Saturday

September 5, 2015
**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 ...
*Monday, January 27, 2014 by tim*

**Writing (Writeacher and Ms. Sue)**

Write a description of a scene in the story "The Birds" by Daphne Du Maurier as it would look to a bird flying overhead. What do you think? I wrote the description about the scene when the birds are entering the house through the chimney. "The bright flames rose...
*Monday, January 27, 2014 by Anonymous*

**math(CHECK ASNWERS)**

PLEASE CHECK MY ANWERS THANKS 1.The length of the driveway shown on a blueprint is 2 inches. If the actual length of the driveway is 20 feet, what is the scale of the blueprint? 1 in. = 1 ft 1 in. = 2 ft 1 in. = 10 ft (I PICK THIS) 1 in. = 40 ft 2.Marcus built a model car that...
*Sunday, January 26, 2014 by Annabelle*

**math**

hey everyone can you guys please answer these 5 questions or 3 or 2 how many you want to answer I just need answers for these last 5 since I did the rest and thanks to you all because I do appreciate this. 1.The length of the driveway shown on a blueprint is 2 inches. If the ...
*Sunday, January 26, 2014 by Annabelle*

**physics**

A 0.55 kg block of ice is sliding by you on a very slippery floor at 4 m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with the ice block for 0.0025 seconds. The block eventually slides at an angle of 23 degrees from its original ...
*Thursday, January 23, 2014 by Sandy*

**physics**

Three forces are applied to an object, as indicated in the drawing. Force Farrowbold1 has a magnitude of 29.0 newtons (29.0 N) and is directed 30.0° to the left of the +y axis. Force Farrowbold2 has a magnitude of 18.9 N and points along the +x axis. What must be the ...
*Sunday, January 19, 2014 by Emma*

**MATH Fractions**

Suppose there are 2 pieces of the cake left over,but you don't know how many pieces were in the whole cake. Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left. You may show your work in a drawing. How you get the ...
*Thursday, January 16, 2014 by Camille*

**MATH Fractions**

Taylor baked a cake to serve after dinner. Suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You make show your work in a drawing. How do you work this...
*Thursday, January 16, 2014 by Camille*

**Business-Need help!**

1. Regarding Mexico's Porfirio Díaz, which statement is true? A. He enacted laws that favored wealthy elites. B. He overthrew the Mexican Revolution of 1910. C. He freed many peasant farmers from debt peonage. D. He reformed the hacienda system. 2. In the 1840s, the...
*Wednesday, January 15, 2014 by Sarah*

**history**

The most important factor in drawing all of the Middle East into World War I was
*Thursday, January 9, 2014 by Anonymous*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week (7 days). how many total miles did she travel ? Use a drawing and distributive property to solve. I got the answer iam asking for the what drawing should I show. pls help thank you
*Thursday, January 9, 2014 by gautam*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week (7 days). how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 by gautam*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week. how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 by gautam*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week. how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 by kiran*

**math**

What is the scale drawing of 14 1/2 and 7 1/4
*Thursday, January 2, 2014 by michael*

**Math**

Mariko has an 80 inches = 1 inch scale- drawing of the floor of her house. On the floor plan, the dimension of her rectangular living room are 1 7/8 inches by 2 1/2 inches. What is the area of her real living room in square feet?
*Friday, December 27, 2013 by Alicia*

**Math**

A scale drawing of a rectangular field is 10 cm by 8.5 cm. if the actual field has dimensions of 40 meters by 34 meters, which could be the scale used for the drawing?
*Friday, December 27, 2013 by Alicia*

**English**

Valmy gets a paper from the safe - a paper with a drawing on it. ------------------- What is the meaning of 'paper' in the sentence? Do we have to use 'a' before 'paper' or not?
*Wednesday, December 18, 2013 by rfvv*

**Precalculus**

Please check. I did these problems by drawing a graph ... So it would be great if you do it that way too if you need to correct me. I know this is overwhelming but please take your time... It is easier for me to post all of these at once,since I can find it easier rather than ...
*Saturday, December 14, 2013 by Anonymous*

**Math help?**

Can someone plz explain how to show scaled measurements in a scale drawing? For example: Width/x=24in/1in length/x= 24in/1in
*Thursday, December 12, 2013 by Princess Anna*

**Math**

Jordan has $10.00.If each drawing pen costs $1.49,how many can he buy?
*Thursday, December 12, 2013 by Matt*

**Math**

Jordan has $10.00.if each drawing pen costs $1.449,how many can he buy?
*Thursday, December 12, 2013 by Taylor*

**Math help,plz :(**

So I'm drawing a scale drawing of A room (Yes, I know what a Scale drawing is) and I don't know how to do it adding proportions.... and what does it mean to Use dimensions to scale the room? Care to explain?
*Thursday, December 12, 2013 by Princess Anna*

**physics- multiple choice**

1. Two forces are applied to a box on a frictionless surface. One force is 40 N [S]. The second force is 70 N [N30ºW]. What is the overall net force? a) 40.6 N [S59.5ºE] b) 110 N c) 40.6 N [N59.5ºW] d) 40.6 N [S30.5ºW] 2. When drawing free body diagrapms, ...
*Thursday, December 12, 2013 by Jessie*

**College Algebra**

The letters in the word probability are written on separate slips of paper. Find the probability of drawing two i's in a row without replacement.
*Wednesday, December 11, 2013 by Sarah*

**math**

Andrew and Shawn are making kite. They start by drawing their plan onto some squared paper. The initial points that they use are O(0,0), A(7,24) and B(25,0). Andrew says that the fourth vertex of the kite should be on the line that is through (0,0) and perpendicular to the ...
*Tuesday, December 10, 2013 by Anonymous*

**Physics(Help!!!!)**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle Î¸= 35.0âˆ˜ with respect to the ...
*Monday, December 9, 2013 by keitanako*

**Math**

How much must be invested to have 25,000.00 after 5 years in an account drawing 7% interest compounded continuously?
*Monday, December 9, 2013 by Crystal*

**Physics 2**

A sheet of plastic (n = 1.56) covers one slit of a double slit (see the drawing). When the double slit is illuminated by monochromatic light (vacuum = 568 nm), the center of the screen appears dark rather than bright. What is the minimum thickness of the plastic?
*Sunday, December 8, 2013 by Anonymous*

**Math :)**

In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag. Draw a: Probability Blue marble 5/10 Red marble 3/10 White marble 2/10 Total: 10 Am I doing this right? Thanks...
*Friday, December 6, 2013 by Kamie*

**College Algebra**

Find the probability of drawing two i's in a row without replacement.
*Tuesday, December 3, 2013 by Sarah*

**Pre Alg HELP**

What can the scale drawing of a 10 x 8 ft room be? Help?
*Tuesday, December 3, 2013 by Kurt Cornell*

**Math**

How do I find the length of an object on scale drawing? an automobile is 16 feet long; 1 inch equals 6 inches.
*Monday, December 2, 2013 by Jalen Brown*

**Statistics**

Suppose 5 cards are drawn, without replacement, from a standard bridge deck of 52 cards. Find the probability of drawing 4 clubs and 1 non- club.
*Sunday, December 1, 2013 by DD*

**Math**

1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be...
*Sunday, December 1, 2013 by anonymous*

**physics**

A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached, as the drawing illustrates. The spring constant of the spring is 340 N/m. The coefficient of kinetic friction between the lower ...
*Tuesday, November 26, 2013 by Donna*

**physics**

To measure the static friction coefficient between a 1.6-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 400 N/m) is attached to the block. Someone pushes on the end of the spring in a direction perpendicular to the wall until ...
*Tuesday, November 26, 2013 by Donna*

**Physics Classical Mechanics**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle θ= 35.0∘ with respect to the horizontal. Assume that ...
*Tuesday, November 26, 2013 by A*

**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*