Thursday

July 24, 2014

July 24, 2014

**Recent Homework Questions About Drawing**

Post a New Question | Current Questions

**physics PLEASE HELP**

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?
*Thursday, January 10, 2013 at 8:48pm*

**math**

you are building a deck. you make a scale drawing with a scale of 2 feet=1/2 inch. the actual deck is 18 feet long and 12 feet wide. Determine the length and width of the deck in the scale drawing.
*Tuesday, January 8, 2013 at 8:44pm*

**Math**

Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and sides. Draw the cushions ...
*Monday, January 7, 2013 at 5:40pm*

**math**

Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and sides. Draw the cushions ...
*Monday, January 7, 2013 at 4:56pm*

**Math**

A square cushion measures 65 cm by 65 cm and 10 cm thick. Using a scale of 1:20 draw views of the cushion and label them with their measurements. Can someone help me with this? How would I go about drawing them and using the scale for measurements?
*Monday, January 7, 2013 at 4:29pm*

**Math**

1. What are the actual measurements of your room? _L- 315 W-237 _____________________________ 2. What is the scale that you will use for your scale drawing? ______________0.05_________ 3. What will the dimensions of your room be in your scale drawing? ________________
*Sunday, January 6, 2013 at 3:53pm*

**math**

You draw 2 marbles from a bag containing 3 blue marbles, 2 green marbles, and 5 red marbles without replacement. What is the probability of drawing a red marble and then a green marble?
*Friday, January 4, 2013 at 7:23pm*

**Math**

A scale drawing of a house is drawn with a scale of 1 in. : 16 ft. Find the actual length of a hallway that is 5/8 in. On the scale drawing. Show your work
*Thursday, January 3, 2013 at 9:43pm*

**Physics**

Find the speed, v, of a pendulum at the bottom of its swing (B), given that it has mass m and initial height at A is h (the difference in height from B to A). Your answer will be in terms of g as well. Included is a drawing of a pendulum at its maximum height (A), and at its ...
*Thursday, December 27, 2012 at 8:14pm*

**PHYSICS**

1. What is the weight of a 2.88 kg snake? 2. A girl drops a rock straight down from a bridge. Assume negligible air resistance. How fast is it going 4.0 s later? 3. A rock with a mass of 22.45 kg is falling from a tall tower. a. What is the Net Force if the rock is in free ...
*Friday, December 21, 2012 at 2:24am*

**Chemistry**

I need help drawing these structures. 2-chloro-3-ethylhexanal 2,2-dimethylcyclopentanol 5,5,7-triiodo-trans-3-nonene para-bromomethylbenzene Thanks for the help I'm having hard time with these.
*Wednesday, December 19, 2012 at 10:23pm*

**Physics**

In the drawing, the weight of the block on the table is 405. N and that of the hanging block is 191. N. Ignore friction, the mass of the rope, and the mass of the pulley. Find the acceleration of the two block system in m/s2.
*Wednesday, December 19, 2012 at 4:48pm*

**HISTORY URGENT **

2. Read the passage and answer the following question: Within a few hours after bidding good-by to General Washington, Captain Hale, taking with him one of his own trusty soldiers, left the camp at Harlem, intending at the first opportunity to cross Long Island Sound. There ...
*Wednesday, December 19, 2012 at 10:43am*

**math **

a bag contains 5 blue marbles 4 red marbles and 1 green marble. what is the probability of drawing a blue marble,the another blue marble without replacement
*Tuesday, December 18, 2012 at 10:01pm*

**math**

if a tree in a 1/2 inch scale drawing is 11 inches tall, how tall is the actual tree?
*Saturday, December 15, 2012 at 12:46pm*

**Physics**

The drawing shows a skateboarder moving at 6.41 m/s along a horizontal section of a track that is slanted upward by 47.4 ° above the horizontal at its end, which is 0.612 m above the ground. When she leaves the track, she follows the characteristic path of projectile ...
*Friday, December 14, 2012 at 6:48pm*

**maths**

Find the probability of drawing a diamond card in each of the consecutive draws from a well shuffled pack of cards,if the card drawn is not replaced after the first draw
*Friday, December 14, 2012 at 4:53am*

**Chemistry**

(a) The figure above shows how the energy of a system varies as a chemical reaction proceeds. Match the numbers features labeled on the figure above to their corresponding statements below: energy state of the reactants: 1/2/3/4/5 activation energy of the reaction: 1/2/3/4/5 ...
*Friday, December 14, 2012 at 1:25am*

**Physics**

A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 554 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of the rope are not the ...
*Wednesday, December 12, 2012 at 6:05pm*

**geometry**

A drawing on a sheet of graph paper shows a kite 8 cm wide and 10 cm long. The width of the kite is labeled 2ft. write and solve a problem about the kite.
*Monday, December 10, 2012 at 6:35pm*

**physics**

An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale.
*Sunday, December 9, 2012 at 8:16pm*

**English - ms. sue**

Ms. Sue, my sister write out story here it is. On Monday she looked in her mailbox, although she had no reason to expect a letter so soon. But there it was, a small, square car. She held it in her two hands, testing its weight. It was an invitation to an exhibition of drawings...
*Thursday, December 6, 2012 at 8:46pm*

**Physics**

As the drawing shows, two thin strips of metal are bolted together at one end and have the same temperature. One is steel, and the other is aluminum. The steel strip is 0.062% longer than the aluminum strip. By how much should the temperature of the strips be increased, so ...
*Wednesday, December 5, 2012 at 12:41am*

**accounting**

On July 1, 2013, a firm purchased a 1-year insurance policy for $6,300 and paid the full premium in advance. The insurance expense associated with this policy for the year ending December 31, 2013, is $6,300. $3,150. $3,675. $2,100. On January 2, 2014, a firm purchased ...
*Sunday, December 2, 2012 at 5:24pm*

**Accounting**

On July 1, 2013, a firm purchased a 1-year insurance policy for $6,300 and paid the full premium in advance. The insurance expense associated with this policy for the year ending December 31, 2013, is $6,300. $3,150. $3,675. $2,100. On January 2, 2014, a firm purchased ...
*Sunday, December 2, 2012 at 5:21pm*

**Math**

Are drawing a black and red card independent or mutually exclusive? Are drawing a black card and queen independent? Are drawing a face card and queen independent?
*Sunday, December 2, 2012 at 4:14pm*

**physics**

A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is open to the air at the top. Friction is absent. The spring constant of the spring is 4100 N/m. The piston has a negligible mass and a radius of 0.010 m. (a) When the air beneath ...
*Saturday, December 1, 2012 at 2:12pm*

**English**

1. He wants to be a famous cartoonist because he likes drawing cartoons. 2. He wants to be a famous professor because he likes teaching others and he likes learning from books. 3. He wants to be an architect because he likes drawing buildings. 4. He wants to be a businessman ...
*Friday, November 30, 2012 at 10:44pm*

**Physics**

An object is placed 6 cm in front of a concave lens of focal length 3 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
*Wednesday, November 28, 2012 at 6:27pm*

**Physics**

An object is placed 10 cm in front of a convex mirror of focal length 4 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
*Wednesday, November 28, 2012 at 6:26pm*

**Physics**

An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
*Wednesday, November 28, 2012 at 6:26pm*

**Physics**

An object is placed 8 cm in front of a convex lens of focal length 6 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
*Wednesday, November 28, 2012 at 6:25pm*

**Math**

1. You have 3500 in savings for 9 months at a rate of 4.5%. How much will you have at the end of that time? Ans. my book says: 3,618.13 I come up with: 118,125 2. Scale reads 1 inch = 24 inches for a house window. If window measures 1 3/4 inches, what is the actual length? Ans...
*Wednesday, November 28, 2012 at 10:03am*

**Math**

You decide to make a scale drawing of your bedroom. YOur bedroom measures 12 ft. wide by 20 ft. long. If you are using an 8.5" x 11" paper, whate scale will you use. Explain.
*Tuesday, November 27, 2012 at 10:35pm*

**math**

A ship sail S 40 degrees W for 4 hours at 30 kph. make a scale drawing
*Monday, November 26, 2012 at 11:02pm*

**maths**

scale for actual size 12m,and drawing size 3cm
*Monday, November 26, 2012 at 7:06pm*

**physics**

The block in the drawing has dimensions L0×2L0×3L0,where L0 =0.5 m. The block has a thermal conductivity of 150 J/(s·m·C˚). In drawings A, B, and C, heat is conducted through the block in three different directions; in each case the temperature ...
*Monday, November 26, 2012 at 3:03pm*

**physics**

A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 195-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 ...
*Sunday, November 25, 2012 at 9:16pm*

**Physics**

A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A^2 = 0.0700 m2. The gas has a density of ρ = 1.80 kg/m3. The Venturi meter has a ...
*Friday, November 23, 2012 at 6:41pm*

**Physics**

An object is placed 8 cm in front of a convex lens of focal length 6 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
*Friday, November 23, 2012 at 1:29pm*

**Math**

Assuming that each corner must be pinned, what is the least number of drawing pins that you need to display four rectangular pictures of the same size and shape so that they can all be seen?
*Wednesday, November 21, 2012 at 9:30am*

**Math**

Assuming that each corner must be pinned, what is the least number of drawing pins that you need to display four rectangular pictures of the same size and shape so that they can all be seen?
*Tuesday, November 20, 2012 at 11:47pm*

**Math**

Create 4 proportions that will work for the following scenario: If the scale is 3.5 in = 8 ft and the drawing measures 6 in, what is the actual distance?
*Monday, November 19, 2012 at 9:48pm*

**Physics**

A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0700 m^2. The gas has a density of ρ = 1.80 kg/m^3. The Venturi meter has a ...
*Monday, November 19, 2012 at 4:24pm*

**physics**

A block of mass 0.78kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.29. This section (from points B to C) is 4.08m in length. ...
*Sunday, November 18, 2012 at 1:25am*

**phisics**

An object is attached to the lower end of a 100-coil spring that is hanging from the ceiling. The spring stretches by 0.210 m. The spring is then cut into two identical springs of 50 coils each. As the drawing shows, each spring is attached between the ceiling and the object...
*Saturday, November 17, 2012 at 7:47pm*

**Physics**

A thin, uniform rod is hinged at its midpoint. To begin with, one half of the rod is bent upward and is perpendicular to the other half. This bent object is rotating at an angular velocity of 6.8 rad/s about an axis that is perpendicular to the left end of the rod and parallel...
*Saturday, November 17, 2012 at 7:45pm*

**Using windows**

When saving a document or drawing, you determine the destination folder in which the file will be save by A. Making a selection in the save: box. B.Choosing a folder from the destination drop-down menu. C.Typing the folder name in the filename: box. D.Selecting the folder from...
*Saturday, November 17, 2012 at 6:11pm*

**Physics 1**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*Saturday, November 17, 2012 at 2:49pm*

**physics**

Water (η = 1.00E-3 Pa·s) is flowing through a horizontal pipe with a volume flow rate of 0.0153 m3/s. As the drawing below shows, there are two vertical tubes that project from the pipe. Assume that H = 0.0477 m and L = 0.670 m I know how to plug in everything but...
*Friday, November 16, 2012 at 3:06pm*

**Physics**

Workers have loaded a delivery truck in such a way that its center of gravity is only slightly forward of the rear axle, as shown in the drawing. The mass of the truck and its contents is 8340 kg. Find the magnitudes of the forces exerted by the ground on the following. a) the...
*Thursday, November 15, 2012 at 12:55am*

**Physics**

A rotational axis is directed perpendicular to the plane of a square and is located as shown in the drawing. Two forces, 1 and 2, are applied to diagonally opposite corners, and act along the sides of the square, first as shown in part a and then as shown in part b of the ...
*Thursday, November 15, 2012 at 12:51am*

**Fractions**

Solve by drawing a diagram. A Tour bus travels 7 1/2 mi south, 3 1/2 east, 4 1/3 mi north, and 11 1/2 mi west. How far has the tour bus traveled when it crosses its own path?
*Wednesday, November 14, 2012 at 10:28pm*

**art**

1. This type of artwork can usually be found on buildings or other public property. (1 point)scraffito intaglio graffiti graphics 2. This is an example of artwork that uses the written word. (1 point)photography calligraphy intaglio scraffito 3. This is one of the five ...
*Tuesday, November 13, 2012 at 8:24pm*

**physics**

A block rests on a frictionless horizontal surface and is attached to a spring. When set into simple harmonic motion, the block oscillates back and forth with an angular frequency of 9.0 rad/s. The drawing shows the position of the block when the spring is unstrained. This ...
*Tuesday, November 13, 2012 at 7:06pm*

**finite math**

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?
*Tuesday, November 13, 2012 at 6:05pm*

**finite math**

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?
*Tuesday, November 13, 2012 at 6:00pm*

**Physics**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*Monday, November 12, 2012 at 11:41pm*

**Physics**

A 7410-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the perigee and is at the far ...
*Monday, November 12, 2012 at 11:14pm*

**Physics**

A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 36.0 kg/s. ...
*Monday, November 12, 2012 at 6:22am*

**physics**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*Sunday, November 11, 2012 at 7:12am*

**Physics**

A 7410-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the perigee and is at the far ...
*Sunday, November 11, 2012 at 6:37am*

**Physics**

A ball and a thin plate are made from different materials and have the same initial temperature. The ball does not fit through a hole in the plate, because the diameter of the ball is slightly larger than the diameter of the hole. However, the ball will pass through the hole ...
*Friday, November 9, 2012 at 11:48pm*

**S.S. Check answers**

1. The Americans formed a republic, a government in which citizens rule through a. elected representatives.*** b. monarchies. c. kingships. d. appointed representatives. 2. Convention delegates broke the deadlock between large and small states when they approved a. the Two-...
*Friday, November 9, 2012 at 2:17pm*

**Physics**

The ends of a light string are tied to two hooks A and B in a ceiling which are 100 cm apart horizontally so that the length between hooks is 140 cm. A 650g mass is then attached by a second length of string to a point C on the first, 80 cm from A, and hangs freely. Find, by ...
*Thursday, November 8, 2012 at 11:07pm*

**Math**

Draw two scalene triangles that are not congruent, but have exactly five sets of parts (sides and angles) that are congruent. Make a drawing that is to scale. Label yourmeasurements.
*Thursday, November 8, 2012 at 8:22pm*

**Physics**

A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (è = 60.0°) Suppose the total mass of a chair and its occupant is 222 kg
*Wednesday, November 7, 2012 at 9:28pm*

**Physics**

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle è = 20°. For a speed of 40 m/s, at what value of the distance d should a driver locate his ...
*Wednesday, November 7, 2012 at 2:09pm*

**Physics**

On a banked race track, the smallest circular path on which cars can move has a radius of 115 m, while the largest has a radius 165 m, as the drawing illustrates. The height of the outer wall is 18 m.
*Wednesday, November 7, 2012 at 11:26am*

**Physics**

A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (è = 60.0°) Suppose the total mass of a chair and its occupant is 222 kg.
*Wednesday, November 7, 2012 at 11:21am*

**Physics**

A stone has a mass of 6.00 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.73. When the tire surface is rotating at a maximum speed of 17 m/s, the ...
*Wednesday, November 7, 2012 at 6:53am*

**Math**

Sometimes scale drawings are shown on graph paper. Each square on this graph paper is 1/4 inch. Use the scale drawing of the living room to answer each question. There are 1,296 in.2 in one square yard. Use a proportion to find out how many square yards of carpet it would ...
*Monday, November 5, 2012 at 4:02pm*

**Physics**

A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
*Monday, November 5, 2012 at 2:24am*

**phisics**

A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
*Sunday, November 4, 2012 at 9:46pm*

**Math**

The odds are 3 to 5 in favor of drawing a blue marble in one random drawing from an urn containing only red and blue marbles. There are more than 100 marbles in the urn. what is the minimum number of red marbles that there could be in the urn?
*Sunday, November 4, 2012 at 8:43pm*

**physics**

A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air ...
*Sunday, November 4, 2012 at 8:22pm*

**math**

the scle drawing of a close is 3 inches wide by 4.2 inches long. the original closet is 10 feet wide. how long is the original closet in feet? how long is the original closet in yards?
*Sunday, November 4, 2012 at 4:26pm*

**Physics**

A long, thin rod is cut into two pieces, one being twice as long as the other. To the midpoint of piece A (the longer piece), piece B is attached perpendicularly, in order to form the inverted “T” shown in the drawing. The application of a net external torque causes ...
*Saturday, November 3, 2012 at 10:15pm*

**Physics**

Trace by drawing the path of a ray of light shown in 90 degrees. This ray is incident in a perpendicular direction on the figure through a glass triangular prism on one side of the right angle. Given that the two sides of the right angle are equals and that the critical angle ...
*Friday, November 2, 2012 at 10:13am*

**Intergated chemistry/physics**

Draw a setup containing 3 gears. For every turn of the input gear, you need the output gear to spin 9 times. The drawing doesn't have to be perfect, but make sure to label the input gear, the output gear, and the number of teeth on each gear. Please E-mail me the picture ...
*Wednesday, October 31, 2012 at 9:59am*

**math**

Ten face-down cards spell the word "phonograph" one of Thomas Edison's most famous inventions. If you draw one what is the chance of drawing a. a vowel? b. a letter of the alphabet?
*Tuesday, October 30, 2012 at 2:19pm*

**Physics**

The drawing shows three particles far away from any other objects and located on a straight line. The masses of these particles are mA = 363 kg, mB = 517 kg, and mC = 154 kg. Find the magnitude and direction of the net gravitational force acting on each of the three particles...
*Tuesday, October 30, 2012 at 1:50am*

**Physics**

In the drawing, the weight of the block on the table is 384 N and that of the hanging block is 195 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two blocks. 1 m/s2 (b) Find the tension in the cord.
*Monday, October 29, 2012 at 2:07pm*

**Physics 1**

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 and ' on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 15.0 N, what is the ...
*Monday, October 29, 2012 at 12:41pm*

**Physics 1**

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 55600 N. The lift force generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the magnitude of the lift...
*Monday, October 29, 2012 at 11:45am*

**physical**

You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window ( 0.715 m high, 2.29 m wide) in your compartment, the train is moving ...
*Sunday, October 28, 2012 at 5:57pm*

**physics**

The drawing shows an intravenous feeding. With the distance of 0.610 m, nutrient solution (ρ = 1010 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.
*Sunday, October 28, 2012 at 1:53am*

**Physics**

The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed v0. On the longer track the block ...
*Sunday, October 28, 2012 at 12:49am*

**phisics**

The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramps. The two boxes have ...
*Sunday, October 28, 2012 at 12:47am*

**Physics**

In the drawing, the weight of the block on the table is 384 N and that of the hanging block is 195 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two blocks. m/s2 (b) Find the tension in the cord.
*Thursday, October 25, 2012 at 3:19pm*

**physics**

Only two forces act on an object (mass = 4.00 kg), as in the drawing. Find the magnitude and direction (relative to the x axis) of the acceleration of the object. Ftotal=Sqrt(60^2+40^2)=72.11(N) Angle=tan-1(60/40)= 56.3° (How did you get 56.3°) a= F/m=72.11/4=18(m/s/s...
*Thursday, October 25, 2012 at 3:15pm*

**Physics**

The drawing shows a circus clown who weighs 710 N. The coefficient of static friction between the clown's feet and the ground is 0.49. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum pulling force ...
*Thursday, October 25, 2012 at 3:07pm*

**Physics**

Part a of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 107.5 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?
*Thursday, October 25, 2012 at 2:54pm*

**physics**

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 55600 N. The lift force generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the magnitude of the lift...
*Thursday, October 25, 2012 at 2:49pm*

**Physics**

The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed v0. On the longer track the block ...
*Wednesday, October 24, 2012 at 9:43am*

**physics**

The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramps. The two boxes have ...
*Wednesday, October 24, 2012 at 9:42am*

**physics**

A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air ...
*Tuesday, October 23, 2012 at 5:15pm*

**Math**

Andy has 6 dimes and 10 nickels in his pocket. If he draws two coins without replacing the first coin, what is the probability of drawing a nickel and then a dime? A ¼ B 15/64 C 1/60 D 3/5
*Tuesday, October 23, 2012 at 8:45am*

**Physics**

The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.025 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.060 kg and is initially at rest. The collision is not head-...
*Tuesday, October 23, 2012 at 8:37am*

**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 0.094-kg stone strikes the boat at a velocity of 14 m/s, 15° below due east, and ricochets off at a velocity...
*Monday, October 22, 2012 at 8:22pm*

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