Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 427

**physics**

Two charged bodies exert a force of 0.225 N on each other. If they are moved so that they are one-third as far apart, what force is exerted?

**Grade 12 Math Please help!!**

Please can anyone answer this which I have posted previously? Anyone with knowledge of this area of maths? Thanks in anticipation. :) Formula given: The decibel (dB) scale for measuring loudness, d, is given by the formula d = 10 log base ten(I X 12 to the power of 12) where I...

**Math**

Formula given: The decibel (dB) scale for measuring loudness, d, is given by the formula d = 10 log base ten(I X 12 to the power of 12) where I is the intensity of sound in watts per square metre. a) Find the number of decibels of sound produced by a jet engine at a distance o...

**Maths**

Find the number of decibels of sound produced by a jet engine at a distance of 50 metres if the intensity is 10 watts per square metre. This time I'll post the given formula too. Sorry to leave it out before! The dB scale for measuring loudness, d, is given by the formula:...

**Maths**

Find the number of decibels of sound produced by a jet engine at a distance of 50 metres if the intensity is 10 watts per square metre.

**special ed.**

Some years back i made each letter in the alphabet on index.....i folded the cards and then did cutting......I forget how to do it .....can you help ?

**Engl**

I believe that is what the teacher wants, the main clause. Thank you very much.

**Engl**

Simple subject and predicate? Officals hope the new shopping mall will increase pedestrian traffic and lure shoppers to the downtown area. ss...officals sp...hope

**Engl.**

Simple subject and predicate? The customs officals planned to seize a huge shipment of heroin when it arrived. SS...officals sp...planned

**Engl.**

Simple subject and predicate? The villagers were afraid the volcano would erupt. simple subject....villagers simple predicate...were

**English**

I believe that the simple predicate is "had" in the main clause. In the subordinate clause... "was cheating". What about "to banish"? is this an infinitive? Or an infinitive used as a direct object?

**English**

Simple predicate? We had to banish Mel from the game because he was cheating.

**physics**

A metal sphere hangs from a string and has 2 kg of mass. The sphere has a charge of +7.1 µC. A uniform electric field is turned on and directed to the right.

**physics**

A 0.67-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.10 to 0.21 m (relative to its unstrained length), the speed of the sphere decreases from 5.35 to 4.55 m/s. What is the spring constant of the spring? (The sphere hangs from the bo...

**physics**

A 0.67-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.10 to 0.21 m (relative to its unstrained length), the speed of the sphere decreases from 5.35 to 4.55 m/s. What is the spring constant of the spring? (The sphere hangs from the bo...

**physics**

A tray is moved horizontally back and forth in simple harmonic motion at a frequency of f = 1.86 Hz. On this tray is an empty cup. Obtain the coefficient of static friction between the tray and the cup, given that the cup begins slipping when the amplitude of the motion is 5.2...

**physics**

A spring stretches by 0.018 m when a 3.6-kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 2.9 Hz?

**physics**

The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of the springs attached to the axles. Each of the identical springs attached to the front axle supports 303 kg. A person pushes down on the middle of the front ...

**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 blo...

**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 ...

**Liquid capacity of pitcher**

If a ceramic pitcher is 9.5 inches tall and has a diameter that is 3 3/4 at top and 4 inches at the bottom how many ounces will it hold. There use to be a gallon ratio to inches and you could deduct 30 percent for variating diameters. Do you know the conversion?

**Loans**

I don't know

**Loans **

A borrower received a 30-year ARM mortgage loan for $120,000. Rate caps are 3/2/6 (first adjustment/subsequent adjustments/total over the life of the loan). The start rate was 3.50% and the loan adjusts every 12 months for the life of the mortgage. The index used for this mort...

**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...

**Math**

Is it sometimes, always or never true that a number is a factor and a multiple of itself?

**Physics**

A block is released from the top of a frictionless incline plane as pictured above. If the total distance travelled by the block is 1.2 m to get to the bottom, calculate how fast it is moving at the bottom using Conservation of Energy.(incline 20 degrees mass of block is 2.5kg)

**physics**

A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 20.0 m. She pushes in a direction 28.0° below the horizontal. A 54.0-N frictional force opposes the motion of the cart.

**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 abo...

**physics**

Pilots of high-performance fighter planes can be subjected to large centripetal accelerations during high-speed turns. Because of these accelerations, the pilots are subjected to forces that can be much greater than their body weight, leading to an accumulation of blood in the...

**Physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to six times her weight as she goes through the dip. If r = 22.0 m, how fast is the roller coaster ...

**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 th...

**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...

**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.

**physics**

In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 42 m/s (around 90 mi/h) in a time of 7.3 s. The mass of the car and riders is 5700 kg. Find the average net force exerted on the car and riders by the mag...

**Physics**

A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 20.0 m. She pushes in a direction 28.0° below the horizontal. A 54.0-N frictional force opposes the motion of the cart.

**Physics**

A truck is traveling at a speed of 23.0 m/s along a level road. A crate is resting on the bed of the truck, and the coefficient of static friction between the crate and the truck bed is 0.610. Determine the shortest distance in which the truck can come to a halt without causin...

**science**

A man seeking to set a world record wants to tow a 106,000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is 0.82. What is the greates...

**chemistry**

A student took 100 mL of a solution of Mg(OH)2 and reacted it with HCl (aq) to calculate the concentration of hydroxide ions in the solution. If 13.75 mL of 0.010M HCl was used to react with all of the OH- (aq) in the 100-mL solution, what was the concentration of hydroxide io...

**ecology**

how do you construct a age pyramid. i have the age class and observed individuals how do i get the present in each age class

**Physics**

ok according to you the answer must be 1.5 but that is wrong :(

**Physics**

A 24.5-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 77.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.

**physics**

but if you have two variables how do you solve? I understand that force=ma so the normal force is (284)(9.8)=2783.2, but I don't really understand how to determine when acceleration is .28

**physics**

Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 284 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' force. If the buoyant for...

**Math**

How do you write 22 6/9 into an equivalant fraction?

**Physics**

escalator that leads down into a subway station has a length of 27.0 m and a speed of 1.7 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11 s. Relative to the escal...

**Calculus**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y = 4(x^(1/2)), y=4, and 2y +2x = 6 I keep getting an area around 21.3 but it is incorrect. Am I close? Thank you!

**Organic Chemistry**

Which odor will be detected first if both containers are opened simultaneously, NH3 or H2S vapors?

**chemistry**

I need the half reactions for this redox reaction: 2KClO3-----> 2KCl + 3 O2

**Informal Logic**

<7{6[3(02)66]}> In a survey of 10 film historians, half voted for Nosferatu as the greatest vampire film ever made, and the other half voted for Dracula. However, when asked which lead vampire character they considered more charismatic, all of the film critics chose Dra...

**Informal Logic**

<11{5[1(01)57]}> Arthur: The solutions to most mystery novels I read are not believable. However, my enjoyment of a mystery novel depends only on its suspenseful mood and colorful characters. Norton: Roughly 80% of the mystery novels I read have believable solutions, wh...

**Informal Logic**

<21{3[2(08)44]}> Surveys show that people who use calorie information to decide which foods to eat consume on average 100 calories less than they would if they didn’t check calorie information before eating. Strangely though, people who use calorie information in t...

**Informal Logic**

11{2[3(11)35]}> Some politicians claim to support the environment in speeches they make around the country. However, to get to those speeches they ride in gas guzzling, pollution creating private planes. They therefore clearly don’t believe a word of what they say and ...

**Informal Logic**

<11{1[3(02)02]}> Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1) does...

**Informal Logic**

<11{7[2(03)79]}> Looking to increase the profits of his lemonade stand, Johann doubled the price of a cup of lemonade from 25 cents to 50 cents. This clearly shows Johann’s lack of business sense, for now he’ll almost certainly sell fewer cups at the new price...

**English**

The only car for him is one of those new GTO's Car=subject for=verb is=linking verb one of those new GTO's=prep phase

**English**

What are the parts of the sentence. example: verb, subject, prepositional phase, linking verb, subject compliment, direct object, indirect object, object compliment. The committee elected George chairman.

**applied physics**

a gardener pushes a mower a distance of 900m in mowing a yard. the handle of the mower makes an angle of 40.0 degrees with the ground. the gardener exerts a force of 35.0 N alonf the handle of the mower. how much work does the gardener do in mowing the lawn?

**applied physics**

the work required to lift eleven 94.0lb bags of cement from the ground to the back of a truck is 4340ft lb. what is the distance from the ground to the bed of the truck?

**applied physics**

two painters stand on a 10.00m scaffold. one,of mass 65.0kg, stands 2.00m from one end. the other, of mass 95.0kg, stands 4.00m from the other end. they share a paint container of mass 18.0kg located between the two and 2.50m from the larger person. what weight must be support...

**applied physics**

a 5000lb truck is 20.0ft from one end of a 50.0ft bridge. a 4000lb car is 40.0ft from the same end. how much weight must each end of the bridge support?(neglect the weight of the bridge.)

**applied physics**

a sky diver jumps out of a plane at a height of 5000 ft. if her parachute does not open until she reaches 1000 ft, what is her velocity at that point if air resisitance is disreguared?

**applied physics**

an ironworker drops a hammer 5.25m to the ground. what is its speed as it hits the ground?

** PHI103:**

You should read this book. Everybody likes it so it must be good" may commit which fallacy?

**statistic**

Assume that previous fast-food research has shown that 80 percent of the consumers like curly French fries. The researcher wishes to have a standard error 6 percent or less and be 95 percent confident of an estimate to be made about curly French fry consumption from a survey. ...

**Marketing**

Assume that previous fast-food research has shown that 80 percent of the consumers like curly French fries. The researcher wishes to have a standard error 6 percent or less and be 95 percent confident of an estimate to be made about curly French fry consumption from a survey. ...

**statistics**

The average amount spent at a fast-food restaurant in California was $3.30, with a standard deviation of $.40. Yet in Georgia, the average amount spent at a fast-food restaurant was $3.25, with a standard deviation of $.10. What do these statistics tell you about fast-food con...

**math**

30 + 20 / ((1 * 5) * 2) =

**Business Math**

Oakwood plowing company purchased two new plows for the upcoming winter. Oakwood must make a single payment of 25,03 to pay for the plows. As of today he has $24,200. Asuume the Oakwood puts the money in the bank today, what rate of interest will it need to pay off the plows i...

**general chemistry**

When divers exhale beneath the surface of the water, bubbles rise to the surface. Explain this behavior.

**general chemistry College**

Which of the following mixture would be most likely to produce carbon dioxide? Explain Why? a. magnesium and nitric acid: Mg+ HNO3 b. sodium carbonate and sufuricacid: Na2CO3+H2SO4 c. H2O+ Cu

**research methods**

determining variables and identifying this type of quasi-exp design for this study is confusing: Study: lower socioeconomic status student benefit more over time from an academic tutoring program than higher socioeconomic students. Now: looks like this is a longitudal exp. DV ...

**math**

aww thats a shame and well thats good to know thank you again C:

**math**

It really does thank you. and quick questions do you do tutoring lessons??

**math**

so 16x^3y^4 thank you !

**math**

-16x^2y^2x^3y^3??

**math**

what is the product of -8x^2y and -2xy^3 using the laws of exponents??

**Math **

-225=-14t-t

**Math ms sue please help**

the dimensions are 8x6. if you multiply the cost $.085 times 48 you get $40.80.

**health**

What effects or potential effects do technologically based communication modalities—between patients and health care providers and between health care providers only—have on health care costs

**Chemistry 107**

1. Suppose you have a box of 10 marbles, a 50mL gradulated cylinder, and some water. How would you measure the volume of a marble? (Assume that all marbles are equal volume.) 2. Suppose a digital balance reads 0.15g when is placed on the balance and the balance reads 24.68g, w...

**math**

IF 81 PEOPLE NEED TO TAKE A TEST, BUT ONLY 13 HAVE ACTUALLY TAKEN TEST, WHAT IS THE PERCENTAGE OF PEOPLE WHO HAVE TAKEN TEST?

**ALGEBRA**

SOLVING INEQUALITY 5X+3X+X> OR EQUAL TO 2+3X+16 PLEASE HELP

**math**

Base is 16 cm squared, Width is 2.5 cm. what is the perimeter and height

**American democracy**

what is the congressional lawmaking process biased toward

**econ**

economic summary report (plus income & expense report and balance sheet both with all appropriate ratios) presenting the economic viability of the Lemonade Stand Business.

**Discussion Board**

I would help the classmate in order to get the higher grade i deserve and you are doing group work its ok to help out.

**Writing**

Need some suggestions on how to create a argumentive rough draft apa style. Just need some examples. Here is what my assignemtn reads: Post the rough draft of your Research Topic and Source Evaluation Essay. In this essay you will present the topic you have selected from the c...

**geometry math**

how many different triangles can be traces along the line segments in the diagram below?

**geometry math**

three teenagers can eat 6 pizzas in half an hour. Assuming that their friends eat at the same rate, how many pizzas can 5 teenagers eat in 90 minutes?

**ECE 203**

Does the title page need to be first?

**ECE 203**

I have a power point presentation and need some help. Focus of the Final Project The summative assignment is to develop a PowerPoint presentation designed for a parent meeting. The goal is to inform parents of how your program aligns curriculum plans with early learning standa...

**Chemistry**

What is the mass of a sample of material that has a volume of 51.1 cm3 and a density of 6.31 g/cm3?

**PHI 103**

Straw man fallacy

**Dressmaker**

when paper pattern pieces are dovetailed in a cutting layout, they're placed so they?

**nutrition**

Could someone give me an example or guidelines to complete the following paper? Diane Nelson is a 49 year old, Native American female. She is currently being treated for hypertension, hypothyroidism and elevated LDL cholesterol levels. She has a family history of hypertension ...

**Energy**

Find the KE of a 60-kg runner who covers 400 m in 45s at constant speed.

**Science**

a 2000-kg car traveling at 8 m/s strikes a stationary car whose mass is the same. The two cars stick together after the crash. What is their speed just afterward?

**math**

Radical /12

**Geometry**

what are the next to terms in the pattern 7, 2, 5, -3, 8, -11

**Geometry**

what are the next to terms in the pattern 7, 2, 5, -3, 8, -11

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