Tuesday

July 29, 2014

July 29, 2014

Number of results: 48,671

**College physics**

Two 2.4 cm diameter disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.3×10^5 V/m. What is the voltage across the capacitor? How much charge is on each disk? An electron is launched from the negative plate. It strikes the ...
*July 14, 2010 by Emoni*

**Physics Please help4**

Two 1.50cm -diameter disks spaced 1.80mm apart form a parallel-plate capacitor. The electric field between the disks is 5.10×10^5 V/m I got the voltage as =918 but B. How much charge is on each disk? _________C? and C. An electron is launched from the negative plate. It ...
*May 21, 2014 by Josh *

**physics**

The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 100 cm apart on the same axle. From the angular displacement 22.9 ◦ of the two bullet holes in the disks and the rotational speed 707 rev/min...
*October 14, 2011 by liz*

**physics**

The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance d apart on the same axle (Fig. below). From the angular displacement of the two bullet holes in the disks and the rotational speed of the disks, we...
*May 18, 2013 by Anonymous*

**finite math**

a box contains 40 computer disks, 5 are defective. Three disks are selected from the box without replacement and regard to order. what is the probability that a. all three of the disks are defective b. none of the three disks are defective c. exactly one of the three disks is ...
*March 24, 2011 by ophelia*

**Physics**

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks and the rotational ...
*April 15, 2009 by Amanda*

**Physics**

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks and the rotational ...
*April 15, 2009 by Amanda*

**statistics**

Media Disk, Inc. duplicates over a million 3.5” floppy disks each year by copying masters to stacks of blank disks. The company buys its blank stock from two different suppliers, A and B. The manager has decided to check each supplier’s stock by counting the rejected disks in ...
*October 3, 2010 by Anonymous*

**physics**

There are two spinning disks A and B arranged so that they initially are separated but can be pushed into contact. Disk A is made of a lighter material, so it has a moment of inertia that is one third that of disk B. Disk A starts off spinning at some ùi when the two disks are...
*July 12, 2012 by Jessica*

**school**

Two disks are spinning freely about axes that run through their respective centres (see figure below). The larger disk (R1 = 1.42 m) has a moment of inertia of 1180 kg · m2 and an angular speed of 4.0 rad/s. The smaller disk (R2 = 0.60 m) has a moment of inertia of 906 kg · m2...
*October 30, 2013 by Aaron*

**physics**

Which has the greater IMA: a screw with closely spaced threads or a screw with threads spaced farther apart? Can someone answer this
*April 11, 2012 by kevin*

**geometery**

Samantha has a dog that loves to chase flying disks. To keep her disk sperate form other disks, Samantha painted a triangle on it, with one point of the triangle in the center of the disk. As she throws the disk for the dog, what two transformations does the triangle undergo? ...
*February 21, 2008 by alexis*

**geometry**

Samantha has a dog that loves to chase flying disks. To keep her disk sperate form other disks, Samantha painted a triangle on it, with one point of the triangle in the center of the disk. As she throws the disk for the dog, what two transformations does the triangle undergo? ...
*February 21, 2008 by alexis*

**6th grade math**

You are putting up a 60 foot long fence in your backyard. According to the manufacturer's instructions, the fence posts should be equally spaced along the length of the yard. List all the possible spacing options if the amount of space between the posts is a whole number of ...
*September 21, 2009 by Carlos*

**physics**

A yo-yo is made of two solid cylindrical disks, each of mass 0.053 kg and diameter 0.073 m, joined by a (concentric) thin solid cylindrical hub of mass 0.0052 kg and diameter 0.012 m. Use conservation of energy to calculate the linear speed of the yo-yo when it reaches the end...
*November 29, 2010 by Sasha*

**SCIENCE**

Two 2.6 kg physical science textbooks on a bookshelf are spaced 0.22 m apart. What is the magnitude of the gravitational attraction between the books?
*February 12, 2012 by Anonymous*

**Physics**

Two small spheres spaced 20.0 centimeters apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10 −21 newtons?
*January 24, 2014 by James*

**Physics**

A parallel-plate capacitor consists of two square plates 18 Cm on a side, spaced 0.50 mm apart with only air between them. What is the maximum energy that can be stored by the capacitor?
*September 12, 2011 by Paige*

**Physics**

Two uncharged metal spheres, spaced 20.0 cm apart, have a capacitance of 28.0 pF. How much work would it take to move 14.0 nC of charge from one sphere to the other? *Please report answer in Joules.
*March 3, 2010 by JOTHEY*

**emily**

What is the potential halfway between two point charges spaced 1 mm apart if q1=10 micro culumbs and q2= -5 micro culumbs
*February 15, 2012 by physics*

**physics HELP MEEE SO CONFUSED**

What is the potential halfway between two point charges spaced 1 mm apart if q1=10 micro culumbs and q2= -5 micro culumbs
*February 15, 2012 by bel *

**math**

In the glass atrium at the entrance to the city aquarium, a designer wants to suspend a 2400-N sculpture of a dolphin. It will be secured by three chains, each of length 4 m. The chains are anchored to the ceiling at three points, spaced 3 m apart, that form an equilateral ...
*April 27, 2012 by justin*

**Physics**

Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.8 kg · m2 and an angular velocity of +6.7 rad/s. Disk B is rotating with an angular velocity of -8.9 rad/s. The two disks are then linked together without the aid of any external torques, so that ...
*November 16, 2012 by Elizabeth*

**Physics**

Two disks are rotating about the same axis. Disk A has a moment of inertia of 4.53 kg·m2 and an angular velocity of +4.55 rad/s. Disk B is rotating with an angular velocity of -6.86 rad/s. The two disks are then linked together without the aid of any external torques, so that ...
*April 1, 2012 by Beth*

**physics**

Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.7 kg · m2 and an angular velocity of +7.3 rad/s. Disk B is rotating with an angular velocity of -9.5 rad/s. The two disks are then linked together without the aid of any external torques, so that ...
*April 18, 2012 by Natasha*

**math**

two computer disks and three notebooks cost $17 however, five computer disks an four notebooks cost $32.find the price of each
*November 5, 2013 by jamaica*

**physics**

Often in physics we won't be able to predict motion of a bunch of objects exactly and so we resort to statistical methods. An example of a statistical approach is the resulting profile of a bunch of disks dropped through a series of pegs. As each disk falls it encounters pegs ...
*June 21, 2013 by anonymous*

**Physics please help **

What is the potential halfway between two point charges spaced 1 mm apart if q1=10 micro coulombs and q2= -5 micro coulombs? Attempt at solution: no idea but need to get this right our homework is graded
*February 15, 2012 by bel *

**physics**

A double-slit interference pattern is created by two narrow slits spaced 0.21 mm apart. The distance between the first and the fifth minimum on a screen 55 cm behind the slits is 6 mm. What is the wavelength of the light used in this experiment? Having trouble setting this up...
*February 23, 2010 by deb*

**physics**

A double-slit interference pattern is created by two narrow slits spaced 0.21 mm apart. The distance between the first and the fifth minimum on a screen 55 cm behind the slits is 6 mm. What is the wavelength of the light used in this experiment? Having trouble setting this up...
*February 23, 2010 by deb*

**potential**

What is the potential halfway between two point charges spaced 1 mm apart if q1=10 micro coulumbs and q2= -5 micro coulumbs?
*February 16, 2012 by anne*

**math**

Numbered disks are placed in a box and one disk is selected at random. There are 6 red disks numbered 1 through 6, and 7 yellow disks numbered 7 through 13. In an experiment a disk is selected, the number and color noted, replaced, and then a second disk is selected. Is this ...
*February 26, 2011 by Anonymous*

**math**

A necklace is 60 centimeters long and the beads on the necklace are 50 milliliters apart. How many beads are on the necklace? Surely you don't mean 50 milliliters. Surely you mean milliMeters. 50 mm = 5 cm. That makes it easy to calculate IF the diameter of the beads are less ...
*September 24, 2006 by Meg*

**statistics**

A manufacturer of computer disks has a historical defective rate of .001. What is the probability that in a batch oof 1000 disks, 2 would be defective?
*January 23, 2011 by Tiffany*

**physics**

A parallel-plate capacitor is formed from two 1.0{\rm cm} \times 1.0{\rm cm} electrodes spaced 2.8{\rm mm} apart. The electric field strength inside the capacitor is 1.0\times10^{6}{N/C}} part a What is the charge (in {\rm nC}) on positive electrode? part b What is the charge...
*June 19, 2013 by holly*

**Math problem**

-A clock is divided equally into 60 units. Each unit forms an angle of 6^0.The hour hand moves 1 of these units for every 12 units that the minute hand moves. it move 2 of these units for every 24 units for the minute hand,ete.At 6 o'clock the hour hand and the minute hand are...
*February 12, 2013 by Mike*

**Physics**

Four 50-\mu {\rm{C}} charges are brought from far apart onto a line where they're spaced at 2.0-{\rm cm} intervals. How much work does it take to assemble this charge distribution?
*February 4, 2010 by Johnny*

**science**

Two diamonds begin a free fall from rest from the same height, 1 s apart. How long after the first diamond begins to fall will the two diamonds be 10 m apart? The part that confuses me is when the diamonds are 1s apart. s=(-1/2)g*t^2 At t=1sec the first one has fallen 4.9m and...
*September 12, 2006 by Jen*

**Algebra**

A carpenter drills 5 equally spaced holes in a 56 3/4" long piece of wood. The two end holes are an equal distance from the center. If each hole is 7 1/2 inches apart, what is the distance from each end of the wood to the nearest ens hole? Please explain Thanks, Mark
*April 15, 2008 by Mark*

**Math**

Billy is riding on a 20 meter diameter Ferris wheel that is making 3 revolutions per minute. What are your linear velocity and your angular velocity? If there are 8 equally spaced seats on the ferris wheel then what is the length of the arc between two adjacent seats?
*May 9, 2014 by Shinku*

**College Physics**

Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in a glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving with a speed vi. After the collision, the orange disk moves along a direction that makes an...
*May 18, 2011 by Josh*

**trig**

an art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with sting. What would be the radian measure of the angle between two adjacent pieces of string, in simplest form?
*February 24, 2011 by ganash*

**Physics**

Two particles with charges +8e and -8e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 7.07 x 10-12 m apart. What is EPEfinal - EPEinitial, which is the change in the electric potential energy?
*July 18, 2013 by Corinne*

**Physics**

Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ω0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfaces eventually brings them...
*November 19, 2011 by Kayla*

**Physics**

When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car's translational kinetic energy to internal energy. If a 1500 kg automobile traveling at 42 m/s comes to a halt after its brakes are applied, how much can the ...
*January 13, 2013 by I'm going to die please help*

**physics**

When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car's translational kinetic energy to internal energy. If a 1280 kg automobile traveling at 30.8 m/s comes to a halt after its brakes are applied, how much can the ...
*March 14, 2013 by Jayde Larson*

**comp. tech**

What is the primary difference between CD-R and CD-RW? A. CD-R disks can only be written on one time. B. CD-R disks are magnetic. C. CD-RW use optical storage technology. D. CD-RW can only record 100 gigabytes. Isn't the primary difference between CD-R and CD-RW is that the CD...
*June 12, 2007 by Eric*

**Thermodynamic Physics**

When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car's translational kinetic energy to internal energy. If a 1500 kg automobile traveling at 42 m/s comes to a halt after its brakes are applied, how much can the ...
*January 13, 2013 by Kristal*

**Physics**

X-radiation from a molybdenum target (0.626 A) is incident on a crystal with adjacent atomic planes spaced 4.00x10(-10) m apart. Find three smallest angles at which intensity maxima occur in the diffracted beam?
*March 21, 2011 by Vanda*

**Physics**

X-radiation from a molybdenum target (0.626 A) is incident on a crystal with adjacent atomic planes spaced 4.00x10(-10) m apart. Find three smallest angles at which intensity maxima occur in the diffracted beam?
*March 22, 2011 by Vanda*

**College Physics 2**

A parallel-plate air capacitor is made from two plates 0.250 m square, spaced 0.70 cm apart. It is connected to a 140 V battery. a) What is the capacitance? C = 7.90×10−11 F b) What is the charge on each plate? Enter your answer as an absolute value of charge. Q = 1.11×...
*February 11, 2013 by Lisa*

**Statistics**

Disk of ploycarbonate plastic form a supplier are anaylzed for scratcha nd shock resistance. the results from 100 disks are summarized below: Shock Resistance high low Scratch high 70 9 resistance low 16 5 Let A denote the even that a disk has high shock resistance, and let B ...
*February 18, 2014 by Ashley*

**Physics help **

Two planets, each with a mass of 4.990E+27 kg, are released from rest some 2.850E+11 m apart. What are their speeds (in m/s) as they crash together? Assume that the planets have a diameter of 1.40E+08 m.
*November 27, 2011 by Anonymous*

**Physics**

Suppose you discover your grandfather's collection of Caruso records from the early part of the century. These disks played at 78.0 revolutions/minute (rpm) and were 9.00in. in diameter. What was the radial acceleration of a point on the rim of such a record as you listened to...
*November 2, 2010 by Carmen*

**Physics**

An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the electric field ...
*February 21, 2014 by Allison *

**Science 8th grade**

There are two clouds of material: one with widely spaced objects with small masses and one with closely packed objects with larger masses. What is more likely to form a solar system, the first or second? Use gravity to explain your answer.
*January 25, 2013 by Anonymous*

**physics**

Two 10-cm-diameter charged rings face each other, 24.0 cm apart. Both rings are charged to + 50.0 . What is the electric field strength nC
*February 25, 2010 by Anonymous*

**Physics**

Problem 19.33 Two light bulbs are 1.0 m apart. Part A - From what distance can these light bulbs be marginally resolved by a small telescope with a 3.0cm -diameter objective lens? Assume that the lens is limited only by diffraction and wavelenght = 600nm . Express your answer...
*November 5, 2011 by Paige*

**science**

two identical 200 gram balls of diameter 3.0 cm are 5.0 cm apart. each carries a charge of 6.5 micro coulombs. one of the balls is realesed. find its acceleration if gravitational force is negligible small?
*August 19, 2011 by Aaron*

**Physics**

The figure shows three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has radius R; ...
*April 15, 2014 by Melinda*

**physics**

Two 173 turn coils, each with a diameter of d = 4.45 m, are placed w = 1.31 m apart, as shown in the figure. A current of 6.99 A is flowing in the wires of both coils; the direction of the current is clockwise for both coils when viewed from the left. What is the magnitude of ...
*April 19, 2011 by ok*

**Physics please help?????**

The figure shows three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has radius R; ...
*April 16, 2014 by Melinda*

**physics**

Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?
*September 7, 2009 by Nick*

**physics**

Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?
*September 7, 2009 by Nick*

**algebra**

If there are 8 red disks numbered 1 through 8, and 6 yellow disks numbered 9 through 14 placed in a box. Find the probability of selecting a red disk numbered 3.
*November 14, 2010 by Kelly*

**Probability**

Erin's CD changer holds 6 compact disks. Justin uses the random function on to play all the songs randomly. If each of the disks on the changer holds 10 songs, what is the probability has favorite song will be first? If I am getting the hang of this, it's 1/2160 Please help.
*March 30, 2008 by Ktowns*

**Science**

Which of the following materials will burn the fastest in open air? A. a log, two feet in diameter B. two logs, each one foot in diameter C. a pile of small splinters made from a two-foot diameter log D. Both logs and the splinters will burn at the same rate.
*March 8, 2012 by Samantha*

**Science**

Which of the following materials will burn the fastest in open air? A. a log, two feet in diameter B. two logs, each one foot in diameter C. a pile of small splinters made from a two-foot diameter log D. Both logs and the splinters will burn at the same rate.
*March 12, 2012 by Samantha*

**Physics**

Observing electron interference through an ordinary macroscopic two-slit experiment would be extremely difficult and would require very slowly moving electrons.Â (Slow for an electron means < 10^3 m/s.) Â How slowly would electrons have to move through slits spaced 6.53...
*December 3, 2012 by Alphonse*

**Geometry**

A circular flower bed is sectioned off. The arc intercepted by the 120 degree central angle is to be bordered with marigolds. The garden has a diameter of 63 inches. Circumference = Pi * diameter, Pi = 22/7. If you plant the marigolds about eight inches apart what is the least...
*November 28, 2011 by Tristan*

**algebra**

A pipe manufacturer makes pipes of four different sizes. The diameter of each pipe is two times the diameter of the pipe of the next smaller size. The diameter of the biggest pipe is 16 centimeters. What is the diameter of the pipe of the smallest size?
*October 21, 2013 by Anonymous*

**algebra**

A pipe manufacturer makes pipes of four different sizes. The diameter of each pipe is two times the diameter of the pipe of the next smaller size. The diameter of the biggest pipe is 16 centimeters. What is the diameter of the pipe of the smallest size?
*October 21, 2013 by cv*

**Pre-Calc **

The cable in the center portion of a bridge is supported by five pillars to form a parabola. The center support is 10 ft high, the tallest supports are 210 feet high, and the distance between the two tallest supports is 400 ft. Find the height of the two supports equally ...
*December 3, 2012 by Tori*

**pjysics**

A capacitor that has 10 cm diameter plates, 0.1mm apart, is charged at 100 V and the battery removed afterwards. What are the charges on each of the platesimmediately after charging the capacitor? What is the voltage if the distance between plates is increased to 0.5 mm? How ...
*April 22, 2014 by tj*

**math**

What is the scale on a map that shows two cities that are 400 mi apart as 2.5 in apart?
*December 8, 2011 by JOSH*

**Physics**

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC.
*September 3, 2010 by David D.*

**physics**

Two positive charges of 12 µC and 8 µC respectively are 10 cm apart. Find the work done in bringing them 4 cm closer, so that, they are 6 cm apart..
*March 30, 2014 by shashank*

**Physics**

Two 18.0 cm diameter charged rings face each other, 22.0 cm apart. The left ring is charged to + 40.0 nC and the right ring is charged to + 15.0 nC. What is the force on a + 0.50 nC charge placed at the mid point?
*February 10, 2011 by Please Help!!!!!!!!!!!*

**5th grade math **

The diameter of a penny is 3/4 in. How many pennies are needed to form a row 12in. long? Also to find the circumference of a circle do you use the radius or diameter x 3.14?
*December 7, 2010 by jill *

**contemporary Math**

If there are 2 red disks numbered 1 through 2, and 6 yellow disks numbered 3 through 8, find the probability of selecting a red disk, givent that an odd-numbered disk is selected?
*November 17, 2010 by Savannah*

**physics**

The centers of two helium nuclei are held 2.5*10^-12 m apart, and are then released. Calculate the speed of each necleus when they are 0.75 m apart.
*February 11, 2010 by Lise*

**Math**

Hi. This is my question: An art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with string. What would be the radian measure of the angle between two adjacent pieces of string, in simplest form? ...
*April 20, 2009 by Ashfia*

**math**

juan entered a bike race in which he was to ride 45 miles stopping at certain intervals during the race to cheek in with the scores. he cheeked in 9 times befor he cross to the finish line .if the intervals were equally spaced throught out the race , how far apart were they?
*January 28, 2011 by cindy*

**physics**

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
*September 26, 2010 by Anonymous*

**physics**

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
*September 26, 2010 by Anonymous*

**science**

How much work is done by an applied force that moves two charges of +7.8 µC that are initially very far apart to a distance of 3.8 cm apart
*January 31, 2012 by Andrew*

**Physics**

The essential part of the Hot Wheels speed booster is made of two fast spinning, rubberized disks of radius r=0.048 m each. The toy car entering the booster is in direct contact with both wheels, which send it away after brief encounter with it. When the speed booster is set ...
*November 1, 2012 by Emily*

**math**

two cities are 1,900miles apart. a map uses a scale of 3cm=500 miles. how many centimeters apart are the two cities on the map?
*May 15, 2012 by Taylor*

**MUSIC **

for my music homework i have got these words Polyphonic homophonic thick texture thin texture which i need to match up with these sentences Single melodic line - i think this matches up with Polyphonic. a few parts spaced apart chordal parts that move together two or more ...
*May 1, 2010 by LOOBY *

**physics**

Two charged spheres are 18.0 cm apart. They are moved, and the force on each of them is found to have been doubled. How far apart are they now? ______cm
*March 22, 2010 by Dar*

**physics**

two stones are dropped simultaneously into a calm pool of water. The crests of the resulting waves form equally spaced concentric cicles, as shown in the figures. The waves interact with each other to create certain interference patterns. explain why the red dots lie on an ...
*June 23, 2013 by Anonymous*

**Physics**

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC. What is the force on a 1.2 nC charge placed at the midpoint? I have already calculated the electric field between the two rings to be ...
*September 3, 2010 by David D.*

**Astronomy**

Which one supports the solar nebula theory of the origin of the solar system? a.Disks are rare around young stars. b.Disks are common around young stars. c.The sun is the least massive object in the solar system. d.Planets are round.
*November 23, 2010 by Stephanie*

**10th grade Math B**

Hi. This is my question: An art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with string. What would be the radian measure of the angle between two adjacent pieces of string, in simplest form? ...
*April 20, 2009 by Ashfia*

**physics**

73. A mobile is formed by supporting four metal butterflies of equal mass m from a string of length L. The points of support are evenly spaced a distance apart as shown in Figure P5.73. The string forms an angle 1 with the ceiling at each end point. The center section of ...
*October 7, 2012 by audree*

**Physics**

A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. It takes 2.90 s for the boat to travel from its highest point to its lowest, a total distance of 0.640 m. The fisherman sees that the wave crests are spaced 7.60 m...
*November 20, 2007 by Christine*

**diameter**

if the sum of the diameters of two circles is 28 inches one circle has a diameter that is 8 inches longer than the diameter of the other what are the diameters of the two circles
*January 24, 2011 by seth*

**PHYSICS**

Problem 19.33 Two light bulbs are 1.5 m apart. From what distance can these light bulbs be marginally resolved by a small telescope with a 4.0 cm-diameter objective lens? Assume that the lens is limited only by diffraction and lambda = 600 nm.
*February 12, 2010 by JOTHEY*

**Math**

let AB and CD be perpendicular diameters of a circle. two chords AE and AF, which lie in the two different semicircles determined by the diameter AB are cut by the diameter CD in the points X and Y respectively. prove that angle EXF = angle EYF
*September 19, 2012 by Jun*

**math**

2/3x+5/3x=14 7\6x=14 then multiply a4 my 6\7 what is the circumferenceof a satellite dish which has a diameter of 21m you do 2 times pie and radius since you have the diameter then its 21 times pie . for futher info if your trying to find the area then you have to put it in ...
*April 24, 2007 by Anonymous*

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