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February 11, 2016

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

Number of results: 53,725

Math/Algebra...can you check this please...
f(x)= -4(x+5)^2+3 The vertex is : -5,3 The line of symmetry is x= 3 The maximum/minimum value of f(x)= -5 Is the value of f(-5)=3, a minimum or maximum? Minimum Graphing would open from the bottom going up on the negative side.
August 22, 2010 by Angel Eyes

Math
What are all the whole number pairs of length and width values that give an area of 24 square meters for a rectangle?
October 18, 2010 by Nicole

Astronomy
Calculate the ratio of the escape velocities from the moon and Earth. Calculate the ratio of the escape velocities from the moon and Earth In order to escape the gravitaional pull exerted by a central body on an orbiting object, it must must achieve a minimum inertial velocity...
April 10, 2007 by Manny

pysics.
What is the minimum work needed to push a 975 kg car 230 m up along a 17.5 incline? Assume the effective coefficient of friction retarding the car is 0.20?
October 12, 2009 by Joe

AP Calculus
A cardboard box of 108in cubed volume with a square base and no top constructed. Find the minimum area of the cardboard needed. (Optimization)
October 31, 2010 by Anonymous

structure and function of the human body
What is the importance of ATP? explain where carbohydrate metabolism occurs in the cell, what additonal ingredient is needed and what waste product is produced in this process?
November 27, 2012 by Liz

Physics
One way to determine the distance to the moon is to bounce a laser beam off a mirror on its surface. How far away is the moon if it takes 2.56 seconds for the laser to "echo" off the moon?
April 2, 2013 by Denise

science
Dan wants to lift his car using a movable pulley system like the one shown in the picture. Using a movable pulley system will decrease the force needed to lift the car by increasing the A. total mass of Dan's body. B. strength contained in Dan's arms. C. total mass of the car...
February 7, 2016 by Lakshmi

Algebra
The data below represents the average score per game of the top 40 NBA players, rounded to the nearest whole number. Find the minimum, Q1, median, Q3, maximum for the data. Stem l leaf 1 l 55667777888888899 2 l 00000011123445566679 3 l 135
May 2, 2013 by Allie

physics
A 56.0 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.00 turns each second. The distance from one hand to the other is 1.5 . Biometric measurements indicate that each hand typically makes up about 1.25 of body weight. ...
November 8, 2010 by steph

Physic (concepts-please check my thoughts)
A net torque applied to a rigid object always tends to produce? a)translational acceleration b) rotational equilibrium c) rotational acceleration d) rotational inertia e) none of these work (c) Torque produces torsion and tends to produce rotation. The net torque acting on a ...
December 10, 2006 by Diane

math calc 2
a cattle trough has a trapezoidal cross section with a height of 1 m and horizontal sides of width 1/2 m and 1 m assume the length of the trough is 10 m. A. how much work is required to pump out the water in the trough? B. if the length is doubled does the amount of work ...
October 25, 2012 by arnulfo

math calc 2
a cattle trough has a trapezoidal cross section with a height of 1 m and horizontal sides of width 1/2 m and 1 m assume the length of the trough is 10 m. A. how much work is required to pump out the water in the trough? B. if the length is doubled does the amount of work ...
October 26, 2012 by arnulfo

Health Care
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 ...
May 30, 2008 by sue

bio
I did a pig dissection , but i am not to sure about these questions, any help would be great ! 1. The lungs of a fetal pig serve as a protection for what important body organ 2. The respiratory system is located on the ventral side of the pigs body, what 3 ways is the tract ...
January 22, 2012 by Annie

Physics - urgent, please help
In its final trip upstream to its spawning territory, a slamon jumps to the top of a waterfall 1.9m high. What is the minimum vertical velocity needed by the salmon at the end of this motion?
February 21, 2009 by Li

Chemistry
Given the equation: 6CO2(g) + 6H2O(l) -> C6H12O6(s) + 6O2(g) What is the minimum number of liters of CO2(g), measured at STP, needed to produce 32.0 grams of oxygen? 1) 264 L 2) 32.0 L 3) 192 L 4) 22.4 L How do I solve?
June 14, 2009 by Ken

calculus
A small dog shelter in the shape of a rectangular solid is to have a square base and an open front. If the volume is to be 36ft^3, find the dimensions for which the amount of material needed is a minimum. V=2x*y
November 4, 2011 by HELP!

Math
When you look out over an unobstructed landscape or seascape, the distance to the visible horizon depends on your height above the ground. The equation d=3/2h is a good estimate of this, in which d=distance to horizon in miles and h=height of viewer about the ground in feet. ...
January 17, 2011 by Sherry

algebra
A bicyclist rode into the country for 5hr. In returning her speed was 5 mi/h faster and the trip took 4 hr. what was her speed each way? What equation would I use to solve this problem i have no idea Let V be her speed going out, so V+5 will be her speed coming back. Let the ...
March 23, 2007 by rob

physics
whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight 1-wht is thw weight of body in water? 2-wht is thw weight of body in air 3-wht is upthrust on the body? 4-wht is the vol. of body? ...
September 17, 2015 by Riya sood

Science
Find the mean time for each ramp length Mean 3.6s Find the ball's acceleration for each mean time using the equation below where D is distance or ramp length and T is time Acceleration=2D/T^2 1.5m(Distance) Use 3.6
October 2, 2014 by Coleson

Science, Physics
Concave mirrors can be used as for shaving or applying make up. The face must be inside the focus. You hold a concave mirror, with a focal length of 40 cm, about 30 cm from your face. Where is your image located? How much bigger than your face is the image?
March 19, 2015 by Nora

Brock
An object creates an inverted, virtual image, 3 cm tall, 10 cm from a converging mirror with a focal length of 15 cm. Where is the object located? How tall is it? I didn't think mirrors created inverted virtual images...
February 24, 2009 by Physics

Physics
An unknown mass has an acceleration of 2 m/s2 to a 1 kg body.if the same force accelerate another body of 8 m/s2 .what is the mass of the body?
June 14, 2014 by Espie

physics
If a person does 80 J of work in moving a 30 \rm{kg} box over a 13 m distance on a horizontal surface, what is the minimum force required?
October 6, 2010 by Jon

science and technology
whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight 1-wht is thw weight of body in water? 2-wht is thw weight of body in air 3-wht is upthrust on the body? 4-wht is the vol. of body? ...
January 8, 2016 by raman

Physics
A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 {kg}, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2100N . The tension in the ...
March 12, 2013 by Gareth

Math
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 83 minutes and a standard deviation of 13 minutes. Answer the following questions. What is the probability of completing the exam in one hour or less (to 4 ...
October 22, 2015 by Kelsey

math
using coins from home, build a design with mirror symmetry on student sheet 5, Half and half. Then answer the following questions.Build side A of your design on one side of the sheet, hal and half. Amount of $ side a is worth and how much the whole design is worth?
September 16, 2008 by tanya

physics
What is the minimum work needed to push a 950 kg car 890 m up along a 8.0 degree incline? Assume the effective coefficient of friction retarding the car is 0.22.
October 10, 2011 by Luke

math
a rectangle has an area of 48 square yards. For what whole number values of length and width will the rectang,e have the smallest perimeter?
April 29, 2015 by Maddie

math
What is the perimeter of a rectangle if each side is a whole number of meters,and what are the possible dimensions for the length and width. List them and explain your answer.
December 2, 2015 by sybil

physics
Body A of mass M has an original velocity of 6.2 m/s in the +x-direction toward a stationary body (body B) of the same mass. After the collision, body A has velocity components of 1.1 m/s in the +x-direction and 2.2 m/s in the +y-direction. What is the magnitude of body B's ...
March 11, 2011 by Steve

algebra
2. The equation D=1.2 square h gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a. Solve this equation for h. b. Longs Peak in Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from the...
March 23, 2010 by kathy

physics.. important stuff !
i still do not understand?? can someone please help me out??? (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force accelerate the body on whic it acts?? (c) Upon what threee factors does the centripetal...
January 15, 2007 by maria

Spanish
can't you do actual revision ; instead of just words. it would make it a whole lot easier, because what if we didn't need to revise on those particular words and needed RESEARCH?
November 6, 2008 by Grace

Physics
2.- A 2inx4inx8ft is leaning against the wall, draw afree-body diagram of forces on it. Give an expression throughdetailed steps using the diagram what would be the minimum angle ofthe wooden bar with the floor so it wont slide.
June 11, 2013 by Chi-Chi

physics
Calculate the work done in Joules when an athlete of body weight 96 kg bench steps on a bench of height 25 cm for 48 steps. Please present this answer rounded to a whole number without decimal places.
December 4, 2011 by sv

math
two boats p and q are at points whose position vector are 4i+8j and 4i+3j respectively. both of the boats are moving at a constant velocity of p is 4i+j and q is 2i+5j. find the position vectors of p&q and pq after t hours, and hence express the distance between p and q ...
February 6, 2016 by Joshua

algebra
sara ran 1 2/5 miles around track. this was 5 /8 of distance around the whole track. what is the distance around the track?
January 30, 2012 by denny

science
a body covers a distance of l metre along a semicircular path. calculate the magnitudeof displacement
June 15, 2013 by harini

physics
a body travels from rest with acceleration 8ms find its velocity when it has covered a distance of 100m
November 8, 2015 by ezekel ayuba

physics
A particle moving with a constant acceleration describes in the last second of it's motion 9/25th of the whole distance.of it starts from rest ,how long is the particle is in motion and through what distance does it move if it describes 6cm in first second? options 1. 5s,150 ...
May 26, 2012 by srikala

physics- drbob can u plz help me???
VERY IMPORTANT FOR AN ESSAY ASSIGNMENT. PLEASE HELP ASAP! THANK U VERYYYYY MUCH! 1. What force is needed to give a mass of 25 kg an acceleration of 20m/s squared? 2. A force of 6N acts upon a 2-kg mass. What is the acceleration of the masS? 3. It takes a force of 50N to give a...
December 13, 2006 by Nicola

physics project
how to develop a Rube Goldberg machine that will (1) raising a flag on a pole and (2) squeeze a minimum of a 1 cm length of toothpaste on a toothbrush.
May 7, 2011 by ganga

Physics
an aircraft lands on a runway with length of 205 m at a speed of 295 km/h what is the minimum constant deceleration required for a safe landing
January 28, 2015 by mike

Electrical
A matching network consists of a length of T-line in series with a capacitor. Determine the length(in wavelength) required of the T-line section and the capacitor value needed (at 1 GHz) to match a 10-j35 ohm load impedance to the 50 ohm line.
November 13, 2008 by Anonymous

Physics
If a 65 kilogram load was raised 6 meters in 60 seconds determine the minimum rated wattage of the motor needed to accomplish this assuming the motor is 75% efficient. give your answer in W.
January 31, 2014 by Joe

Physics
A personne walking at a speed of 1.7m/s see's a stoped bus 25m from him. At this moment this person starts to run with an acceleration of 1,3m/s2. After 4 secondes this personne has reached his maximum speed et it stays constant, but at the same time the bus starts moving and ...
March 22, 2007 by Nick

physics
what minimum initial velocity must aprojectile have to reach atarget at a distance of 25m away? (g: 10m/s)
November 23, 2015 by jemal

Physics
Find the distance light travels from its starting point, S to its final point, F by traveling two different paths: Reflecting from point A, and reflecting from point B. From point S to A is 30 cm, from point A to B is 30 cm, from point B to F is 30 cm, and from the mirror to ...
March 9, 2008 by Tom

science
You drive on an interstae 10 from San Antonio to Huston, half the [b]time[/b] at 55km/h and the other half at 90km/h. On the way back you travel half the [b]distance[/b] at 55km/h and the other half at 90km/h. What is your average speed from San Antonio to Houston What is your...
September 10, 2006 by ben

geometry
A cylindrical tank is being constructed to hold 10,000 ft^3 of water. The diameter of the tank is 36ft. What is the minimum height needed for the tank?
April 11, 2012 by Piggy

gometry
in a circle of radius 17cm, two parallel chords are drawn on opposite sides of a diameter. the distance between the chords is 23cm. if the length of one chords is 16cm, find the length of the other.
June 17, 2014 by Anonymous

Calculus
Work of 1 joules is done in stretching a spring from its natural length to 14 cm beyond its natural length. What is the force (in newtons) that holds the spring stretched at the same distance (14 cm)?
May 31, 2011 by Kim

Physics
‎1. A 3kg body moving towards the east with a speed of 5 m/s collides with a 2kg ball originally at rest. After the collision the 3kg body moves in a direction of 25 degrees N of E. If the collision is perfectly elastic Find: a) the magnitude and direction of the ...
February 21, 2011 by Sean

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
February 25, 2013 by Mia

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
March 7, 2013 by Amber

Algebra 2
Given the area of the figure, find its perimeter to the nearest tenth. 1. A = 90 ft^2; number of squares: 6. A: ? 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, 4 short questions
VERY IMPORTANT FOR AN ESSAY ASSIGNMENT. PLEASE HELP ASAP! THANK U VERYYYYY MUCH! 1. What force is needed to give a mass of 25 kg an acceleration of 20m/s squared? 2. A force of 6N acts upon a 2-kg mass. What is the acceleration of the masS? 3. It takes a force of 50N to give a...
December 13, 2006 by Nicola

ellipses
If the major axis is vertical and has a length of 10 units,the minor axis has a length of 8 units,and the center C=(4,-2).Fill in the missing denominators for the equation and determine the distance from C to the foci (c).
May 11, 2012 by Daniel

science 1 question
Which of the following best explains why it is necessary for the body to eliminate waste? a) to allow the body to maintain a certain size b) to keep the body's internal environment in balance c) to make room for nutrients coming in d) to reduce unpleasant odors is it b or c? ...
February 12, 2015 by SkatingDJ

stat
Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. A researcher wishes to estimate the mean amount of money spent per month on food by households in a certain neighborhood. She desires a margin of error of . Past...
April 26, 2015 by jim

College physics-oscillations
A ball is attached by two spring as shown [vvvOvvv]. If the mass is displaced a distance △x BELOW the equilibrium position h (see figure A). Determine whether vertical SHM is possible for the system shown.If so, find the natural frequency. [Assume that the vertical extension...
December 4, 2010 by Marco

physics
2. a body of mass 20kg is released from rest t the top of a rough slope which is inclined at 30 degrees to the horizontal.six seconds later the body has a velocity of 21 m.s down the slope. find the resistance to motion in newtons experienced by the body?
April 25, 2011 by janell

physics
a body thrown vertically upward returns to the earth in 3sec what was the initial velocity of the body? what height did the body reach? neglect the resistance of air. The answer after solving is 14.7m/s and 11m. please tell me how the answer is arrived.
July 10, 2011 by pavatharani

Elementary mechanics
A force of 2i+7jN acts on a body of mass 5kg for 10 seconds. The body was initally moving with constant velocity of i-2jm/s.Find the final velocity of the body in m/s, in vector form. (a)5i+12j(b)12i-5j(c)10i-7j(d)7i+10j
July 14, 2013 by jane

That darn PHYSICS again
Hi! i need some help with this ASAP! a body is projected upwards from a point on level ground with a velocity of 45 m/s at an elevation of 30 degrees. Working from the expression for uniformly accelerated motion in a straight line, determine 1) the time of flight 2) the ...
October 3, 2006 by Sean

Math (Calculus)
Tower 1 is 60 ft high and tower 2 is 20 ft high. The towers are 140 ft apart. A guy wire is to run from point A to the top of each tower. [See a picture of this situation on page 274 of the textbook.] How many feet from tower 1 should point A be so that the total length of guy...
November 20, 2013 by Alexis

physics
a pendulum clockis lag by 2 min during a whole 24 hours.what correction should be made in its length so that it keep the right time?
December 6, 2008 by saad anis

Math (Geometry)
A rectangle has a perimeter of 12 m. If each side is a whole number of meters, what are the possible dimensions for the length and width? List them and explain your answer.
March 11, 2010 by Sammi

math
Whats all the possible whole-number pairs of length and width for a rectangle with a perimeter of 18 meters? and how do i put it in a table/chart
September 22, 2010 by elizabeth Sosnovskiy

Pre-Algebra
Make a table with all the whole number pairs of length and width values that give an area of 24 square meters.
October 3, 2011 by Dylan

math
For the given perimeter, find the length and width of the rectangle with the greatest area Use whole numbers only. 60yd 54cm
February 8, 2012 by stephanie

math
what is the volume of a cylinder that has 10 inch length and 4 inches radius to the nearest whole number? Use 3.14 for pi. My answer is 502.65 rounding is 503.
June 22, 2015 by siulani perez

physics
An observer uses a 10 sided mirror to measure the speed of light. A clear image occurs every one-tenth of a rotation when the mirror is rotating at 4.31x10^2 rev/s. The total path of the light pulse is 60 km, measured from the light source to the mirrors and reflected back to ...
September 20, 2013 by sam

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 17, 2007 by Lindsay

Math
You are bending a wire to make a coat hanger. The length of the wire is 88 centimeters, and 20 centimeters are needed to make a hook hanger. The triangular portion of the hanger is an isosceles triangle. The length of one leg of this triangle is 3/5 the length of the base. ...
November 1, 2011 by Steven

Science Easy 2 Points!
Which of the following best explains why it is nessecary for the body to eliminate waste? a) to allow the body to maintain a certain size b) to keep the body's internal enviroment in balance c) to make room for nutrients coming in d) to reduce unpleasent odors What happens to ...
December 12, 2013 by Billabong

Algebra Help
A motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 miles at a certain rate; traffic then increased and for the next 6 miles he averaged 10 miles per hour less than his original speed; then traffic eased up and he traveled the ...
October 25, 2013 by Jane

Pre Calc
I do not see why I got two different equations for my answer A weight attached to the end of along spring is bounicng up and down. As it bounces, its distance from the floor varies sinusoidally with time. You start a stopwatch. When the stopwatch reads 0.3 s, the weight first ...
December 10, 2009 by Joe

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100cm and a return swing of 99cm. a.)On which swing ...
February 19, 2015 by Nicole

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100cm and a return swing of 99cm. On which swing will ...
February 23, 2015 by Nicole

statistics
A researcher wishes to estimate the proportion of adults living in rural areas who own a gun. He wishes to achieve a margin of error of 2.8%. What is the minimum sample size needed?
July 28, 2014 by liz

Science
Object distance, image distance, and radius of curvature are ____ for curved mirrors. interdependent independent directly related unrelated A _________(__________ A B ( F In the diagram shown above, the image of object A would be (The diagram may be a bit confusing, so sorry. ...
January 9, 2012 by Anonymous

Math
Which of the following would require finding the area? A. Determining the number of sugar cubes in a box B. Determining the amount of paper needed to cover a bulletin board C. Determining the length of trim needed to go around the edge of a bulletin board D. Determining the ...
January 30, 2012 by Andrew

Algebra
Decreasing cube. Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) equals s power of 3 - 13s power of 2 + 54s - 72. a) Find V(10). b) If the new width...
August 6, 2010 by Simone

math
Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help
December 9, 2011 by kia

Physics
Why is the image distance equal to the focal length when the object is a very great distance from a simple thin converging lens? IT is that because all light converges on the focus. THe incoming rays are all parallel with the optic axis.
April 10, 2007 by Caleb

Algebra
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: w=Cr -2 where C is a ...
August 13, 2011 by Sue Bonds

Physics
A body travels from rest with acceleration 8m/s(squared)Find its velocity when it has covered a distance of 100 meter?
August 24, 2014 by Ruth

vn college
sodium has a body centred packing.If a distance between two nearest atom is 3.7A,then lattice parameter is ?
July 3, 2015 by Saraswat

rew
A body travels from rest with an acceleration of eightmeterperseconds find it velocity when it has covered a distance of hundred meters
November 1, 2015 by dare

Technical Math (College)
Question: The formula s=4.90t^2 gives the distance s in meters that a body falls in a given time t. Find the distance a ball drops in 4.2 seconds. Use the rules for multiplication of measurements in evaluating the answer. ------------------------------------ I understand how ...
January 20, 2016 by Shelly

SCI/241
Hello, I have to answer this question for my assignment. Compare and contrast how different electrolytes-sodium, potassium, and chloride-function in the body. This is what I have so far but I am not sure if this is the whole answer. The Electrolytes in your body are sodium and...
December 10, 2010 by Nikol

Physics
A small first-aid kit is dropped by a rock climber who is descending steadily at 1.9 m/s. After 2.5 s, what is the velocity of the first-aid kit, and how far is the kit below the climber? My question is, how can you determine how fast/far the kit is going???? If the kit is ...
September 17, 2006 by Help again?? Becca

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 22, 2012 by laurie

physics
an airplane has a takeoff speed of 80 meters per second which it reaches 35 seconds after starting from rest. What is the minimum length of the runway?
September 29, 2009 by shirley

College physics-oscillations
A ball is attached by two spring as shown [vvvOvvv]. If the mass is displaced a distance △x BELOW the equilibrium position h (see figure A). Determine whether vertical SHM is possible for the system shown.If so, find the natural frequency. [Assume that the vertical extension...
December 4, 2010 by Marco

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