Saturday

July 4, 2015

July 4, 2015

**Physics Classical Mechanics**

A uniform steel beam of mass m1= 300.0 kg is held up by a steel cable that is connected to the beam a distance L= 5.0 m from the wall, at an angle θ= 40.0∘ as shown in the sketch. The beam is bolted to the wall with an unknown force F⃗ exerted by the wall on ...
*Tuesday, November 26, 2013 by A*

**Algebra 1 **

a scale drawing for a new city library shows a rectangular children's reading room with a length of 5 1/4 inches and a width of 3 1/2 inches. The scale on the is 1 inch:4feet . What will be the actual length and with of the room when the library is built. Can someone ...
*Monday, November 25, 2013 by Jynessa HELP*

**pre-alg **

What is the scale that you will use for your scale drawing? I'm not understanding the question? is it asking what number i will use? or is it asking what type of graph type deal I will use? (My scale was 115 x 160)
*Monday, November 25, 2013 by Pretty Reckless*

**math**

the scale drawing of a model is 3 inches which equals 10 feet what is the actual size for 15 inches
*Monday, November 25, 2013 by jasmine*

**reading (Ms. Sue or Writeacher)**

Those members will create a "page" in a characterization book entitled "Two Kinds." Each page will present a character, character terms specific to this character, a graphic image and text suppot that "proves" each character term that has been ...
*Sunday, November 24, 2013 by anonymous*

**Physics**

A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 98-N picture is then hung from the center of the wire, as the drawing illustrates, so the ends of the ...
*Saturday, November 23, 2013 by Samantha*

**math**

I do not understand how the odds of drawing a queen from a deck of cards is 3to1
*Saturday, November 23, 2013 by angela*

**Check my answers 6 ?s- Physics**

What is a free body diagram? (Points : 1) a drawing of an object in free fall a diagram showing all the forces acting on an object but not its surroundings <-- a diagram showing the shape of an object and the forces that act on it a diagram of an object that is free to ...
*Tuesday, November 19, 2013 by Gianna*

**physics**

A wrecking ball (weight = 4880 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3520 N. As the drawing below shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and the horizontal is θ1...
*Sunday, November 17, 2013 by ERsa*

**math**

an autmobile is 16 feet long the scale drawing is 1 inch:6 inches my scale factor answer is 96in am i right
*Saturday, November 16, 2013 by kylee*

**Physical education**

we have a lithium atom (atomic mass m = 6 amu) connected to two very much more massive atoms, as illustrated in the drawing below. We can pretend that the massive atoms don¡¯t move. The spring constants k1 and k2 are 73 N/m and 27 N/m, respectively. What is the ...
*Tuesday, November 12, 2013 by Anonymous*

**phyics**

A 11.7-kg uniform board is wedged into a corner and held by a spring at a 50.0° angle, as the drawing shows. The spring has a spring constant of 230 N/m and is parallel to the floor. Find the amount by which the spring is stretched from its unstrained length.
*Tuesday, November 12, 2013 by MATT*

**phyics**

The wheels, axle, and handles of a wheelbarrow weigh W = 53 N. The load chamber and its contents weigh WL = 547 N. The drawing shows these two forces in two different wheelbarrow designs. To support the wheelbarrow in equilibrium, the man’s hands apply a force to the ...
*Tuesday, November 12, 2013 by LLYOD BLUE*

**physics**

Water is flowing down through the pipe shown in the drawing. Point A is 0.410 m higher than B. The speed of the water at A and B are vA = 5.00 m/s and vB = 3.80 m/s. Determine the difference PB - PA in pressures between B and A. The density of water is 1.00x10^3 kg/m3.
*Thursday, November 7, 2013 by john*

**Physics**

he weight of the block in the drawing is 77.0 N. The coefficient of static friction between the block and the vertical wall is 0.490. (a) What minimum magnitude of the force is required to prevent the block from sliding down the wall? (Hint: The static frictional force exerted...
*Thursday, November 7, 2013 by Samantha*

**Math-Trigonometry**

Show that if A, B, and C are the angles of an acute triangle, then tan A + tan B + tan C = tan A tan B tan C. I tried drawing perpendiculars and stuff but it doesn't seem to work? For me, the trig identities don't seem to plug in as well. Help is appreciated, thanks.
*Wednesday, November 6, 2013 by Sam*

**physics**

A girl is skipping stones across a lake. One of the stones accidentally ricochets off a toy boat that is initially at rest in the water (see the drawing below). The 0.058-kg stone strikes the boat at a velocity of 15 m/s, 15° below due east, and ricochets off at a velocity...
*Monday, November 4, 2013 by Donna*

**Physics**

The drawing shows two crates that are connected by a steel (Young's modulus 2.0 x 1011 N/m2) wire that passes over a pulley. The unstretched length of the wire is 1.8 m, and its cross-sectional area is 1.4 x 10-5 m2. The pulley is frictionless and massless. When the crates...
*Saturday, October 26, 2013 by Taylor*

**inf103**

Give an explanation of why each makes a mistake in drawing the conclusion it does. Review your classmates’ examples and see if they, in fact, commit the fallacy identified.
*Thursday, October 17, 2013 by lovelle*

**Physics**

A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 471 N walk on the overhanging part of the plank before it just begins to tip?
*Wednesday, October 16, 2013 by Cheech*

**physics**

In an automatic clothes dryer, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.36 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an angle of è ...
*Friday, October 11, 2013 by Donna*

**Physics**

The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground is 0.94, determine ...
*Friday, October 11, 2013 by Donna*

**physics**

The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the wire exerts two forces vector T and vector T ' on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 24.0...
*Friday, October 11, 2013 by Donna*

**Physics**

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 59000 N. The lift force vector L generated by the rotating blade makes an angle of 21.0° with respect to the vertical.
*Friday, October 11, 2013 by Donna*

**statistics**

6. Out of eight numbers, what is the probability of drawing a two on the first draw and a three on the second draw using sampling with replacement?
*Thursday, October 10, 2013 by shanice*

**Math**

A wire that weighs 9 ounces per meter is stretched from point D to point B. Another wire is stretched from point B to point A that weighs 8 ounces per meter. If you know the total weight of the two wires is 197 ounces, how far is it from point B to C? *On my homework, there is...
*Wednesday, October 9, 2013 by Anonymous*

**physics**

The drawing shows an exaggerated view of a rifle that has been "sighted in" for a 91.4-meter target. If the muzzle speed of the bullet is vo=427m/s, what are the two possible angles between the rifle barrel and the horizontal such that the bullet will hit the target...
*Sunday, October 6, 2013 by Anji*

**Physics**

A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? In the image the two pieces are going off in a right ...
*Sunday, October 6, 2013 by Connor*

**Physics**

A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? In the image the two pieces are going off in a right ...
*Saturday, October 5, 2013 by Cheech*

**Physics**

A "swing" ride at a carnival consists of chairs that are swung in a circle by 19.8 m cables attached to a vertical rotating pole, as the drawing shows. Suppose the total mass of a chair and its occupant is 144 kg. (a) Determine the tension in the cable attached to ...
*Thursday, October 3, 2013 by Tyler*

**Physics**

Two identical cars (m = 1350 kg) are traveling at the same speed of 28.1 m/s. They are moving in the directions shown in the drawing. What is the magnitude of the total momentum of the two cars?
*Tuesday, October 1, 2013 by Megan*

**physics**

The drawing shows a 25.1-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, 1 and 2, are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the floor is μk = 0...
*Tuesday, October 1, 2013 by help please*

**math**

The probability of rolling an even number of a die and drawing a red marble from a bag containing 3 red marble and 5 green marbles must be expressed as a reduced fraction of the form a/b what is the value of a and b?
*Tuesday, October 1, 2013 by sam*

**Geometry**

Sarah is making a scale drawing of a painting that is 48 in. wide by 120 in tall. her paper is 12 in. wide and 24 in. tall. She decides to use the scale 1 in. = 4in. is this a reasonable scale?
*Monday, September 30, 2013 by gabbi*

**Card Probability**

When drawing a card from a deck, the P(face card and red) is:
*Monday, September 30, 2013 by Alex*

**Probability With Cards**

When drawing a card from a deck, the P(king and hearts) is:
*Monday, September 30, 2013 by Alex*

**SS**

The political movement that brought Africans together in the 1950s was known as ________. a. imperialism b. salt trade c. colonialism d. Pan-Africanism Enslaved Africans from West Africa traveled across the Atlantic Ocean to European Colonies in the Americas by way of the ...
*Sunday, September 29, 2013 by A*

**Math**

A standard deck of cards contains 52 cards. Of these cards there are 13 of each type of suit (hearts, spades, clubs, diamonds) and 4 of each type of rank (A – K). Two cards are drawn from the deck and replaced each time back into the deck. What is the probability of ...
*Friday, September 27, 2013 by Alex*

**SS**

What is the main purpose of a market? a. to allow people to exchange goods and services b. to set prices for goods and services c. to help producers get human resources d.to increase competition between buyers and sellers A A relative price compares _________________. a. the ...
*Thursday, September 26, 2013 by Anonymous*

**College Physics 1**

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.17 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the window, as the ...
*Friday, September 20, 2013 by Autianna*

**math**

a square has a area of 60sq cm.what%is the area of one of the triangles formed by drawing both of the diagonals of the square of the area of the remaining triangles?
*Friday, September 13, 2013 by nicole*

**geometry**

in the original drawing, the rectangular pieces of paper from which the hands emerge measures 27.6 cm by 19.9 cm. on a poster of the drawing the paper is 82.8 cm long. what is the scale factor of the dilation used to make the poster? is it scale factor:3 what is the area of ...
*Tuesday, September 10, 2013 by loli*

**geometry**

in the original drawing, the rectangular pieces of paper from which the hands emerge measures 27.6 cm by 19.9 cm. on a poster of the drawing the paper is 82.8 cm long. what is the scale factor of the dilation used to make the poster? is it scale factor:3 what is the area of ...
*Monday, September 9, 2013 by loli*

**Chemistry**

I am having issues drawing the lewis structure for this...can anyone explain? CHCCH*subscript2*CH0
*Monday, September 9, 2013 by George*

**Physics**

In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner? (the rectangle has +3 uC charges in ...
*Sunday, September 8, 2013 by Sarah*

**English**

I'm writing you again for help with one scientific text. The title is: Pet ownership, dog types and attachment to pets in 9–10 year old children in Liverpool, UK. What I have to do, is to answer 25 questions we've got about that text, but as non-English speaker, I...
*Sunday, September 8, 2013 by Sonja*

**physics**

In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner? (the rectangle has +3 uC charges in ...
*Friday, September 6, 2013 by Sarah*

**Physics**

The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between q1 and the spot P. With q2 present, the ...
*Friday, September 6, 2013 by Sarah*

**physics**

The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is L = 81.0 m. In part (a) the person is looking at the base of the antenna, and his line of sight makes an angle of &...
*Wednesday, September 4, 2013 by Natalie*

**MATH**

You have a bag of marbles containing 13 red marbles, 8 green marbles, 7 yellow marbles, and 7 blue marbles. What is the probability of drawing a green marble, putting the marble in your pocket and then drawing a yellow marble?
*Thursday, August 29, 2013 by Kim*

**Math**

Need help on if the sample given is random or not random. The first 50 nurses at a nursing convention write their names on slips of paper and place them in a drawing box. After the box is shaken, 20 names are pulled from the box and each person chosen completes a survey about ...
*Wednesday, August 28, 2013 by Brandi*

**math**

Consider the experiment of drawing two cards from a deck in which all pictures cards have been removed and adding their values (with ace =1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probability of obtaining a total of ...
*Sunday, August 18, 2013 by Rachael*

**math**

Consider the experiment of drawing two cards from a deck in which all pictures cards have been removed and adding their values (with ace = 1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probability of obtaining a total of...
*Saturday, August 17, 2013 by Rachael*

**Math**

Consider the experiment of drawing two cards from a deck in which all picture cards have been removed and adding their values (with ace = 1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probabilit of obtaining a total of 5...
*Saturday, August 17, 2013 by Rachael*

**Discrete Mathematics**

3.Does it matter if we join two vertices with a straight line or a curved line when we represent a graph by drawing it on paper?
*Thursday, August 8, 2013 by Joy*

**math **

ED is making a scale drawing of a bridge on a shrrt of paper. The actual bridge is 200 feet long . To get the dimensions for the drawing, is ED multiplying by a number greater than 1 or a number less than 1 ? Explain
*Friday, July 26, 2013 by sam*

**general physics**

The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net (see the drawing). Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0°...
*Thursday, July 25, 2013 by ODU*

**physics**

A jet plane is flying with a constant speed along a straight line, at an angle of 30.0° above the horizontal, as shown in part (a) of the drawing. The plane has a weight of magnitude 87500 N, and its engines provide a forward thrust . In addition, the lift force (directed ...
*Thursday, July 25, 2013 by ODU*

**general physics**

The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box 2 and the other end is connected to box 3. The weights of the three boxes are W1 = 51.4 N, W2...
*Thursday, July 25, 2013 by ODU*

**physics**

A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 112-kg laser sensor which measures the thickness of the ice (see the drawing). The helicopter and the sensor move only in the horizontal direction and have a horizontal acceleration of ...
*Thursday, July 25, 2013 by ODU*

**physics**

A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and 1380 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. What is the tension in the cable (a) below the worker and (b) above the ...
*Thursday, July 25, 2013 by tcc*

**physics**

Concrete sidewalks are always laid in sections, with gaps between each section. For example, the drawing shows three identical 2.4-m sections, the outer two of which are against immovable walls. The two identical gaps between the sections are provided so that thermal expansion...
*Thursday, July 25, 2013 by justin*

**general physics**

A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and 1380 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. What is the tension in the cable (a) below the worker and (b) above the worker?
*Monday, July 22, 2013 by ODU*

**general physics**

A meat baster consists of a squeeze bulb attached to a plastic tube. When the bulb is squeezed and released, with the open end of the tube under the surface of the basting sauce, the sauce rises in the tube to a distance h, as the drawing shows. Using 1.013 × 105 Pa for ...
*Saturday, July 20, 2013 by please help with these practice problems*

**trig**

1. A Ferris wheel with a radius of 7m makes one complete revolution every 16 s. The bottom of the wheel is 1.5m above ground. a)Find the equation of the graph b)predict how the graph and the equation will change if the Ferris wheel turns more slowly c) test your predictions ...
*Saturday, July 20, 2013 by Azal*

**physics**

The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...
*Tuesday, July 16, 2013 by john*

**physics**

The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and supported from below at an angle θ = 38o by a brace that is attached to a pin. The beam has a weight of 346 N. Three additional forces keep the beam in equilibrium. The ...
*Tuesday, July 16, 2013 by aj*

**english**

asking questions and drawing conclusions will dowhich of the following: a-help you stay alert b-engage you in active listening c-help you remember information d-all of the above
*Sunday, July 14, 2013 by rope*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*Friday, July 12, 2013 by austin*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*Friday, July 12, 2013 by austin*

**Physics**

Steps for drawing an acceleration time graph from a velocity time graph and vice versa?l Please give me proper steps
*Wednesday, July 10, 2013 by Lance*

**physics**

In the drawing, the weight of the block on the table is 380 N and that of the hanging block is 175 N. Ignore all frictional effects, and assuming the pulley to be massless. What is the acceleration of the two block?
*Wednesday, July 10, 2013 by rex*

**math**

Suppose you want to represent a triangle with sides 12 feet, 16 feet, and 18 feet on a drawing where 1 inch = 2 feet. How long should the sides of the triangle be in inches? The sides of the triangle on the drawing should be inches, inches, and inches.
*Tuesday, July 9, 2013 by sarah*

**Physics**

Both drawings show the same square, each of which has a side of length L=0.75 m. An observer O is stationed at one corner of each square. Two loudspeakers are locate at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the same single-frequency ...
*Tuesday, July 9, 2013 by Vivien*

**general physics**

On a banked race track, the smallest circular path on which cars can move has a radius of 119 m, while the largest has a radius of 159 m, as the drawing illustrates. The height of the outer wall is 16.8 m. Find (a) the smallest and (b) the largest speed at which cars can move ...
*Monday, July 8, 2013 by tcc*

**Statistics**

Examples please!Create a drawing or plan for a 2 x 3 experimental design that would lend itself to a factorial ANOVA. Be sure to identify the independent and dependent variables.
*Sunday, July 7, 2013 by Ethel*

**English**

1.The psychology of children coping with sexual abuse 2.Adolescents who commit suicide 3.Self-inflicted pain as a response to grief/abuse Throughout the years, many young women have always struggled for freedom to deal with the problems they have. Such difficulties, including ...
*Friday, July 5, 2013 by Jennifer Han*

**physics**

Part (a) of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 69.0 N. Part (b) shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part (b)?
*Sunday, June 30, 2013 by bobby*

**physics**

A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. By pulling upward on the rope with a force the man can raise the platform and himself. The total mass of the man plus the platform is 94.7 kg. What pulling force should the man ...
*Sunday, June 30, 2013 by frank*

**physics**

A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. By pulling upward on the rope with a force the man can raise the platform and himself. The total mass of the man plus the platform is 94.7 kg. What pulling force should the man ...
*Sunday, June 30, 2013 by jessica*

**physics**

A block is pressed against a vertical wall by a force , as the drawing shows. This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The magnitude of the force is different in the two cases, while the ...
*Sunday, June 30, 2013 by bill*

**physics**

Part (a) of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 69.0 N. Part (b) shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part (b)?
*Sunday, June 30, 2013 by johhny*

**physics**

The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box 2, and the other end is connected to box 3. The weights of the three boxes are W1 = 56.2 N, W2...
*Sunday, June 30, 2013 by josh*

**physics**

A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons (N). (a) How much force would a single rope ...
*Friday, June 28, 2013 by will*

**physics**

The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person’s eyes and the building is 87.8 m. In part a the person is looking at the base of the antenna, and his line of sight makes an angle of 30.3o ...
*Thursday, June 27, 2013 by josh*

**English**

how do Huck and Jim feel about the sanctuary of the raft and how do they feel about the violence and shame of the shore? I have to make a collage on this and I don't really know what to put. I was thinking of drawing a river and in the inside of the river would be a ...
*Thursday, June 27, 2013 by HELP*

**phy**

In an urn, there are several colored balls, with equal numbers of each color. We add 14 balls which are all of the same new color, that is different from those in the urn. It is calculated that the probability of drawing, without replacement, two balls of the same color is the...
*Sunday, June 23, 2013 by Anonymous*

**maths**

In an urn, there are several colored balls, with equal numbers of each color. We add 14 balls which are all of the same new color, that is different from those in the urn. It is calculated that the probability of drawing, without replacement, two balls of the same color is the...
*Saturday, June 22, 2013 by Anonymous*

**Psychology**

Sandra is not really good at painting and drawing, but she loves to spend her spare time "dabbling" as she calls it. If her products are not successful according to aesthetic standards, why does she continue to draw and paint? A. She is attempting to reduce a primary...
*Wednesday, June 19, 2013 by Angela*

**math**

In an urn, there are several colored balls, with equal numbers of each color. We add 14 balls which are all of the same new color, that is different from those in the urn. It is calculated that the probability of drawing , without replacement, two balls of the same color is ...
*Monday, June 17, 2013 by jack *

**Physics**

A circuit is composed of a capacitor C=3 μF, two resistors both with resistance R=69 Ohm, an inductor L=6.00e-2 H, a switch S, and a battery V=25 V. The internal resistance of the battery can be ignored . Reminder: The "L=x.xxenn H" notation means "L=x.xx&...
*Monday, June 17, 2013 by AAA*

**Finite Math**

Two balls are drawn from a bag with 4 black balls and 2 white balls. Find th probability distribution got drawing 2 black balls.
*Sunday, June 16, 2013 by Ericka*

**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*