# draw a plane containing 4 coplanar points A, B, C, and D, with exactly 3 collinear poinys A, B, and D

20,434 results, page 98-
## Algebra 2

What is the slope of the line that passes through the points (-2, 4.15) and (1, 1.24)? Here's my work: m= y2-y1 / x2-x1 m+ 1.24-4.15 / 1 - (-2) m= -2.91/3 Is my answer correct? I really appreciate your help! Algebra isn't the easiest for me

*asked by Josh on September 4, 2013* -
## Family Law

A __________ agreement can be used by same-sex couples in all states. (Points: 5) prenuptial postnuptial premarital cohabitation Is it "D"

*asked by Andy on December 9, 2011* -
## Math

The points A(1, -2, 4), B(3, 5, 7), C(4, 6, 8) are three of four vertices of parallelogram ABCD. Determine the coordinates of vertex D Could someone please tell me to go about solving this question. Thanks a lot.

*asked by Dwight on October 1, 2010* -
## Math

The points A(1, -2, 4), B(3, 5, 7), C(4, 6, 8) are three of four vertices of parallelogram ABCD. Determine the coordinates of vertex D Could someone please tell me to go about solving this question. Thanks a lot.

*asked by Dwight on October 1, 2010* -
## college algebra

find the equation for the line with the given properties. Express in slope intercept form. Containing points P=(-3,-4) anda Q=(-1,-1)

*asked by ladybug on October 29, 2012* -
## Intro to comp

What unit of measure is used to determine the performance of a CPU? (Points: 5) Bits per second Cycles per second Hertz Instructions per second Is it D

*asked by Andy on December 2, 2011* -
## Algebra

Question: The slope that passes through the points (-2,-3) and (8,-3) is ______ . 1)positive 2)negative 3)zero 4)undefined I believe the answer is: zero. How do I justify this?

*asked by Gregg on January 2, 2016* -
## geometry

to all the people that helped me with my recent geometry questions thankyou my grade I received was 45 out of 50 points best I've ever done in my class.

*asked by crystal on January 13, 2011* -
## pre cal

ok I am at a total loss here. I have a graph with the points (0,-3) (0,-5) (3,-2) (5,-7) with vertical asymptote of (6,1) I have to find the rational function. where do I start?

*asked by anon on December 9, 2011* -
## Debate

I am to write a debate on the topic"Girls are better than boys."Please support the motion and and give me some points to back it up.

*asked by Omo on February 2, 2016* -
## Cal 3

Find critical points for f(x,y)= x^3+y^3-15x^2-6xy+18y^2+39x+138y I know you first take the partial derivative of x and y, but I am not sure where to go from there.

*asked by Erica on December 6, 2016* -
## physics

Question Part Points Submissions Used A bus slows down uniformly from 75.0 km/h (21 m/s) to 0.0 km/h in 220 m. How long does it take to stop?

*asked by Anonymous on November 18, 2011* -
## English

Is evil then triumphant?Do you think this statement holds any truth in the present day context?justify with at least four points

*asked by Anonymous on October 23, 2018* -
## computers

What are the main points to consider when choosing a monitor? What is the footprint? The user's eye sight. Cost. There may be othrs.

*asked by Diana on February 9, 2007* -
## statistics

2) Two individuals are running for mayor of Tallahassee. You conduct an election survey (N = 561) a week before the election and find that 57% of the respondents prefer candidate A. Can you predict the winner (α = 0.01)? (Hint: Use 50% as the proportion

*asked by taryn on March 19, 2009* -
## Physics

An archer puts a 0.29 kg arrow to the bow- string. An average force of 224.8 N is exerted to draw the string back 1.44 m. The acceleration of gravity is 9.8 m/s2 . Assuming no frictional loss, with what speed does the arrow leave the bow? Answer in units

*asked by Ryan on April 28, 2016* -
## biology

it is not known if a tall pea plant is homozygous or heterozygous (a hybrid). you decide to do a test cross to find out. if there are 40 offspring and 7 out of them are short, what is the genotype of the unknown pea plant? draw a punnett square that

*asked by amy on March 19, 2015* -
## Chemistry

Chloroform is a liquid that is not soluble in water. It has a density of 1.498g/mL. Astudent mixed a sample of chloroform and a sample water and observed the result. Sketch what the student saw, and identify all components of the drawing. for a container,

*asked by jess on September 19, 2011* -
## Math

At the time of George W.Bush's presidency, there have been 43 presidents of the United States. Draw a Venn diagram showing the following facts about where each served before assuming the presidency. How many presidents served as vice-president and in the

*asked by Eunice P on August 12, 2012* -
## Organic chemistry

How would I draw the structure for (3e,5z)-6-bromo-3-fluoro-3,5-nonadiene? I drew out the main chain of 9 C's, fluoride on 3, double bond between 3 and 4, double bond between 5 and 6, bromide extending out from 6. I understanding E is Trans (priorities

*asked by Huey on December 2, 2016* -
## accounting

V P3-10. Calculating Present Value of a Savings Fund. (Obj. 5) Hal Thomas wants to establish a savings fund from which a community organization could draw $850 a year for 45 years. If the account earns 6 percent, Hal will have to deposit $ now to achieve

*asked by cheryl on February 12, 2011* -
## for all mathematicians

Maxima/Minima Problem 3 An ellipse having perimeter of 2015π is to be draw on a paper whose sides are 2020π x 2020π. If you want to land the tip of your pen exactly to the perimeter of the ellipse, find the maximum probability of doing this. Express

*asked by zeff on October 7, 2016* -
## physics

a block(500N) is being pulled along a surface having coefficients of kinetic and staic friction of 0.45 and 0.5 respectively..draw a free body diagram of the block and find the minimum force that can be applied to the block at an angle 15¢X below the

*asked by Anonymous on December 5, 2011* -
## Physics help

A plane flies 230 mph at 60 degrees north of west for 2.5 hours. Answer the following questions. A. How far did it travel total? B. How far west did it go? C. How far north did it go? D. How fast did it go west? I don't know how to do this problem :(

*asked by Hannah on October 20, 2015* -
## physics

A 2.6 kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.75 m/s. The incline is 1.6 m long. (a) What is the acceleration of the block? (b) What is the coefficient

*asked by Khadija on February 11, 2014* -
## Physics

a Particle in x-y plane with const acceleration of 1.5m/s sq. in the direction making an angle 37degree with x_axis. At t=0 the particle is at origin and its velocity is 8m/s along x axis.Find the velocity and the position of the particle at t=4sec.

*asked by Ramakanth on August 1, 2016* -
## physics

An airplane traveling at v = 163 m/s emits a sound of frequency 1730 Hz. At what frequency does a stationary listener hear the sound as the plane approaches? Use 340 m/s for the speed of the sound and answer in Hz.

*asked by May on December 1, 2014* -
## physics

An airplane traveling at v = 152 m/s emits a sound of frequency 1850 Hz. At what frequency does a stationary listener hear the sound as the plane approaches? Use 340 m/s for the speed of the sound and answer in Hz.

*asked by Annie on December 3, 2014* -
## calculus

An artificially created lake is bordered on one side by a straight dam. The shape of the lake surface is that of a region in the xy-plane bounded by the graphs of 2y=16-x^2 and x+2y=4. Find the area of the surface of the lake.

*asked by Akki on February 17, 2015* -
## Dynamic

The block of weight 50 N is pressed against the spring so as to compress it a distance 0.6 m when it is at A. If the plane is smooth, determine the distance d, measured from the wall, to where the block strikes the ground. Neglect the size of the block.

*asked by Anonymous on December 11, 2012* -
## algebra

Flying with the wind, a pilot flew 600 mi between two cities in 4 h. The return trip against the wind took 5 h. Find the rate of the plane in calm air and the rate of the wind. Please show work. thanks

*asked by PLEASE NEED HELP on March 30, 2012* -
## math

Miguel is a cartoonist. Miguel drew 2 cartoon cells in 3 hours. If he keeps drawing at the same rate, about how many cells will he draw in 9 hours?

*asked by ashley on January 28, 2014* -
## Circle geometry

The endpoints of the arms of an inscribed angle are the endpoints of a diameter. What is the measure of the inscribed angle? How do you know? Please help and please explain how I would draw a diagram of thus. Think you for your help!

*asked by Cherie on April 23, 2014* -
## Physics

A vector drawn 4.7 cm long represents a force of 37 N. How long would you draw a vector for a force of 303.1 N? Answer in units of cm

*asked by Isabelle on October 17, 2017* -
## polynomials and zeros

5x^2 + 4x - 2 = 0 How would you solve this by graphing? Do you just draw a graph by finding x and y? The answer is -(2-sqrt14)/5, -(2+sqrt14)/5 There's no way you can just graph it and come up with these numbers by finding the integers of x. How would you

*asked by jack on June 27, 2017* -
## Liberal are maths

A jar contains 36 marbles if has 20 red 12 black and 4 green marbles two marbles are draw the first is not returned before the second one is drawn what is the probability that both marbles are red

*asked by Anonymous on November 15, 2017* -
## Algebra

Suppose you want to draw a rectangle where the width is 7 inches less than the length and the diagonal is 7 inches longer than the length. What are the dimensions of the rectangle?

*asked by Stephanie on May 30, 2017* -
## Physics

A light, rigid rod 1.039m in length joins two particles with masses 3.65kg and 4.94kg at its ends. The combination rotates in the xy plane about a pivot through the centre of the rod. Determine the angular momentum of the system about the origin when the

*asked by Helen on July 5, 2016* -
## physics

A plane sound wave propagated in air has individual particles which execute a periodic motion such that their displacement y from their rest position at any time t is y=5x10^(-6)sin(800pie(t)+theta). Calculate (i) wavelength. (ii) phase diff in degree

*asked by Edwin on March 22, 2010* -
## physics

A small turbo-prop commuter airplane, starting from rest on a Tallahassee airport runway, accelerates for 21.0 s before taking off. Its speed at takeoff is 56.0 m/s (125 mi/hr). Calculate the acceleration of the plane, assuming it remains constant. Express

*asked by Lo on January 9, 2011* -
## Science

Table 1: Temperature and volume data Trial Temperature (Celsius) Volume (mL) Starting Volume Room Temperature = Hot Water Trial 1 107 5.6ml Hot Water Trial 2 108.3 5.4ml Cold Water Trial 1 lo 4.4ml Cold Water Trial 2 lo 4.4ml PLOT AREA (Insert a graph that

*asked by ThuyD on January 30, 2012* -
## nicole

1. determine the exact value.. cot 7pi/6 and sec(-210degrees) 2. determine approximate measure of all angels that satisfy following, and draw a sketch to show the quadrants involved cosTHETA = -0.77, -pi lessOr same than theta less than pi and

*asked by math/trig on January 30, 2013* -
## Algebra - area

I hope I can explain this. I can't draw the shape here, but it is a triangular prism that looks like a wedge of cheese. The height is 20 cm and the three sides are 13, 37, and 40 cm. There is also a line drawn from the corner of the two sides that are 13

*asked by Sylvia on February 27, 2013* -
## Algebra

I hope I can explain this. I can't draw the shape here, but it is a triangular prism that looks like a wedge of cheese. The height is 20 cm and the three sides are 13, 37, and 40 cm. There is also a line drawn from the corner of the two sides that are 13

*asked by Sylvia on February 28, 2013* -
## Statistics

The Toylot company makes an electric train with a motor that it claims will draw an average of only 0.8 ampere (A) under a normal load. A sample of twelve motors was tested, and it was found that the mean current was x = 1.26 A, with a sample standard

*asked by Torri on April 24, 2013* -
## physics

Three blocks on a frictionless horizontal surface are in contact with each other. A force F is applied to block A and the blocks start to slide to the right of their initial position. Determine the acceleration of the system, if m_A = 12 kg, m_B = 38 kg,

*asked by sean on February 21, 2014* -
## Environmental science

A municipal landfill has available space of 16.2 ha at an average depth of 10 m. Seven hundred sixty-five (765) m3 of solid waste is dumped at the site 5 days a week. The waste is compacted to twice its delivered density. Draw a mass-balance diagram and

*asked by Jazmin on January 28, 2011* -
## English

1. A person who tells actors in a film or play how to play their parts. (The definition of 'director') ( In the expression, what is the part of speech of 'in a film or play'? Is it an adjective phrase or an adverbial phrase?) 2. I dislike him to go abroad.

*asked by John on April 17, 2009* -
## English

Hi, I was wondering if somebody could help me understand this writing prompt. I'm not sure If I'm supposed to talk about the characters' different points of view in some goals toward achieving sucess or if I'm supposed to tell what each characters' goals

*asked by Isabel on October 14, 2006* -
## English

i writing a process analysis essay on topic staying healthy in winter and i making it a directional type of process analysis essay because it be easy to direct people on how to do things. the only points i get for staying healthy in winter be wearing warm

*asked by Mohammad on April 12, 2012* -
## finite

0/20 points | Previous Answers TanFin11 4.1.034. Ask Your Teacher My Notes Question Part Points Submissions Used A company manufactures two products, A and B, on two machines, I and II. It has been determined that the company will realize a profit of

*asked by Anonymous on March 6, 2015* -
## English

Question 7 Which of the following is correct? Streets in Pittsburgh streets in Pittsburgh sts. in Pittsburgh aves. in Pittsburgh Question 8 5 points Save Which of the following is the correct form to use in a sentence? 25 pct. 25 percent 25 perct. 25%

*asked by christopher on April 26, 2010* -
## physics

A bicyclist rides 5.0km due east, while the resistive force from the air has a magnitude of 3.0N and points due west. The rider then turns around and rides 5.0km due west, back to her starting point. The resistive force from the air on the return trip has

*asked by ajo on December 9, 2007* -
## maths

r1 and r2 are unit vectors in the x-y plane making angles a and b with the positive x-axis.by considering r1.r2 derive cos(a-b)=cos(a)cos(b)+sin(a)sin(b)

*asked by ashely on February 11, 2012* -
## physics

a butterfly at eye level is 20 cm in front of a plane mirror. you are behind the butterfly, 50 cm from the mirror. what is the distance between your eyes and the image of the buterfly in the mirror?

*asked by na on October 31, 2009* -
## Physics

Vectors A and B are in the xy plane and their scalar product is 20.6 units.? If A makes a 27.8 angle with the x axis and has magnitude A= 14.8 units, and B has magnitude B= 29.0 units, what can you say about the direction of B?

*asked by Emma on November 17, 2012* -
## Vector

Let 𝑎⃗ and 𝑏 be two vectors in the xy plane making angles 𝜃 and ∅ with the x axis, respectively. Use vector algebra to show that: cos(𝜃 − ∅) = cos 𝜃 cos ∅ + sin 𝜃 sin ∅

*asked by HelpMaths on September 23, 2014* -
## SCIENCE

a force of 70N keeps a 70-kg pilot in circular motion if he is flying a small plane at 35 m/s in circular path, what is the radius of the circular path?

*asked by ace ponce on July 6, 2014* -
## Chemistry

Match each of the questions below with either "True" or "False" as appropriate. -The metals with the highest ionization energies are most likely to be found in nature in the elemental state. - Metals usually have higher melting points than nonmetals. -

*asked by Lisa on April 21, 2007* -
## Math

[Multivariable Calc] Let R be the region that is inside of the cardioid r=2 + cos(theta) and outside the circle r=2? So i need to calculate the: *area of R, as well as *the volume above R and below plane z=12-3x *the density of that solid if the density

*asked by Ryan on November 28, 2015* -
## algebra

A pilot heading his polane due north finds the actual direction of travel to be 5.2 NE. The planes's air speed is 315 mi/h, and the wind is from die west. Find the plane's ground speed and the velocity of the wind.

*asked by Arielle on November 2, 2011* -
## trigonometry

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35° and to the other is 55°. How far apart are

*asked by heather on December 3, 2012* -
## Physics

An airplane pilot wishes to fly due west. A wind of 80km/hr is blowing towards the south. a) If the speed of llane in air is 320km/hr, in which direction should the pilot head? b) What is the speed of plane over the ground? (Illustrate with diagram)

*asked by Amrit on November 5, 2016* -
## Calc

Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

*asked by Anon on November 23, 2016* -
## physics

The following objects are released from rest and allowed to roll down an inclined plane. Rank the objects by the order of which they will arrive at the bottom of the incline. (1 = the first to arrive, 2 = the second, etc.) I = 2611 kg*m^2, M = 50 kg, R =

*asked by Katie on March 17, 2012* -
## Physics

A proton follows a spiral path througha gas in a magnetic field of .010 T , perpendicular to the plane of the spiral.In two successive loops, at point P and Q, the radii are 10.0mm and 8.5 mm,respectively.Calculate the change in Kinetic energy of the

*asked by Jenish on March 3, 2008* -
## Physics

A proton follows a spiral path througha gas in a magnetic field of .010 T , perpendicular to the plane of the spiral.In two successive loops, at point P and Q, the radii are 10.0mm and 8.5 mm,respectively.Calculate the change in Kinetic energy of the

*asked by jenish on March 2, 2008* -
## math

F(x,y) represents a velocity field of a fluid over a surface z=6-3x-2y.If the magnitude of the velocity in the direction of the unit normal vector,n on S is 3z/(surds14), compute the flux of F(x,y) over the surface S in the first octant oriented upward

*asked by Adam on December 11, 2016* -
## math

F(x,y) represents a velocity field of a fluid over a surface z=6-3x-2y.If the magnitude of the velocity in the direction of the unit normal vector,n on S is 3z/(surds14), compute the flux of F(x,y) over the surface S in the first octant oriented upward

*asked by Adam on December 10, 2016* -
## Calc 3

Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

*asked by Anon on November 23, 2016* -
## Math

Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

*asked by Anon on November 24, 2016* -
## math-IS MY ANSWER RIGHT?

*asked by Anon on November 24, 2016* -
## Calculus 3

Vectors The thrust of an airplane's engine produces a speed of 400 mph in still air. The wind velocity is given by . In what direction should the plane travel to fly due south? Give your answer as an angle from due south.

*asked by Anonymous on May 11, 2011* -
## Physics

An airplane is flying in a horizontal circle at a speed of 106 m/s. The 81.0 kg pilot does not want the centripetal acceleration to exceed 6.16 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

*asked by Kyla on November 14, 2012* -
## College Algebra

A jet flies from Atlanta to Dubuque a distance of 900 miles. After traveling the same amount of time on the return flight,the pilot mentioned they still had 150 miles to go. The airspeed of the plane was 300 miles per hour. How fast was the wind blowing?

*asked by Rachel on September 26, 2012* -
## Physics

An airplane is flying in a horizontal circle at a speed of 104 m/s. The 73.0 kg pilot does not want the centripetal acceleration to exceed 6.98 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

*asked by Anonymous on March 6, 2013* -
## Intro to Physics

A uniform hoop and a disk, having the same mass and the same radius, are released simultaneously from rest at the top of a ramp. Which object reaches the bottom of the ramp first? The ramp is 1.0meter high. The incline of the plane is 30 degrees. Assume no

*asked by Anonymous on October 31, 2012* -
## math stats

you draw from a deck. if you get a red card you win nothing. if you get a spade you win $5. for any club you win $10 plus an extra $20 for the ace of clubs. A. create a probability model for the amount you win. B. Find the expected amount you will win. C.

*asked by jessica on October 3, 2011* -
## physics

You are given a vector in the xy plane that has a magnitude of 90.0 units and a y component of -40.0 units. What are the two possibilities for its x component?

*asked by michael on September 30, 2012* -
## physics

You are given a vector in the xy plane that has a magnitude of 85.0 units and a y component of -60.0 units. What are the two possibilities for its x component?

*asked by joe on September 30, 2012* -
## Math

one out of every three seats on an aiplane is empty. There are 72 passengers on the plane. How many empty seats are there on the airplane?

*asked by sadf on November 10, 2010* -
## (act practice)

In the standard (x,y) coordinate plane, point M with coordinates (5,4) is the midpoint of AB, B has coordinates (7,3). What is the coordinate of A?

*asked by Megan L J on June 10, 2010* -
## physics

You are given a vector in the plane that has a magnitude of 86.0 units and a component of -30.0 units. What are the two possibilities for its component?

*asked by dj on October 8, 2011* -
## maths

The position vector of m in the same plane are as the point a and b is given by m=1÷2(a+b).if the vector A(-4,-3),B(2,-1).What is the direction and the relationship of vector AM and vector BM

*asked by Emmanuel on February 4, 2016* -
## physics

1. Which will roll faster down an inclined plane, a can of water or a can of ice?A) A can of water.B) Both the same.C) A can of ice.

*asked by Mrs G on March 3, 2012* -
## physics 102

An aluminum wing on a plane is 30.6 m long when the temperature is 20 oC. At what temperature would the wing be 0.06 m shorter

*asked by pocholo on April 28, 2013* -
## physics

1. Which will roll faster down an inclined plane, a can of water or a can of ice? A) A can of water. B) Both the same. C) A can of ice.

*asked by jim on March 1, 2012* -
## Physics

You are given a vector in the xy plane that has a magnitude of 95.0 units and a y component of -40.0 units. What are the two possibilities for its x component?

*asked by H.Pales on October 6, 2008* -
## math Help!!!!

You have 1 red marble, 1 blue marble, 1 yellow marble and 1 white marble. You draw 2 marbled out of the bag without replacing. What is the probability that you may choose 1 red marble?

*asked by tanisha on May 18, 2015* -
## Physics

A 4 kg puck can slide with negligible friction over a horizontal surface, taken as the xy plane. ˆ The puck has a velocity of 3i m / s at one instant ti = 0 . Eight seconds later, its velocity is to be ˆˆ 8i+10 j m / s . Find the magnitude and direction

*asked by Maryam on November 16, 2013* -
## Physics

An animal-rescue plane flying due east at 33.0 m/s drops a bale of hay from an altitude of 58.0 m. If the bale of hay weighs 173 N, what is the momentum of the bale the moment it strikes the ground?

*asked by Anonymous on February 23, 2013* -
## physics

Block A has a mass of 6.07 kg and is on a rough incline of 12.5o to the horizontal. Block B has a mass of 4.82 kg and the coefficient of kinetic friction between Block A and the plane is 0.268. What is the acceleration of the blocks? What is the tension in

*asked by Yul on November 10, 2011* -
## Math

Determine whether or not the given linear transformation is invertible. If it is invertible, compute its inverse. (If the transformation is not invertible, enter IMPOSSIBLE. Use theta for θ.) Tθ:R2→R2, the reflection of the plane in the line formed by

*asked by Peter on March 11, 2016* -
## Calculus

The base of a solid in the first quadrant of the xy plane is a right triangle bounded by the coordinate axes and the line x + y = 2. Cross sections of the solid perpendicular to the base are squares. What is the volume, in cubic units, of the solid?

*asked by Ali on July 28, 2015* -
## Physics

An animal-rescue plane flying due east at 33.0 m/s drops a bale of hay from an altitude of 58.0 m. If the bale of hay weighs 173 N, what is the momentum of the bale the moment it strikes the ground?

*asked by Anonymous on February 24, 2013* -
## math

2 airplanes start at the same time from airports 500 km apart. Each flies with an airspeed of 200 km/hr toward the other airport. One reaches its airport half an hour before the other plane reaches the other airport. How fast is the wind blowing?

*asked by Ed on February 16, 2012* -
## Physics

An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^-5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane? (A) 5 m/s (B) 20 m/s (C) 7 m/s

*asked by Arielle on November 4, 2011* -
## Physics

A single conducting loop of wire has an area of 7.4 10-4 m2 and a resistance of 110 Ω. Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this field change if the induced current in the loop is to be

*asked by Valerie on April 8, 2013* -
## Physics

An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^-5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane?

*asked by Arielle on November 6, 2011* -
## Calculus

"The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. Two streetlights are 40m apart and one is twice as strong as the other. Where

*asked by Stuck on June 21, 2010*