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October 20, 2014

Search: minimum length of the mirror needed to see the whole body at any distance

Number of results: 45,940

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
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
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
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
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

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

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

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

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 ( = 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

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

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

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

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

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 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
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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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- 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

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

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

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
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

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

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 ( = 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

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

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

Math
Thomas puts fence posts from one end of a field to the other, equal distance apart. There are 287 posts. Width of each post is 10 cm. Distance between two posts is 30 meters. Find Length of fence.
February 11, 2014 by Anonymous

programming
Application: Pendulum Clocks Pendulums used in clocks, such as grandfather clocks, keep fairly accurate time for the following reason: When the length of a pendulum is large compared with the maximum arc of its swing, the time to complete one swing is independent of both the ...
October 4, 2012 by fatih

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

Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATMs is increasing faster than the rate of bank tellers. Were sorry all our operators are busy. Your call is...
February 22, 2011 by Ann

Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATMs is increasing faster than the rate of bank tellers. Were sorry all our operators are busy. Your call is...
February 22, 2011 by Ann

Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATMs is increasing faster than the rate of bank tellers. Were sorry all our operators are busy. Your call is...
February 22, 2011 by Ann

physics
A charge of -2q is placed a distance r from the origin and a charge of +2q is placed a distance 2r from the origin. What is the amount of work needed to move a charge of q to the origin from infinity? I don't get the question. And please explain to me how can I do it.
March 23, 2008 by Shelly

factoring
can this equation be factored further? y= x^4+2x^3+4x^2+8x+16 Not in the real number system. If you plot the function, you will see the minimum is at x=-1.1 (approx) and y is positive. At no x does the function equal zero, so there are no real roots, which means, no factors. ...
July 26, 2006 by kristie

math
I am confused on how to solve this problem, can you help me? It says the distance around the outside of Cedar park is 0.8mile. Joan ran 0.25 of the distance during her lunch break. How far did she run? A. 0.2mile B. 0.25 mile C.1.05 mile D. 2 miles I did 0.80-0.25=0.55 so I ...
September 26, 2014 by E6

math
The pyramid of Giza in Egypt is built of stone and was completed in 2560 BC. The length of each side of the square base is 230 meters and the vertical height is 146 meters. 1. What volume of stone is needed to form a solid pyramid with these dimensions? The surface of the ...
June 26, 2011 by colton

Physics
A massless spring with spring constant 17.1 N/m hangs vertically. A body of mass 0.210 kg is attached to its free end and then released. Assume that the spring was unstretched before the body was released. How far below the initial position does the body descend?
April 25, 2013 by Anonymous

statistics
We guess, based on historical data, that 30% of graduating high-school seniors in a large city will have completed a first-year calculus course. What's the minimum sample size needed to construct a 95% confidence interval for a proportion with a margin of error of 2.5%?
April 22, 2014 by nicole

A&P 1
research the effects of a stimulus or major physical change on body system structure and function, write a researched analysis of the physiological and structural effects of Regular physical fitness and exercise on body system integrity. Include a clear analysis of how the ...
January 29, 2009 by PJ

Calculus
Shadow Length A man 6 feet tall walks at a rate of 3 ft per second away from a light that is 16 ft above the ground (see figure). When he is 11 ft from the base of the light find the following. (a) The rate the tip of the shadow is moving. (b) The rate the length of his shadow...
August 31, 2011 by Andrea

Physics
a body (A) is moving with a speed of 250m/s in the positive x-direction, collides with body (B) initially at rest and having the same mass as (A). after collision the speed of body (A) is 100m/s making 30 degree with the horizontal. the speed and direction of body (B) after ...
August 25, 2012 by Help, Thankyou

Physics
The Achilles tendon, which connects the calf muscles to the heel, is the thickest and strongest tendon in the body. In extreme activities, such as sprinting, it can be subjected to forces as high as 13 times a persons weight. According to one set of experiments, the average ...
November 11, 2013 by Kenzie

Math
Checking my son's homework and want to see if he figured this out correctly .. i am too old to be revisiting this math ... Here is the question ... The perimeter of a rectangle patio is six times the length of the shorter side. If the shorter side is 8 feet, what is the length...
September 18, 2007 by Mom

college physic
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 horiontal ramp?The vertical height of the ramp is 1.5m above the cars and the horizontal distance must be clear is 20m.(b)If the ...
June 23, 2011 by noah

college physic
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 horiontal ramp?The vertical height of the ramp is 1.5m above the cars and the horizontal distance must be clear is 20m.(b)If the ...
June 23, 2011 by noah

general physics
Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the twelfth floor, 38 m above that pipe.
April 18, 2010 by Anonymous

Physics
Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the twelfth floor, 40m above that pipe. Pa?
December 11, 2012 by Melissa

macroeconomics
Suppose in 2009 the united states congress passes a minimum wage law that increases the minimum wage (the lowest legal wage) to 7.25 per hour and has a provision that increases the minimum wage at the beginning of each year based on the CPI for the previous year. a.) If the ...
February 27, 2010 by sally

math
Every member of a high school class of 150 students was polled to see whom they would vote for in the election for student body president. The poll results are shown below.
July 13, 2014 by Roberta

MATH ANALYSIS & TRIG
At noon, Al is 6km north of point O traveling south at 10km/h. Also at noon, Barb is 2km east of point ) traveling east at 5km/h. A) express the distance "d" between Al and Barb as a function of time "t" hours after noon. B) Find the time at which the distance is a minimum
October 29, 2013 by francis

Calculus
Find the absolute maximum and absolute minimum values of the function f(x)=x^3+6x^2-63x+4 on each of the indicated variables. Enter DNE for does not exist. (A) Interval = [-8,0] Absolute maximum = Absolute minimum = (B) Interval = [-5,4] Absolute maximum = Absolute minimum = (...
October 29, 2013 by Nate

Physics
The minimum distance between particles in a wave that have the same displacement and are moving in the same direction is called?
April 12, 2012 by Sharon

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