, parallel to the plane.determine the minimum and maximum value of P, for the equilibriun can exist if the angle of friction is 20
*April 12, 2012 by Musty*

**Physics**

A beam, B1, of mass M1 = 0.6887 kg and length L1=1 m is pivoted about its lowest point at P1. A second beam, B2, of mass M2=0.200 kg and length L2=0.200m is suspended (pivoted) from B1 at a point P2, which is a horizontal distance d=0.550, from P1. To keep the system at ...
*May 2, 2011 by Catherine*

**chem**

According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
*September 5, 2010 by ryan*

**Management**

Why is management necessary? What are the advantages and disadvantages of delegation? Just as the brain coordinates the functions of the body, effective management is needed to coordinate the functions of a business to make it productive. However, since this is not my area of ...
*July 6, 2006 by Laverne*

**General Physics**

A block sliding on a horizontal surface has an initial speed of 0.5 m/s. The block travels a distance of 1 m as it slows to a stop. What distance would the block have traveled if its initial speed had been 1 m/s? 1. 2 m 2. 1 m 3. more information is needed to answer the ...
*July 26, 2013 by Charles*

**college chemistry**

According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
*September 5, 2010 by ryan*

**statistics**

The scores on a test for a very large class is normally distributed with mean 64 points and standard deviation 6 points. The department decides to award A to the highest 5% scores. What is the minimum score to receive an A for the course? Round your answer (down) to nearest ...
*July 11, 2012 by Anonymous*

**Physics**

I still cannot solve this problem: Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally ...
*December 17, 2007 by Lindsay*

**Calc**

A body of an unknown temperature was placed in a room that was held at 30°F. After 10 minutes, the body's temperature was 0°F, and 20 minutes after the body was placed in the room the body's temperature was 15°F. Estimate the body's initial temperature. Thank you!!
*January 6, 2011 by Erica*

**English**

Which of the following sentences is in the passive voice? A. I just don't see the point. B. I want my MTV. C. A whole case of beer gets drunk every Satyrday night. D. Please don't tell me I missed it. I think its D
*April 14, 2011 by robin*

**Statistics**

In recording the self-reported lengths of a particular body part in a sample of male undergraduates, the largest was claimed to be 20 cm—a full 3 standard deviations from the mean length for the sample. The shortest alleged length was only 10 cm, which was equivalent to ...
*November 3, 2012 by susan*

**Math**

Each of the three dimensions of a cube with sides of lenth s centimeters is decreased by a whole numer of centimeters. The new volume is cubic centimeters is given by V(s)=s^3-13s^2+54s-72. a) Find V(10) b) If the new width is s-6 centimeters, then what are the new length and ...
*September 12, 2010 by Nina*

**physics**

a spacecraft has an acceleration of magnitudes 5.0g what distance is needed for it to attach a velocity of 10 km/s?
*August 8, 2010 by jether*

**French - SraJMcGin/Frenchy**

Aimes-vous peinture " Girl before a Mirror - Picasso? Pourquoi ou pourquoi pas? English: [Yes I like the painting "Girl before a Mirror by Picasso because it is really colorful, and the reflection of the girl is something totally different, its strange but cool at the same ...
*April 1, 2011 by Karley*

**physical science **

Which of the following four bodies has the greatest kinetic energy? a. A body of mass 1 kg moving with speed 1000 m/s. b. A body of mass 2 kg moving with speed 50 m/s c. A body of mass 3 kg moving with speed 50 m/s d. A body of mass 50 kg moving with speed 2 m/s e. A body of ...
*December 15, 2011 by Fonda*

**math**

The legs of a right triangle are 13 inches and 9 inches. Find the length of the hypotenus to the nearest whole number.
*December 15, 2009 by jw*

**10th grade**

Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.
*May 27, 2010 by it's me*

**Perimeter**

A rectangle has a perimeter of 12m. If each side is a whole number of meters, what are the possible dimensions for the length and width?
*February 8, 2012 by Jackie*

**physics**

A uniform plank of length 5.6 m and weight 203 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before it just begins to ...
*June 1, 2007 by meredith*

**Physics**

A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I still don't quite understand this one. How do I ...
*December 5, 2007 by Lindsay*

**maths**

a triangle has sides of length 7 cm ,15cm and x cm. If x is an interger find (i) the minimum value of x (ii) the maximum value of x
*November 2, 2013 by Virginia*

**English**

1. I want to see the movie. 2. I want to see the film. 3. I want to see the motion picture. 4. I want to see the animated picture. ------------------- Ae they all the same in meaning? What is the difference among them?
*December 23, 2014 by rfvv*

**algebra**

The drama club is building a backdrop using arches whose shape can be represented by the function f(x)=-x^2+2x+8, where x is the length in feet. The area under each arch is to be covered with fabric. -What is the length of the segment along the floor of each arch? -What is the...
*May 8, 2008 by astrid*

**Math**

Help to solve problem A cube has an edge length of d. Point C is at the center of the top face of the cube. express the length of the path from vertez to vertex B to the center point C in terms of d. Use the idea that the square root of (N X N). Estimate any numerical square ...
*May 12, 2011 by Ale*

**medical terminology**

Seven Organizational Approaches A. Use the matrix below to describe each approach to organizing information about the body. Discuss how each approach can be used. Approach Describe the approach How might the approach be used? Body planes and directions Body cavities Quadrant ...
*September 8, 2008 by nicole*

**science**

Can anyone help me out fill in the blanks. Here are the words that will complete the whole thing: -birth -body -control -development -eggs -endocrine glands -growth -hormones -milk -production -sperm uterus contractions The pituitary gland secretes______ which____ other____ ...
*October 24, 2014 by lyka*

**5th grade math**

The moon is about 240.000 miles from Earth. What is this distance written as a whole number multiplied by the power of ten?
*September 13, 2012 by Jordan*

**MATH**

A guy-wire is attached to a tree to help it grow straight. The length of the wire is 2 feet greater than the distance from the base of the tree to the stake. Find the length of wire. x + 2 x + 1 x how would i set this one up?
*September 30, 2008 by jennifer*

**Precalc-Max and Min word problem w/ calculator**

A cylindrical can (w/lid) needs to be construced to hold 40 cbic inches. Find the dimentions of the can so that the total amout of material needed is a minimum i dont know how to do this!! please help- do you know any sites that reteach this?
*October 15, 2008 by Adam*

**Chemistry**

Please help me with this question from my homework package What is the minimum number of photons with wavelength 645nm needed to prepare 135 grams of glucose? When the thermochemical equation is C6H12O6(s)+ 6O2(g)--> 6CO2(g)+ 6H2O(g) Reaction is -2539.01 Kj/mol
*February 10, 2009 by Shylo*

**math**

the americans with disabilities act requires wheelchair ramps no greater than 1 over 12 or 1/12 .whta is the minimum horizontal length 2-foot-high ramp can have?
*May 20, 2013 by mary*

**physics**

A particular jet aircraft must reach a speed of 43 m/s in order to take-off. If the acceleration of the plane is 1329 m/s2, the minimum length of the runway is Answermeters
*January 29, 2015 by diana*

**Physics**

You are trying to photograph a bird sitting on a tree branch, but a tall hedge is blocking your view. However, as the drawing shows, a plane mirror reflects light from the bird into your camera. For what distance must you set the focus of the camera lens in order to snap a ...
*April 10, 2013 by Tim*

**physics**

A body moves along a straight line from rest with an acceleration of 2m/s². Calculate the time taken by it to cover a distance of 100m.
*July 14, 2012 by Ragheeba*

**Science**

A body moving with an initial velocity of 10m/s has a uniform acceleration of 2m/s.Find distance travelled in the 8th second of its motion?
*September 12, 2012 by Sreehari*

**Science**

a body rolled on a surface with speed of 10m/s comes to rest after covering distance of 50 m find cofficient of friction
*September 12, 2014 by Sudhanshu*

**Calculus**

Find the absolute maximum and absolute minimum of f on the interval (-4, -1]: f(x)=(x^3+8x^2+19x+12)/(x+4) A. Maximum: None; Minimum: (-2, -1) B. Maximum: (-4, 3); Minimum (-1, 0) C. Maximum: (-4, 3); Minimum: (-2, -1) D. Maximum: None; Minimum: (-1, 0) E. none of these
*January 11, 2015 by Anonymous*

**Algebra 2**

At 1:00 a.m., a homicide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit. One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degree Fahrenheit room since its death, what is the time of death ...
*July 10, 2013 by Anonymous*

**Math.....**

At 1:00 a.m., a homicide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit. One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degree Fahrenheit room since its death, what is the time of death ...
*July 16, 2013 by Anonymous*

**physics**

A body at rest is given an initial uniform acceleration of 8m/s2 for 30s after which the acceleration is reduced to 5m/s2 for the next twenty seconds. The body maintains the speed attained for 60s, after which it is brought to rest in 20s. 1. Draw the velocity time graph of ...
*August 28, 2011 by jane*

**Algebra 2**

Can somebody help with these. Simplify (be sure to rationalize all denominators) 11. 3/[SQRT(5) - 2] and this.. Note: I only need help on the b part of the question.. 15. Assume that a surveyor stands at the top of a mountain that is “h” feet tall. If the distance (in feet) ...
*March 12, 2009 by Mike*

**calculus**

Find the length and width of a rectangle that has the given area and a minimum perimeter. Area: 8A square centimeters
*October 26, 2014 by liz*

**Physics**

The top string of a guitar has a fundamental frequency of 300 Hz when it is allowed to vibrate as a whole, along all its 60.0 cm length from the neck to the bridge. A fret is provided for limiting vibration to just the lower two-thirds of the string. The guitarist can play a "...
*April 13, 2011 by ECU*

**Physics**

The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure below. The center of gravity of the leg is one-third of the distance from the pelvis to the bottom of the foot. Two objects, with masses m1 and m2, are hung using pulleys to provide ...
*July 15, 2013 by Jason *

**math**

how many different rectanagles exist which have whole numbers as the length and width,and also have an area of 36sq.cm?
*February 1, 2011 by cindy*

**Physics repost**

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? Can you please clarify this for me. When I first post it my reponse was: # turns= # of...
*October 9, 2007 by Mary*

**physics**

please check these for me: What is the wavelength of microwaves of 3.0*10^9 Hz frequency? a. 0.050m b. 0.060m c. 0.10 m d. 0.20 m C If a light ray strikes a flat mirror at an angle of 30deg from the normal, the ray will be reflected at an angle of a. 30deg from the mirror's ...
*March 12, 2009 by physics*

**statistics**

a simple random sample will be obtained from a normally distributed population. find the minimum sample size needed to be 95% confident that the sample standard deviation (s) is within 10% of sigma. please help!
*April 16, 2011 by lucy*

**statistics**

For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested. a. What is the minimum score needed to be in the bottom 10% of the distribution? b. What scores form the boundaries for the middle 75% of the distribution.
*April 29, 2012 by tammy*

**physics**

a point moving on a straight line traversed half the distance with a velocity v0. the remaining part of the distance was covered with velocity v1 for half the time, and with velocity v2 for the other half of the time. find the mean velocity of the point averaged over the whole...
*July 3, 2011 by pavatharani*

**Science**

What minimum acceleration must it engines produce if the airoplane has become airbome after starting from rest and travelling a distance of 300m on the runway
*February 27, 2011 by Nobuhle*

**Physics**

An engineer needs to determine the distance across a rive whose banks are approx. parallel. Standing on one side of the bank, the engineer can see the other side. The engineer only has a 30 foot measuring tape ( which is shorter than the distance from one bank to the other) ...
*September 29, 2011 by Janie*

**Calculus**

A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 100 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery company's requirements.
*November 1, 2011 by Anonymous*

**calculus**

A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 104 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery company's requirements.
*November 15, 2011 by Anonymous*

**Math **

Abigail Adventuresome took a shortcut along the diagonal of a rectangular field and saved a distance equal to 1/3 the length of the longer side.Find the retio of the length of the shorter side of the rectangle to that of the longer side.
*January 5, 2010 by JEFF BOMB*

**chem**

Commerical hydrochloric acid is 37% by mass HCl and has a solution density of 1.18g/mL. What minimum volume of hydrocloric acid is needed to dissolve 16g Al. The balanced equation is 2Al + 6Hcl --> 2AlCl3 + 3H2
*November 21, 2007 by Anonymous*

**math**

The two figures are similar, solve a proportion to find the length n. Express the result as either a whole number or use decimal digits only if necessary. * * * 15 cm 9 cm * * * * * * * * * * * * * * 12 cm * * n * * * * * * * * * * * * * *
*April 12, 2012 by Cheril*

**math**

The two figures are similar, solve a proportion to find the length n. Express the result as either a whole number or use decimal digits only if necessary. * * * 15 cm 9 cm * * * * * * * * * * * * * * 12 cm * * n * * * * * * * * * * * * * *
*April 12, 2012 by Cheril*

**math**

The two figures are similar, solve a proportion to find the length n. Express the result as either a whole number or use decimal digits only if necessary. * * * * * * 15 cm 12 cm * * n 9 cm * * * * * * * * ** * * * * * * * ** * * * * * * * * *
*April 12, 2012 by Cheril*

**general physics**

What is the smallest number of whole logs (ñ = 725 kg/m3, radius = 0.0556 m, length = 3.80 m) that can be used to build a raft that will carry four people, each of whom has a mass of 73.0 kg?
*July 20, 2013 by please help with these practice problems*

**Math**

Adjacent sides of parellogram are 36cm and 27cm in length. If the perpendicular distance btn. the shorter sides in 12cm,what is the distance btn. The longer sides? Gve me ful solutn
*September 9, 2012 by Simran kaur*

**physics**

A stunt driver wants to make his car jump over eight cars parked side by side below a horizontal ramp. (a) With what minimum speed must he drive off the horizontal ramp? The vertical height of the ramp is 1.5m above the cars, and the horizontal distance he must clear is 20m. (...
*September 14, 2009 by perry*

**algebra**

would someone write out the whole process of the following question, including solving for y so that i can see what i am doing wrong. Thank you Solve by the substitution method. write as an ordered pair. 8x-3y=-94 2x+22=y
*July 23, 2011 by babs*

**calculus **

Find the point on the function y= 1/ x, x>0 that is closest to the point (2,2) and then state the minimum distance.
*March 31, 2010 by Anonymous*

**Geometry**

What is the minimum distance between any point on the circle x^2 + y^2 = 25 and the line y = -\frac{3}{4}x + \frac{75}{4} ?
*March 7, 2013 by John*

**Geometry**

What is the minimum distance between any point on the circle x^2 + y^2 = 25 and the line y = -\frac{3}{4}x + \frac{75}{4} ?
*March 10, 2013 by John*

**Science Important**

1. A toy of height 18.4 cm is balanced in front of a converging lens. An inverted, real image of height 33 cm is noticed on the other side of the lens. What is the magnification of the lens? 2. A convex lens or a magnifying glass is held 2.00 cm above a page to magnify the ...
*January 5, 2010 by Ramandeep*

**Math: Pre-calculus**

A rancher wants to build a rectangular pen with an area of 180 . Let W be the width of the pen and L be the length of the pen. a) Find an equation for the perimeter P in terms of W and L . b) Use the given area to write an equation that relates W and L . c) Find the pen ...
*October 6, 2013 by Sarah*

**forces**

what is the measure of the amount of force needed to move an object a certain distance?
*February 24, 2008 by cn*

**Physics**

An airplane can reach a takeoff speed of 45 m/s (from rest) in 7.0 seconds. What is the minimum runway length required for a safe takeoff?
*September 13, 2010 by Kyle*

**Algebra 2 **

Given the area of the figure, find its perimeter to the nearest tenth. 1. A = 90 ft^2; number of squares: 6. 2. A baseball diamond is a square with an area of 8100 square feet. The length of the diagonal of any square is equal to √2 times it's side length. Finds fhe ...
*September 2, 2014 by Victoria*

**Physics**

What is the minimum work needed to push a 1050 kg car 460 m up along a 17.5° incline? (a) Ignore friction (b) Assume the effective coefficient of friction retarding the car is 0.30
*October 15, 2009 by Jen *

**physics help!!!**

What is the minimum work needed to push a 900 kg car 460 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?
*November 17, 2009 by greg*

Pages: <<Prev | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | **11** | 12 | 13 | 14 | 15 | 16 | 17 | Next>>