Friday

July 25, 2014

July 25, 2014

Total # Posts: 436

**physics**

a man throws his keys up to his wife 4.00m above. the wife catches the keys 1.50s later. with what initial velocity were the keys thrown?

**physics**

a roller coaster weighing 500kg starts at rest from a point of 45m above the ground. what is its speed when it reaches point b at ground level?

**physics**

thank you

**physics**

so mr.pursley the velocity doesn't matter for the question I asked?

**physics**

so the velocity doesn't matter for the question I

**physics**

what would the tension in a string be if the block being suspended by the string had a mass of 5.0kg the acceleration was 2.2m/s^2 and the velocity was 5.2m/s

**physics**

a force F is applied in horizontal to a 10kg block. the block moves at a constant speed 2m/s across a horizontal surface. the coefficient of kinetic friction between the block and the surface is 0.5. the work done by the force F in 1.5 minutes is?

**physics**

a force of 20N compresses a spring with a spring constant of 50N/m. how much energy is stored in the spring?

**physics**

pilots can survive radial acceleration up to 9g(88m/s^2). can a fighter pilot flying at a constant speed of 500m/s and in a circle that has a diameter of 8800 m survive to tell about his experience?

**physics**

a stone is thrown straight up from a 50m high building and hits the ground at a speed of 37.1m/s. What is the initial velocity and what is the maximum height above the ground that the stone reaches?

**physics**

a man stands on the roof of a 15.0m tall building and throws a rock with a velocity of magnitude 30.0m/s at an angle of 33 degrees above the horizontal. ignoring resistance calculate the horizontal distance from the base of the building to the point where the rock strikes the ...

**physics**

a long jumper takes off at an angle of 20 degrees with the horizontal and reaches a maximum height of 0.55 meters at mid- flight. how far did she jump?

**Math**

Your school is planning to put an aquarium with 30 fish in it in the main lobby. To accommodate this number of fish, the aquarium should be between 50 and 60 cubic feet of water. To help reduce costs, the surface area of the aquarium should be no more than 80 feet square. Do n...

**Buying A Car**

Which one of these statements is true about a "bumper-to-bumper" warranty. A. Normal wear and tear is NOT covered by the warranty. B. All expenses except gasoline and routine oil changes are covered by the warranty. C. Every part and system is covered without excepti...

**Duration**

Find the duration of a 6% coupon bond making annual coupon payments if it has three years until maturity and a yield to maturity of 6.5%. What is the duration if the yield to maturity is 10.5%?

**Finance**

A bond currently sells for $1,120, which gives it a yield to maturity of 5%. Suppose that if the yield increases by 25 basis points, the price of the bond falls to $1,070. What is the duration of this bond?

**Algebra- help please!!!!**

Please help Steve! This is due tomorrow and I have no idea how to figure this out!!!

**Algebra**

Nope.....I checked and it isn't a typo.

**Algebra**

Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they so,d 1/4 of what was left and 3/4 o...

**Chemistry**

How many grams of a 17.7% potassium sulfate solution would contain 419.9 g potassium sulfate? Answer in units of g

**Chemistry**

Write the equation for the dissolution of NH4NO3 in water. If 5.95 mol of NH4NO3 are dissolved, how many total moles of ions are produced? Answer in units of mol

**Math**

Sixty people, half of whom were females, were asked if they liked yogurt. Thirty-two of the people, including two-fifths of all of the males, said that they did like yogurt. How many of the females didnt like yogurt?

**Math**

A clock has a minute hand10 inches long. What is the distance traveled by the tip of the minute hand in 1 day?

**Math**

At one point on a mountain road, the elevation is 1250 meters. Three kilometers up the road, the elevation is 1610 meters. What is the average change in elevation for each hundred meters on this section of the road?

**Math**

I am thinking of a number. If I add a half, fourth, and a ninth of it together, I get a total of 62. What's my number?

**Math**

What is the weight of the snow I have to shovel off our sidewalk after a 6 inch snowfall ? Our sidewalk is 150 feet long and 3 feet wide.

**Math**

The sum of two fractions is 1 1/2. Their difference is 5/12. What are the fractions?

**Chemistry**

The half-life for the first-order conversion of A to B is 56.5 hours. How long does it take for the concentration of A to decrease to 10.0% of its original amount? Our professor has given us the answer - 188hr but I am not entirely sure how he got it.

**Math**

Alex makes a 14 inch diameter pizza, which includes a 1 inch crust. Donald wants to make a 10 inch diameter pizza with the same percent of crust as Alex's pizza. To the nearest tenth of an inch, approximately how wide will the crust be on Donald's pizza?

**Geometry**

How many distinct isosceles triangles exist with a perimeter of 99 inches and side lengths that are positive while numbers?

**Math **

Fred is closing a bank account t and wants to distribute the money among his grandchildren by giving each of them $20. To do this Fred needs an additional $62 . Instead he gave each grandchild $17 and had $7 left over. How many grandchildren does Fred have? How much money did ...

**Math**

A box contains 20 red balls and 40 green balls . Four balls are randomly selected from the box without replacement. What is the probability of selecting a red ball followed by a green ball and then another red ball followed by a green ball?

**Math**

Loretta's age now is twice John's age five years ago. In three years the sum of John's and Loretta's ages will be 50. How old are Loretta and John today?

**Math**

What is the smallest counting number n so that 375n is a perfect square?

**Math**

Coins numbered 1-200 are placed in a hat. What is the probability that a coin chosen at random out of the hat is a multiple of 6 or 9?

**Math**

What is the sum of the prime factors of 1260? For example, the sum of the prime factors of 20 is 9.

**Math**

How many terms are in the following sequence that follows? 3,7,11,....,439

**Math**

A car rental agency charges $37.50 per day and $0.23 per mile or fraction thereof to rent a car. How many miles can be driven in a day before the charge reaches $100.00?

**Math**

A high rise apartment building has four elevators. Each elevator travels upward at an average rate of 18 feet per second. The elevator travels 12 feet from one floor to the next. Suppose you get on the elevator on the first floor and travel straight to the fiftieth floor witho...

**Math**

Which set of factors of the number 420 has the least possible sum? Which set of factors of the. Number 420 has the greatest possible sum? Be sure that the two sets of factors both have a product of 420

**Math **

Nine consecutive odd whole numbers sum to 243. Find the sum if the first and last whole numbers in this nine-addend ser.

**Math**

How many numbers between 9 and 100 exist such that the product of the digits is treaters than the actual number?

**Math**

Find the whole number that meets all the following conditions 1. It is greater than 100 2. It is less than 200 3. It is 20 greater when rounded to the nearest 100 than when it is rounded to the nearest 10

**Math**

Find the greatest ten digit positive multiple of 12 using each digit once and only once.

**Math**

Find the next three values in the following sequence of numbers. -1,0,1,0,1,2,3,6,11,20,37

**Math **

Find the greatest ten digit positive multiple of 12 using each digit once and only once .

**Math**

Find six consecutive multiples of 6 whose sum is the least common multiple of 13 and 18.

**Math**

If f(x) = x^4 -5x^2 +4, for what values of x is the absolute value of f(x) not differentiable?

**Math**

The ratio of cats to dogs is 2:1 and the ratio of dogs to parrots is 15:2. In addition, the ratio of parrots to snakes is 3:1 and the ratio of snakes to turtles is 6:7. What is the ratio of cats to turtles?

**Math**

Four hoses are filling a pool. The first hose alone would fill the pool in 4 hours while the second hose takes 6 hours. The third hose and the fourth hose each take 8 hours to fill the pool. How long would it take to fill the pool if all 4hoses are turned on?

**Math**

Warren is riding his bike at 15 mph on a road adjacent to railroad tracks. A train traveling at 90mph in the opposite direction as Warren, takes 20 seconds to pass him. How long is the train?

**Math**

A projectile is launched from a cannon that sits 4 feet off the ground at an initial velocity of 120 feet/sec. Find the impact velocity.

**English**

Chose and drank?

**English**

Which word fits? Have officials chose/chosen the city for the next Olympics? The Greek gods and goddesses drank/drunk nectar.

**Math (ms sue or Kuai pleas e help)**

The "4" ranch is 7680 acres. It is a rectangle that is a mile longer than it is wide. What are the dimensions of the ranch?

**Math**

A ranch is 7680 acres. It is a rectangle that is a mile longer than it is wide. What are the dimensions of the ranch?

**Math**

A ball bounces 0.7 of the distance it is dropped. How many bounces will the ball make from a height of 1 meter if a bounce of less than 1 centimeter is to be ignored?

**Math**

Also, how do I find the maximum height?

**Math**

A projectile is launched from a cannon that sits 4 feet off the ground at an initial velocity of 120 ft/sec. Find the position function and how long is it before the projectile hits the ground? I got -16t^2 +120t+4 for my position function, but I'm not sure how to find the...

**Calculus**

Find two positive numbers that satisfy the requirements: "The product is 147 and the sum of the first number plus three times the second number is a minimum."

**Math**

Nevermind; I think I've got it

**Math **

How to find the y-intercept of this function: (7-3x)/(x-2)

**chemistry**

When a photon of light hits the surface of a metal, a photoelectron may be emitted. Some of the photon's energy is required to free the electron from the surface. The remaining energy becomes the kinetic energy of the photoelectron. The minimum energy for the emission of a...

**Chemisrty**

Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom of this elelemt have? D. How many valence el...

**Physics**

A 0.245kg ball is thrown straight up from 2.20m above the ground. Its initial vertical speed is 8.80m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.

**Physics**

A constant force of 35.9 N, directed at 28.7o from horizontal, pulls a mass of 14.7 kg horizontally a distance of 3.41 m. Calculate the work done by the force.

**Physics**

A constant force of 35.9 N, directed at 28.7o from horizontal, pulls a mass of 14.7 kg horizontally a distance of 3.41 m. Calculate the work done by the force.

**math**

We thank you Ms. Sue for your response. Unfortunately, this appears to be an equation that my daughter, 4th grade level, (nor I for that matter) are able to decifer to even understand how to answer the problem. Is it possible for you to verbally explain how Kriten would solve ...

**math**

Juan, Steve, and Gabriella bought a total of 30 markers at an art store. Juan bought 3 more markers than Steve. Gabriella bought 7 times as many markers as Steve. How many markers did each buy.

**Chem**

What volume of 2.50 x 10-4 M CV+ solution should be diluted to 10.0 mL to prepare a 7.50 x 10-5 M CV+ solution Answer 1.00 mL 3.00 mL 5.00 mL 7.50 mL 33.3 mL

**Math**

Maria rode her bicycle for 33 minutes to get to her grandmothers house. She stopped for a snack when she was 5/11 of the way there. How many minutes did she rode her ride before stopping for a snack

**Math - probability!**

a club has 15 members plus their president. a 5 person committee is to be formed. A) how many committees include the president? B) how many committees dont include the president? C) how many committees altogether?

**English (Ms.Sue please answer) I did some work own**

go on sparknotes...u will find out...this is about the hobbit...did u read the book or watch the movie...if u have a better idea please let me know. Thanks

**English (Ms.Sue please answer) I did some work own**

Ok so Im thinking I will use the theme of heroism (which is the human condition) My arguments would be character, social position and ancestry This is a book and movie comparative essay... I have to do a comparative essay on a book and a film (I chose The Hobbit) .This is a co...

**English to Writeacher**

But I realized tht revenge wouldnt work..after her questions thats y

**English to Writeacher**

Writeacher, please help me with my thesis!!:'( its due tmw...i dont know wat theme i should do and wat my arguments would be... here is the plot: Gandalf tricks Bilbo into hosting a party for Thorin and his band of dwarves, who sing of reclaiming the Lonely Mountain and it...

**English to Writeacher**

Yes, I know how to write a thesis statement and how a comparison essay goes.. But I already have my info: This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the HUMAN CONDITION. So my theme is revenge and the ar...

**English**

Yes, I know how to write a thesis statement and how a comparison essay goes.. But I already have my info: This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the HUMAN CONDITION. So my theme is revenge and the ar...

**English**

Yes, I know how to write a thesis statement and how a comparison essay goes.. But I already have my info: This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the HUMAN CONDITION. So my theme is revenge and the ar...

**English**

Oh ok thankyou so much:) I greatly appreciate it!

**English**

Ok so I have to do a comparative essay on a book and a film (I chose The Hobbit) .This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the human condition. So my theme is revenge and the arguments are race, herois...

**English**

Ok so I have to do a comparative essay on a book and a film (I chose The Hobbit) .This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the human condition. So my theme is revenge and the arguments are race, herois...

**English**

Are adventure, revenge, Heroism and prejudice all human conditions?

**physics**

As a train moves away from you, the frequency of its whistle is determined to be 475Hz. If the actual frequency was 500 Hz and the speed of sound in air is 350m/s, what is the Train's speed? answer is 18.4m/s please show and explain steps

**physics**

which one

**English**

I have to make a thesis statement about a book and a movie. I need help creating the thesis. I am doing the hobbit. This is a comparative essay with the topic of human development. Thanks..Please help me out..

**Grd 12 U English**

I already tried sparknotes and everyother website I thought of miss...:(unfortunately

**Grd 12 U English**

I am the discussion director for my group. I have to grab 4 reallyyy good discussion questions for the book The Kite Runner. I already found one good question, I need the other 3. It has to be from chapter 1-3 PLEASE help me out, i'm so stuck, honestly I really want my gro...

**math**

can u do a more simpler way...we never learnt log yet..

**math**

A researchr assistant made 160mg of a radioactive, and found that there was only 20mg left after 45hours. a) What is the half-life of this substance? b) Write a function to represent the amount of substance left after x hours c) If the researcher kew he needed 100mg of the sam...

**Math**

thanks but i recieved this after the exam

**Math**

whoops sorry this is chemistry

**Math**

A commercial refrigerator unit accidentally releases 12.5 L of ammonia gas at SATP. Determine the mass and number of molecules of ammonia gas released. Please if possible show the steps because I have an exam in an hour and I was trying this question and Im clueless. Please he...

**art history**

According to the lesson, most African art was created for all of these purposes EXCEPT:

**AP Chem**

Calculate the pH after 0.010 mol gaseous HCl is added to 250.0 mL of each of the following buffered solutions: a. .050 M NH3/.15 M NH4Cl b. .5 M NH3/ 1.5 M NH4Cl

**Math**

$29 29x2=58 58-30=28 28x3=84 84-54=30 30x4=120 120-72=48

**Chemistry**

Determine the percent Composition of each element in phenyl sulfide: (C6H5)2S. Please show work in order to walk me through this.

**Chemistry**

If Gold sells for $1200.00 an ounce, how many atoms of gold can you buy for a penny? Please, Show work.

**Chemistry**

A cat is about 10.0% Carbon. My cat weighs about two kilograms. How many moles of Carbon are in my cat?

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