Sunday

December 21, 2014

December 21, 2014

Number of results: 47,260

**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**

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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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**

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*

**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*

**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*

**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*

**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**

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 *

**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 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*

**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*

**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**

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*

**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*

**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**

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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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**

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*

**forces**

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

**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*

**Health**

Body fat is defined as the proportion of fat that is in your body compared to your bone and muscle. True or False My answer is true because to me its the component that refers to the ratio of fat to lean body mass.
*August 18, 2014 by Faye*

**Physics**

A body of mass 10kg moving with velocity 30m/s collide with another body of mass 15kg.If the velocity of both the body are same after collision.Then find their common velocity.
*August 9, 2012 by Aarushi*

**health care 220**

can someone just tell me how to do this I can not get a hold of my teacher. I do not want the answer I just do not understand how to do it. A. Use the matrix below to describe each approach to organizing information about the body. Discuss how each approach can be used. ...
*December 7, 2008 by angela*

**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 . ...
*November 24, 2012 by juanita*

**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*

**physics**

If a hollow metal cylinder of radius r is rolling towards a circular bump of height h. calculate the minimum speed needed to progress over a circular bump.
*March 3, 2013 by darrin *

**Physics**

What is the minimum work needed to push a 1075 kg car 230 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?
*March 21, 2014 by Hope*

**Calculus**

if the work required to stretch a spring 1 ft beyond its natural length is 12 ft-b, how much work is needed to stretch 9 inches beyond its natural length?
*April 30, 2014 by Rachel*

**Elasticity (Physics)**

A tunnel of length L=150m, height H=7.2m, and width w=5.8m (with a flat roof) is to be constructed at a distance d=60m beneath the ground. The tunnel roof is be entirely supported by square steel columns, each with a cross sectional area of 960 cm^2. The mass of 1.0 cm^3 of ...
*September 9, 2009 by David*

**Chemistry**

The recommended dosage of iodine-131 is 4.20 \mu{\rm Ci/kg} of body weight. How many microcuries of iodine-131 are needed for a 84.0 {\rm kg} patient with hyperthyroidism?
*April 27, 2011 by Help!!*

**physical Edu**

The fight-or-flight response prepares the body for physical action regardless of whether action is needed. is it True
*June 18, 2012 by Andy*

**health**

The nine essentialamino acids are A)NOT FOUND IN FOODS B)NOT MADE BY THE BODY C)ALL PRESENT IN INCOMPLETE PROTEIN D)MADE BY THE BODY not made by the body, so they must come from foods.
*January 5, 2007 by gabrielle*

**Chels**

What can you say about the motion of a body if its veloctiy-time graph is a straight line inclined with the time axis? a. the body moves with uniform velocity b.the body moves with uniform acceleration c. the body moves with non uniform acceleration d. the body moves with ...
*April 29, 2008 by Physics*

**Health**

1. A fungi is a single celled organism that can cause a disease -True? 4. Your skin keeps pathogens from getting out of your body. -False? 16. Hormones are chemical substances made and released in one part of the body that causes a change in another part of the body. -False? ...
*November 26, 2011 by mysterychicken*

**PRE-CALC**

A drug is eliminated from the body through urine. Suppose that for an initial dose of 10 milligrams, the amount A (t) in the body t hours later is given by A(t) = 10(0.8) t a) Estimate the amount of the drug in the body 8 hours after the initial dose. b) What percent of the ...
*December 2, 2010 by Ann*

**science**

The recommended dosage of iodine-131 is 4.20 \mu {\rm Ci}/{\rm kg} of body mass. How many microcuries of iodine-131 are needed for a 58.0kg patient with hyperthyroidism?
*November 5, 2012 by Cassie*

**Algebra 2 Answer Check**

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**

A stunt driver wants to make his car jump over 8 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 1.5 m above the cars and the horizontal distance he must clear is 22..(I got ...
*December 6, 2013 by Somoan*

**gen chem**

The recommended dosage of iodine-131 is uCi/kg of body weight. How many microcuries of iodine-131 are needed for a patient with the hyperthyroidism?
*June 10, 2012 by Danny*

**Math- 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 20, 2013 by Jennifer*

**physics**

A trucker sees the image of a car passing her truck in her diverging rear-view mirror, whose focal length is 60.0 cm. If the car is 1.85 high and 6.75 away, what is the location and height of the image. 1/p + 1/q = 1/f 1/675cm + 1/q = 1/(-60cm) q=-55.1 cm M=h'/h M=-q/p M=-(-55...
*March 28, 2008 by Anonymous*

**Physics**

If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the ...
*October 23, 2012 by Laurie*

**Math **

Justin rides his bike in a rectangular route. He knows the total distance is 6,188 yards and the length of the shorter side of the route is 741 yards. What is the length of the longer side ?
*April 5, 2013 by Josh *

**math and geography**

does any body know what websites let you see the 5th grade building spelling skills and daily geography (by evan moor) with answer ? this is using java?
*October 20, 2009 by ms. rizzo*

**math 214**

A group of students on a hiking trip wants to find the distance AB across a pond (see the following figure). One student suggests choosing any point C, connecting it with B, and then finding point D such that <DCB ≅ <ACB and DC≅AC. How and why does this help ...
*February 26, 2010 by alicia*

**PHYSICS**

A 7 m ladder weighing 250 N is being pushed by force F AT bottom What is the minimum force needed to get the ladder to move? The static coefficient of friction for all contact surfaces is 0.4.
*August 10, 2010 by sushanth*

**physics**

What is the minimum work needed to push a 900 kg car 890 m up along a 7.5 degree incline? (a) ignore friction (b) Assume the effective coefficient of friction retarding the car is 0.20.
*November 8, 2010 by amy*

**PHYSICS please**

what is the minimum gauge pressure needed in the water pipe leading to a building if the water is to come out of a faucet on the 12th floor, 41m. above the pipe.
*April 15, 2011 by DMITRIC*

**Science**

A 2400-pound car exerts its maximum force of 750 pounds. What will be its minimum time needed to slow it down from 50 m/s to 10 m/s? Determine how far will the car travel in that time.
*February 2, 2012 by Princess*

**math**

A railing for a deck requires pieces of redwood 4 ft 9 in., 13 ft 9 in., and 4 ft 3 in. long. What is the total length of material that is needed? A)
*August 19, 2007 by sandy*

**math**

a railing for a deck requires pieces of cedar 4 ft 8 in., 11 ft 7 in., and 9 ft 3 in long. what is the total length of material that is needed?
*December 5, 2007 by Stumped*

**physics**

A spring has k = 88 N/m. Use a graph to determine the work needed to stretch it from x = 3.6 cm to x = 5.6 cm, where x is the displacement from its unstretched length.
*November 17, 2009 by frank*

**math**

A railing for a deck requires pieces of redwood 4 ft 9 in, 13 ft 9 in, and 4 ft 3 in long. What is the total length of material that is needed?
*December 11, 2010 by cookie*

**Statistics**

How large a sample of U.S. adults is needed in order to estimate U with a 95% confidence interval of length 1.2 hours?
*June 25, 2012 by Pat*

**physics**

For a simple 15 upward ramp, what length would be needed for a runaway truck traveling 140 ?
*February 14, 2013 by caa*

**Physics**

(1) body is taken to depth of 32km below the surface of the earth. Calculate the percentage decrease in the weight of the body at this depth (The radius of the earth is 6400km) (2)A wire of mass per unit length 5.0gm-1 is stretched between 2 points 30cm apart. The tension in ...
*July 26, 2008 by matrixxavier*

**Psychology**

I know I am not going to do such a thing, but the thought keeps moving through my mindDid I remember to get dressed?" Karen recognizes her thought as unrealistic, but she stops at each restroom to check in the mirror. She checks again when she passes a window in which she can ...
*July 26, 2013 by Matin*

**calculus**

Find a vector that has the same direction as the given vector but has length 6. ‹-2, -2, 4› I know how to find a unit vector of this, but to find a vector in the same direction but length >1 I'm not sure how to determine the scalar multiple that will be needed. I know it ...
*August 23, 2011 by vector length*

**trig**

Given BC = 53 cm, BD = 62 cm, CD = 80 cm, ABC = 53°, and ACB = 66°, find the following. (Round your answers to the nearest whole number.) (a) the length of the chainstay, AC AC = cm (b) BCD BCD = °
*November 16, 2012 by janice*

**Math**

If a rectangle has a perimeter of 12 meters and each side is a whole number of meters, what are the possible dimentions for the length and width? List them and explain your answer.
*March 4, 2014 by Hero*

**Physics(Please help)**

What is the smallest number of whole logs (ñ = 725 kg/m3, radius = 0.0800 m, length = 3.60 m) that can be used to build a raft that will carry four people, each of whom has a mass of 60.0 kg? I do not know how to start this.
*June 21, 2012 by Hannah*

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