Thursday

January 19, 2017
**Physics**

A circuit is composed of a capacitor C= 3 micro F, two resistors both with resistance 69 Ohm, an inductor 6.00e-2 H, a switch , and a battery 25 V. The internal resistance of the battery can be ignored . Reminder: The " L=x.xxenn H" notation means " L=x.xx X 10...

*Saturday, June 15, 2013 by P*

**Physics**

A circuit is composed of a capacitor C=2 μF, two resistors both with resistance R=11 Ohm, an inductor L=4.00e-2 H, a switch S, and a battery V=5 V. The internal resistance of the battery can be ignored . Reminder: The "L=x.xxenn H" notation means "L=x.xx&...

*Saturday, June 15, 2013 by Annoyingmous*

**Physics**

Two charged particles initially are traveling in the positive x direction, each with the same speed v, and enter a non-zero magnetic field at the origin O. The magnetic field for x>0 is constant, uniform and points out of the page. In the magnetic field, their trajectories ...

*Friday, June 14, 2013 by Annoyingmous*

**math**

A game is played by drawing 4 card from an ordinary deck and replacing each card after it is drawn.find the probability that at least 1 king is drawn

*Friday, June 14, 2013 by nurul*

**math**

A box contains 4 red pens, 5 blue pens, and 9 green pens. Two pens are drawn out of the box without replacement. What is the probability of drawing a red pen on the first draw and the same color pen on the second draw?

*Tuesday, June 11, 2013 by mary*

**Math**

A jar contains 2 orange balls, 5 black balls, and 3 pink balls. Event A = drawing a black ball on the first draw Event B = drawing a pink ball on the second draw If two balls are drawn from the jar, one after the other without replacement, what is P(A and B) expressed in ...

*Saturday, June 8, 2013 by bubbie*

**Social Studies (Ms. Sue)**

How did women's roles expand near the turn of the century? My answer: Women's roles expanded as industrial society was drawing more and more women out of the home and off of the farm and into the worlds of work and public life.

*Tuesday, June 4, 2013 by Anonymous*

**Math help!**

A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble? Is the answer 1/9?

*Thursday, May 30, 2013 by Jacob*

**Math**

A standard deck of cards has four different suits:hearts ,diamonds ,spades, and clubs.Each suit has 13 cards, making a total of 52.Two cards are drawn without replacement. What is the probability of drawing first a heart, and then a spade?

*Wednesday, May 29, 2013 by Christina*

**Physics**

A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 60 s per increment, and the scale for the velocity axis is 270 m/s per ...

*Wednesday, May 29, 2013 by James*

**English**

Homework Help: English Posted by rfvv on Wednesday, May 22, 2013 at 8:22pm. 1. There are works of art on the buletinboard at the back. 2. There are five works of art on the bulletinboard in the back. 3. There are many tables and chairs in the English classroom. 4. There is a ...

*Wednesday, May 22, 2013 by rfvv*

**PHI 103**

construct three different arguments that display distinct fallacies. Give an explanation of why each makes a mistake in drawing the conclusion it does.

*Thursday, May 16, 2013 by lisa*

**phy**

A popular brand of pressure washer claims to deliver 330 litres per hour of water at a pressure of 80 bar, drawing 1400 W of electrical power in the process. Pressure washers of this type consist of an electric motor that drives a small compressor to pressurize water fed into ...

*Saturday, May 11, 2013 by Fred*

**Math**

Suppose that you randomly draw 20 cards from a standard deck of 52 cards with replacement. What is the probability of drawing at least 7 hearts?

*Thursday, May 9, 2013 by Anonymous*

**Math (Combinatorics)**

A lottery ball drawing machine has 50 balls, each labeled with a distinct integer from 1 to 50. Every Sunday, four different balls are drawn to determine the winning numbers. You have last Sunday's ticket with the numbers {3,7,12,15}. You missed the drawing, but heard that...

*Monday, May 6, 2013 by Shin*

**Please help! im so confused!**

You draw two cards from a well-shuffled deck of 52 cards. After you draw the first card, you do not replace it in the deck. The probability of drawing the ace of diamonds on your first draw is 1/52. What is the probability of P(get king of clubs on second draw | get ace of ...

*Saturday, May 4, 2013 by algebra 2*

**Probability**

You draw two cards from a well-shuffled deck of 52 cards. After you draw the first card, you do not replace it in the deck. The probability of drawing the ace of diamonds on your first draw is 1/52. What is the probability of P(get king of clubs on second draw | get ace of ...

*Saturday, May 4, 2013 by Tifini*

**math**

Jim draws a sketch of his bedroom wall to scale. The actual wall is 10 feet long and 8 feet high. The drawing is one- sixth the length and width of the actual wall. What are the dimensions of the drawing in inches?

*Wednesday, May 1, 2013 by jason*

**accounting**

During the month of December 20-1, TJ's Specialty Shop engaged in the following transactions: Dec. 1 Sold merchandise on account to Anne Clark, $2,000, plus tax of $100. Sale no. 637. 2 Issued check no. 806 to Owen Enterprises in payment of December 1 balance of $1,600, ...

*Monday, April 29, 2013 by cas*

**Statistics**

A school is running a raffle. There are 100 tickets, of which 3 are winners. You can assume that tickets are sold by drawing at random without replacement from the available tickets. Teacher X buys 10 raffle tickets, and so does Teacher Y. Find the chance that one of those two...

*Thursday, April 25, 2013 by XYZ*

**Math**

Tammy drew a scale drawing of a house. The scale she used was 14 millimeters = 5 meters. The actual length of the garage is 15 meters. How long is the garage in the drawing?

*Thursday, April 25, 2013 by Jasmine*

**math**

IN a scale drawing each side of a pentagon is 1.9 cm long. what is the perimeter of the actual object when the scale drawing is 1 cm=6.5

*Wednesday, April 24, 2013 by Anonymous*

**physics**

The drawing shows three energy levels of a laser that are involved in the lasing action. These levels are analogous to the levels in the Ne atoms of a He-Ne laser. The E2 level is a metastable level, and the E0 level is the ground state. The difference between the energy ...

*Tuesday, April 23, 2013 by PLease HELP*

**Algebra**

As a promotion, a store draws the name of a customers each week. The prize is a coupon for the store. If winner is not present at drawing, he cannnot claim the prize and the amount of the coupon increases for the next weeks drawing. the function f(x)= 20(1.2)to the x power, ...

*Sunday, April 21, 2013 by Dylan*

**Math (Statistics)**

Two Cards are drawn without replacement from a deck of 52 cards. What are the odds in favor of drawing two honour cards (A,K,Q,J,10)?

*Sunday, April 21, 2013 by Josh*

**Physics**

A mass of 0.475 kg, on a frictionless table, is attached to a string which passes through a hole in the table. The hole is at the center of a horizontal circle in which the mass moves with constant speed. The radius of the circle is 0.510 m and the speed of the mass is 13.0 m/...

*Thursday, April 18, 2013 by CPhy*

**Math**

A floor plan has a scale of 1/4 in : 5 ft. Find the length on the drawing for an actual length of 60 ft.

*Wednesday, April 17, 2013 by Jennifer Roberts*

**physics**

A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. The crest of the second hill is circular, with a radius of 39.6 m. Neglect friction and air resistance. What must be the height h of the first hill ...

*Monday, April 15, 2013 by Anonymous*

**Chemistry**

What volume of H2(g), stored at 26Â°C at a pressure of 141 atm, would be needed to run an electric motor drawing a current of 8.4 A for 4.8 h?

*Sunday, April 14, 2013 by Joe*

**Spanish**

4. Fill in the blank with a correct expression with tener to express the following. She is hot. Ella ________. Answer: ella tienen calor 5. Fill in the blank with a correct expression with tener to express the following. She is cold. Ella ________. Answer: ella tienen fr&...

*Friday, April 12, 2013 by Cassie*

**statistics**

A pouch contains 59 green beads 78 red beads an 50 yellow beads how many blue beads should be added so that the probability of drawing a red bead is one third

*Thursday, April 11, 2013 by morris*

**English**

choose the phrase in which commas are used correctly to complete the sentence. I donâ€™t know very much about _________. A.painting sculpture or drawing B.painting, sculpture, or drawing I think it is B...?

*Thursday, April 11, 2013 by Cassie*

**physics**

The auroral zone is defined by the last field line from the Earth that returns to the Earth. If the field of the earth extends no further than 10RE in the sunward direction, at what angle (in degrees) in the picture above does the last field line that returns to the earth on ...

*Wednesday, April 10, 2013 by Ruben *

**Physics**

When a converging lens is used in a camera (as in the first drawing), the film must be placed at a distance of 0.240 m from the lens to record an image of an object that is 4.30 m from the lens. The same lens is then used in a projector (as in the second drawing), with the ...

*Wednesday, April 10, 2013 by Tim*

**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 ...

*Wednesday, April 10, 2013 by Tim*

**Chemistry **

Okay, I feel like this question should be really easy because it's a multiple choice question but how do you figure it out?? I'm completely drawing a blank. Consider the following equilibrium N2O4(g) <-> 2NO2(g) Kc = 4.8E-3 Which set of concentrations represents ...

*Tuesday, April 9, 2013 by a Canadian*

**Math**

I think this is geometry: There is a small box with a black frame around it. Inside the box, at the bottom, is an 8. Inside the box, to the right, is a 2. It looks like they are showing Length & Height. On the outside of the box, under the 8, there is a 10. To the right, ...

*Monday, April 8, 2013 by Sandy*

**Physics**

A long, narrow rectangular loop of wire is moving toward the bottom of the page with a speed of 0.021 m/s (see the drawing). The loop is leaving a region in which a 2.7 T magnetic field exists; the magnetic field outside this region is zero. During a time of 3.0 s, what is the...

*Monday, April 8, 2013 by Anonymous*

**Physics**

A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.12 m. The normal to the plane of the loop is parallel to a constant magnetic field ( = 0Â°) of magnitude 0.85 T. What is the change Ã„&...

*Monday, April 8, 2013 by Don*

**Physics**

Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 ÂµC, q2 = 19.2 ÂµC, and q3 = -16.1 ÂµC.)

*Sunday, April 7, 2013 by Emilie*

**Physics**

The equation describing the (r, \theta ) coordinates of points along a single field line of a magnetic dipole is r=R_0 \sin ^2(\theta ) where \theta =0 is in the direction of the dipole moment and R_0 is a constant which is different for each field line. The question requires...

*Saturday, April 6, 2013 by Phy*

**Physics **

Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 ÂµC, q2 = 19.2 ÂµC, and q3 = -16.1 ÂµC.)

*Friday, April 5, 2013 by Emilie*

**Physics**

A long, narrow rectangular loop of wire is moving toward the bottom of the page with a speed of 0.021 m/s (see the drawing). The loop is leaving a region in which a 2.7 T magnetic field exists; the magnetic field outside this region is zero. During a time of 3.0 s, what is the...

*Thursday, April 4, 2013 by Anonymous*

**physics**

A copper cube, 0.31 m on a side, is subjected to two shearing forces, each which has a magnitude F = 6.40 106 N (see the drawing). Find the angle θ (in degrees), which is one measure of how the shape of the block has been altered by shear deformation.

*Wednesday, April 3, 2013 by Dee*

**math**

A rectangular room has an area of 120ft squared. Marge drew a scale drawing of the pool using the scale 1.5cm=2ft. What was the area of the scale drawing? a) 213.3cm2 b) 67.5cm2 c)53.3cm2 d)1.5cm2 I don't think any of the choices match the answer (90cm2)?

*Tuesday, April 2, 2013 by pitigoiu*

**math**

a bag of marbles contains 5 green 4 red and 6 yellow what is la probability of drawing 2 yellow with replacement.

*Monday, April 1, 2013 by juan*

**Physics**

The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as massive as an oxygen atom. Using this information and the data provided in the drawing, find (a) the x coordinate and (b) the y coordinate of the center of...

*Monday, April 1, 2013 by Dee*

**Quantitative Analysis**

Using Equations Word-process the following five equations: Using Drawing Tool

*Saturday, March 30, 2013 by Helen*

**Statistics**

A standard deck of 52 playing cards is composed of 4 suits. Each mix contains 13 cards. Jacks, Queens, and Kings are considered face cards. Assume three cards are selected without replacement. Calculate the probability of drawing two hearts, followed by a spade.

*Tuesday, March 26, 2013 by Bill*

**Physics**

The power radiated by the sun is 3.90 1026 W. The earth orbits the sun in a nearly circular orbit of radius 1.50 1011 m. The earth's axis of rotation is tilted by 27Â° relative to the plane of the orbit (see the drawing), so sunlight does not strike the equator ...

*Tuesday, March 26, 2013 by Elizabeth*

**physics**

A copper rod of length 0.83 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k = 73 N/m. A magnetic field with a strength of 0.17 T is oriented perpendicular to the ...

*Monday, March 25, 2013 by VictorD2*

**Physics!**

The steel I-beam in the drawing has a weight of 9.03 Ã— 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends? With both angles being 70 degrees

*Friday, March 22, 2013 by Christina*

**Geometry - Circles and tangents**

Two circles of radius 1 are externally tangent at Q . Let PQ and QR be diameters of the two circles. From P a tangent is drawn to the circle with diameter QR , and from R a parallel tangent is drawn to the circle with diameter PQ . Find the distance between these two tangent ...

*Thursday, March 21, 2013 by Knights*

**Physics**

A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 24.5Â° above the horizontal, and the strap is inclined 63.0Â° above the horizontal. The center of gravity of ...

*Thursday, March 21, 2013 by A*

**physics**

A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 24.5Â° above the horizontal, and the strap is inclined 63.0Â° above the horizontal. The center of gravity of ...

*Thursday, March 21, 2013 by A*

**Math**

Find the sample space. a Bag contains 4 marbles: one each of red, blue, green and violet. Two marbles are drawn from the bag. assume that the first marble is not put in the bag before drawing the second marblle

*Thursday, March 21, 2013 by Nangoyi*

**Physics**

A half-atwood machine is constructed, as shown in the drawing below. The table is NOT frictionless, M1 is 50 grams, and M2 is 30 grams. Mass M2 descends 32 cm in 18 seconds. Find the tension in the wire.

*Thursday, March 21, 2013 by Dee*

**PHYSICS HELP!**

The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B. q1= 1.5e-9...

*Wednesday, March 20, 2013 by Sarah*

**Physics**

The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B. q1= 1.5e-9...

*Wednesday, March 20, 2013 by Sarah*

**Math **

On a single draw from a shuffled deck of 52 cardsm find the probability in favor of drawing a club and a jack.

*Tuesday, March 19, 2013 by LaChellle*

**Physics**

Three Point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. As the drawing shows(a) The charge at any one corner experiences forces from the charges at the other corners. Do the individual ...

*Tuesday, March 19, 2013 by Jayflord*

**Physics**

Three Point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. As the drawing shows(a) The charge at any one corner experiences forces from the charges at the other corners. Do the individual ...

*Tuesday, March 19, 2013 by Jayflord*

**geometry**

Carlos want to show a rectangle in his drawing. What dotes he have to do to the drawing below to make the rectangle a closed shape?

*Monday, March 18, 2013 by Ms.Vargas*

**math**

a bag contains lettered tiles, two for each letter of the alphabet. What is the probability of drawing a tile with the letter A? express the probability ratio as a fraction and as a decimal rounded to the nearest hundredth

*Sunday, March 17, 2013 by jill*

**French review**

Can someone please check if all of this is correct in french? Is everything conjugated correctly? Its in the imparfait. Quand j'etais jeune, J'ai la cheveux blonds. J'ai les yeux bleus. J'etais un petit diable. J'ai les cheveux courts. J'etais grand. J...

*Friday, March 15, 2013 by Bryce*

**Math**

What is an easy drawing that has a lot of circles in it.

*Thursday, March 14, 2013 by Julie*

**Math**

An architect is drawing a scale model of a new mall. The real mall will be 1800 feet long. The scale the architect is using is 1 inch is equal to 100 feet. How long will the model be?

*Monday, March 11, 2013 by Brittany*

**maths-mensuration**

The boy having a gold coin of diameter 2cm and thickess 2mm to a goldsmith for melting and drawing into a wire of diameter 1mm . the gold smith gave back a wire of gold of length 76cm with diameter 1mm. if the wastage allowed in melting could be a maximum of 5% of the total ...

*Sunday, March 10, 2013 by anoynomous*

**physics**

The position vector r of a particle moving in the xy plane is r=2ti+2sin[(pi/4)t]j , with is in meters and t in seconds. (a) Calculate the x and y components of the particle's position at , and 4.0 s and sketch the particle's path in the plane for the interval . (b) ...

*Sunday, March 10, 2013 by Anonymous*

**math**

kevin drew a scale drawing of his living room,The actual room is 16 feet long.If the room is 12 inches long in the drawing,what is the scale of the drawing?

*Wednesday, March 6, 2013 by bob*

**physics**

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.56 m, and x = 7.0 m.) Using ...

*Tuesday, March 5, 2013 by Anonymous*

**physics **

The drawing shows a ray of light traveling through three materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. A ray of light strikes the aâ€“b interface at a 50...

*Tuesday, March 5, 2013 by Anonymous*

**probability**

the probability of drawing a club from a deck of card is 1/4 what are the odds in favor of drawing a club from an ordinary deck of cards?

*Sunday, March 3, 2013 by Andrew*

**Physics**

A string has a linear density of 6.2 x 10-3 kg/m and is under a tension of 250 N. The string is 1.2 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c) frequency of the traveling ...

*Sunday, March 3, 2013 by Tim*

**Physics**

A string has a linear density of 6.2 x 10-3 kg/m and is under a tension of 250 N. The string is 1.2 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c) frequency of the traveling ...

*Sunday, March 3, 2013 by Tim*

**math**

what is the probability of drawing 5 queens from a standard deck of cards?

*Tuesday, February 26, 2013 by mary*

**Physics **

The drawing shows a skateboarder moving at 5.40 m/s along a horizontal section of a track that is slanted upward by 48.9 Â° above the horizontal at its end, which is 0.582 m above the ground. When she leaves the track, she follows the characteristic path of ...

*Tuesday, February 26, 2013 by Randy*

**Physics**

The wire in the drawing carries a current of 13 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 28 A. Use Ampere's law to find the magnitude of the magnetic field at a distance of r = 0.76 m from the wires ...

*Monday, February 25, 2013 by Anonymous*

**Physics**

Find the current in the 10.0-Ã™ resistor in the drawing (V1 = 23.0 V and R1 = 21.0 Ã™). A

*Sunday, February 24, 2013 by Anonymous*

**math**

I dontunderstand this question can you please help me. "Explain why 3 separate lines can all be parallel to each other,but 3 separate lines cannot all be perpendicular to each other. Use a drawing to show your answer."

*Sunday, February 24, 2013 by nicole 4th grade*

**Physics**

In the drawing below, R1 has a resistance of 6.2 Ã™ and R2 has a resistance of 2.6-Ã™. Determine the current (magnitude and direction) in the 6.2 and 2.6-Ã™ resistors in the drawing.

*Sunday, February 24, 2013 by Don*

**Math**

A Scale Drawing of a rectangular field is 10 centimeters by 8.5 centimeters. If the actual field has dimensions of 40 meters by 34 meters, which could be the scale used for the drawing?

*Sunday, February 24, 2013 by Jikeria*

**physics**

The drawing below shows a person who, starting from rest at the top of a cliff, swings down at the end of a rope, releases it, and falls into the water below. There are two paths by which the person can enter the water. Suppose he enters the water at a speed of 18.0 m/s via ...

*Friday, February 22, 2013 by A*

**Physics**

Determine the voltage across the 5.0-Ã™ resistor in the drawing.

*Monday, February 18, 2013 by Anonymous*

**scale drawing**

1cm^2 ----

*Monday, February 18, 2013 by samuel*

**Physics**

The drawing shows six point charges arranged in a rectangle. The value of q is 9.27 ÂµC, and the distance d is 0.17 m. Find the total electric potential at location P, which is at the center of the rectangle.

*Monday, February 18, 2013 by Donald*

**physics**

the ends of a light string are tied to two hooks A and Bin are ceiling which 100 cm apart horizontally,so that the length of string of string between hooks is 140 cm.A 650 g of mass is then attached by a second length of string to a point C on the first.80 cm from A,and hanged...

*Sunday, February 17, 2013 by Anonymous*

**english**

theday i didnot win a price in drawing competition

*Saturday, February 16, 2013 by Anonymous*

**physics**

Each of the four circuits in the drawing consists of a single resistor whose resistance is either R or 2R, and a single battery whose voltage is either V or 2V. The unit of voltage in each circuit is V = 10 V and the unit of resistance is R = 8 Ω. Determine (a) the power ...

*Thursday, February 14, 2013 by Anonymous*

**math-probability**

A state lottery has a daily drawing to form a four-digit number. The digits 1 through 9 are randomly selected for each of the four digits. For each selection any one of the digits 1 through 9 are possible. What is the probability to the nearest hundredth of the four-digit ...

*Wednesday, February 13, 2013 by Tina*

**Physics**

Two horizontal forces, F1-> and F2-> , are acting on a box, but only F1->is shown in the drawing. F2-> can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that F1-> = +8...

*Wednesday, February 13, 2013 by Randy*

**Algebra**

On a 30 day calendar which begins on a Wednesday and ends on a Thursday, what is the probability in a random drawing that the date would be a Monday?

*Tuesday, February 12, 2013 by Laura*

**Physics**

A car travells 20 km due north and then on a bearing of 90 degrees for 12km. Use a scale drawing.

*Monday, February 11, 2013 by Kuhle*

**physics**

A string has a linear density of 8.1 x 10-3 kg/m and is under a tension of 200 N. The string is 2.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c) frequency of the traveling ...

*Monday, February 11, 2013 by natasha*

**Geometry**

URGENT PLEASE HELP please help me understand how to draw a net, am i supposed to memorize these or is there a method for drawing nets for different shapes.

*Sunday, February 10, 2013 by haley*

**Physics**

The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B

*Sunday, February 10, 2013 by Anonymous*

**physics- vertical circular motion**

For the normal force in the drawing to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 2.06 m and that the driver goes past point 1 at ...

*Saturday, February 9, 2013 by Anonymous*

**physics**

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction Ã¨ of the resultant vector

*Friday, February 8, 2013 by james*

**physics**

The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of earth = 5.98 1024 kg, ...

*Thursday, February 7, 2013 by Dee*

**chemistry (please someone help)**

lewis acid or lewis base? then draw the product. H3C^+ :NH3 ----> I'm assuming H3C is the acid and :NH3 is the base? As for drawing out the product I don't know what to do.

*Thursday, February 7, 2013 by Maura*