Wednesday

September 2, 2015
**Physics**

The university skydiving club has asked you to plan a stunt for an air show. In this stunt, two skydivers will step out of opposite sides of a stationary hot air balloon 2,500m above the ground. the second skydiver will leave the ballon 20 seconds after the first skydiver but ...
*Monday, April 6, 2015 by Jaime*

**mastering quantum mechanics**

Problem 4: Variational principle and bounds (3 parts, 30 points) PART A (15 points possible) Consider a particle of mass m in a box of size L so the wave function vanishes at x=±L/2. Find an upper bound E∗ on the ground state energy Egs using a simple trial ...
*Monday, April 6, 2015 by JuanPro*

**physics**

A car speeds up uniformly from rest so that it has a velocity of 30ms -1 after 20 second.How far does the car travel in first 10 seconds?
*Monday, April 6, 2015 by Michelle*

**physics**

A car speeds up uniformly from rest so that it has velocity of 30 ms-1 after 20 seconds. Question/ How far does the car travel in first 10 seconds?
*Monday, April 6, 2015 by Michelle*

**physics**

A car speeds up uniformly from rest so that it has a velocity of 30 ms-1 after 20 second. How far does the car travel in first 10 second?
*Monday, April 6, 2015 by Michelle*

**Physics**

Could someone show me how to work this? It's for a study guide I'm practicing, and I just can't seem to get the correct answer. The position of a 0.63 kg object attached to a spring is described by [x = (1.09 m) cos(3.11πt)] a) Find the object’s position ...
*Monday, April 6, 2015 by James*

**Physics**

The university skydiving club has asked you to plan a stunt for an air show. In this stunt, two skydivers will step out of opposite sides of a stationary hot air balloon 2,500m above the ground. the second skydiver will leave the ballon 20 seconds after the first skydiver but ...
*Sunday, April 5, 2015 by Tony*

**physics **

A 2.0-gram bullet is shot into a tree stump. It enters at a speed of 3.00 x 104 cm/s and comes to rest after having penetrated 0.05 m in to the stump. What was the average force during the impact? Show all calculations leading to an answer. KE 1= 1/2*0.002kg*300^2m/s=30 j KE2=...
*Sunday, April 5, 2015 by Ciara*

**PHYSICS**

A net force of 47.0 N acts on a 53.0 kg body initially at rest. Compute the work (in joules) done by the force in the first second of time. Not sure where to start at all :(
*Sunday, April 5, 2015 by Beckles*

**Writing Skills, Part 3**

6. You have found an article in the Readers' Guide that you want to locate. What information would be least important in finding it? A. Subject heading B. Volume and page numbers C. Author's name D. Title of the article Student Answer: B Answer: Incorrect Reference: 7...
*Sunday, April 5, 2015 by yes help me I'm an idiot*

**chemistry**

Why is the second derivative of a titration curve more accurate method to determine endpoints and equivalence points than the first derivative?
*Sunday, April 5, 2015 by tevon*

**Math **

On Joe Martin's graduation from college, Joe's uncle promised him a gift of $12000 in cash or $900 every quarter for the next 4 years after graduation. If money could be invested at 8% compounded quarterly, which offer is better for Joe? I have done this problem but I ...
*Sunday, April 5, 2015 by Maggie Hopkins*

**Probability**

Let Θ1 and Θ2 be some unobserved Bernoulli random variables and let X be an observation. Conditional on X=x, the posterior joint PMF of Θ1 and Θ2 is given by pΘ1,Θ2∣X(θ1,θ2∣x)= 0.26, if θ1=0,θ2=0, 0.26, if &#...
*Sunday, April 5, 2015 by SPS*

**chemistry ap**

Assume that 29.7 g of Al react with HCl according to the equation Al(s) + HCl(aq) −→ AlCl3(aq) + H2(g) at STP. How many moles of Al react? Remember to balance the equation first. Answer in units of mol. How many moles of H2 are produced? Answer in units of mol. How...
*Friday, April 3, 2015 by chem*

**pre calculus**

the downhill ski club is organizing a ski trip. group tickets for the ski trip are priced at 20 for the first 100 skiers and a discount of 5.00 for each of the skiers over 100. a) write a formula to find the average cost of x skiers. b)write a formula to find the average cost ...
*Friday, April 3, 2015 by syed*

**American History**

American soldiers first faced guerilla tactics during which war? A. Philippine-American War B. World War II C. Vietnam War D. Korean War I believe its A
*Friday, April 3, 2015 by Dave*

**pre calculus**

the downhill ski club is organizing a ski trip. group tickets for the ski trip are priced at 20 for the first 100 skiers and a discount of 5.00 for each of the skiers over 100. a) write a formula to find the average cost of x skiers. b)write a formula to find the average cost ...
*Friday, April 3, 2015 by syed*

**Algebra**

Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?
*Friday, April 3, 2015 by Algebra*

**Physics**

Hi, I've been stuck on this for days! I'd love if I can get some help. Two unfortunate climbers, roped together, are sliding freely down an icy mountainside. The upper climber (mass 80kg ) is on a slope at 16∘ to the horizontal, but the lower climber (mass 65kg...
*Friday, April 3, 2015 by Tommy*

**math**

Beth & J had $2880. Beth gave 1/4 of her money to J. Then J gave 1/3 of the total amount she had to Beth. In the end, both girls had same amount of money. 1 - how much money did beth have at first? 2- how much money did J had at first?
*Thursday, April 2, 2015 by Bob-Bob*

**math**

Sam and Jill had 576 stamps in all. Sam gave 1/7 of his stamps to Jill. Then Jill gave 1/4 of the total number of stamps she now had to Sam. In the end, both of them had the same number of stamps. What was the difference in the number of stamps they each had at first?
*Thursday, April 2, 2015 by Bob*

**math**

Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?
*Thursday, April 2, 2015 by Bob*

**English**

1. In formal writing, abbreviations ________. A. can be used sparingly B. should never be used C. can be used depending on the instructor's preference D. can be used depending on the discipline 2. A paragraph contrasting two teachers in which the first half of the ...
*Thursday, April 2, 2015 by Jay*

**Ethics In Tech**

The Census Bureau has not always kept confidential the information it has collected. According to the textbook, this became apparent: A. during the Civil War. B. after the attack on Pearl Harbor. C. during the Vietnam War. D. during the first Gulf War. is it A
*Thursday, April 2, 2015 by Amy*

**calculus**

1 pt) Coroners estimate time of death using the rule of thumb that a body cools about 2 degrees F during the first hour after death and about 1 degree F for each additional hour. Assuming an air temperature of 68 degrees F and a living body temperature of 98.6 degrees F, the ...
*Wednesday, April 1, 2015 by emily*

**History**

6. Which of the following Civil War era presidential orders directly impacted 13th Amendment A.homestead Act B.Wilmot Proviso C.Lecompton Constitution D.Emancipation Proclamation D? 7.Why did lincoln exclude west virginia from the effects of Emancipation Proclamation? A.West ...
*Wednesday, April 1, 2015 by M*

**prob. & stat.**

A pond is freshly stocked with 15 brown trout and 9 lake trout. The first fisherman in the area catches and releases a trout. He catches another trout a while later. What is the probability that the fisherman caught brown trout each time?
*Wednesday, April 1, 2015 by sweet12*

**maths please help and explain**

1.simplify with the aid of a calculator Keys: " =degrees sin21"40^1+cos23"50^1
*Wednesday, April 1, 2015 by Anonymous*

**Math**

Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
*Wednesday, April 1, 2015 by Tony*

**Geometry **

The lengths of the sides of a triangle are 6 cm, 7 cm and 9 cm. In a similar triangle whose perimeter is 110 cm, what is the length of the longest side, in centimeters? i know that the first triangle's perimeter is 22, but i'm not sure how this will help me.
*Tuesday, March 31, 2015 by Gem*

**Physics**

A uniform cylindrical spool of mass M and radius R unwinds an essentially massless rope under the weight of a mass m. If R = 12 cm, M = 400 gm and m = 50 gm, find the speed of m after it has descended 50 cm starting from rest. Solve the problem twice: once using Newton's ...
*Tuesday, March 31, 2015 by Nora*

**english**

can you please tell me if i'm correct or not? write A if the sentence is active or P if it is passive. 1. max and his uncle towed the car to a downtown garage. P 2. lightning hit our house during last night's storm. P 3. the opening remarks were made by the president ...
*Tuesday, March 31, 2015 by d*

**English **

I need help answering some To Kill A Mockingbird questions 1.When Scout is talking about the Ewells' living conditions what is her tone? Is it sympathetic or disparaging or objective? I think it's sympathetic 2. When the story is talking about Mayella 's red ...
*Tuesday, March 31, 2015 by Jasmine*

**math**

I am having problems with this problem.In the mythical kingdom of Permutatus, wizards have special 2-digit license plats, The first digit is greater than 6, and the second digit is odd. The two digits cannot be the same, How many different license plates are possible.
*Monday, March 30, 2015 by susie*

**7th grade math (probability)**

I'm not sure how to answer this: 3. THe 7th grade wants to have a back-up representative just in case the first teacher is absent. Based on the same scenario as #2, if a math teacher was chosen to be the 7th grade representative, what is the probablility that the back-up ...
*Monday, March 30, 2015 by Alexis*

**child day care**

. In the childcare field, the main purpose of a Quality Rating and Improvement System (QRIS) is to A. improve and standardize the quality of care in all facilities in the state. B. lower the cost of childcare. C. make it easier for parents to find childcare. D. make childcare ...
*Monday, March 30, 2015 by Tinkk*

**social studies 8th**

1. The “separate-but-equal” doctrine comes from which of the following? (1 point) Jim Crow laws the Plessy v. Ferguson decision*** the Cumming v. Richmond Board of Education decision anti-Semitism 2. John Hope became the first African American president of which ...
*Monday, March 30, 2015 by XenaGonzalez*

**math**

A string of decorative lights is 28 feet long. The first light on the string is 16 inches from the plug. If the lights on the string are spaced 4 inches apart, how many lights are there on the string?
*Monday, March 30, 2015 by Derick*

**Algebra**

Two hot air ballons are in flight above a field. The first balloon is 30 meters above ground and rising 25 meters per minute. The second ballon is 300 meters above ground and descending 20 meters per minute. When will the two balloons be at the same altitude? and what would be...
*Monday, March 30, 2015 by Nya*

**Chem**

When an ion-selective electrode for sulfate was immersed in 0.0300 M sodium sulfate, the measured potential was 0.0460 V. What is the concentration of sulfate when the potential is 0.0610 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C...
*Sunday, March 29, 2015 by Cassie*

**Pschology 202**

1. The three broad categories, also called domains, of adult development are: physical, cognitive, and sexual. (Points : 1) True False Question 2.2. Temperament is a term that relates to personality and emotional development. (Points : 1) True False Question 3.3. True or False...
*Sunday, March 29, 2015 by Sharnii23*

**Computer science C++**

A problem in timber management is to determine how much of an area to leave uncut so that the harvested area is reforested in a certain period. It is assumed the reforestation takes place at a known rate per year, depending on climate and soil conditions. A reforestation ...
*Sunday, March 29, 2015 by Computer Science*

**math**

1. Shawn Fitzgerald finds a suitable property and agrees upon a selling price of $137,900. The mortgage company requires a 20% down payment and Shawn chooses to finance the property for 30 years at 8%. What is the total amount of interest charged, rounded to the nearest whole ...
*Sunday, March 29, 2015 by Nadia*

**Calculus 2 - Series**

I am so confused on how to do series problems...especially these. How can you tell the pattern and determining the formula for them? Can someone please help? 26) Write the first five terms of the sequence {an} whose nth term is given. an = (n + 3)/(2n − 1) a1 = ? a2 = ? ...
*Sunday, March 29, 2015 by Helen*

**math**

Problem: A riding stable manager is planning a nutritional diet for 9 horses. The manager finds the table below in a guide about horse health. The cost of 1000 Calories of horse feed is $0.25. What is the cost per day to feed 9 horses? (Hint: First, try writing an expression ...
*Sunday, March 29, 2015 by Anonymous*

**social studies**

2.in what industry did the industrial revolution begin? a)coal mining b)electrical production** c)steel manufacturing d)textile manufacturing 3.Which renaissance scientist first proposed the heliocentric theory? a)Francis Bacon b)Nicolaus Copernicus c)Galileo Galilei*** d)...
*Sunday, March 29, 2015 by #ASAP*

**social studies**

1.which of the following improved during the industrial revolution? a)treatment of disease*** b)pollution in cities c)child labor conditions d)housing for the poor 2.in what industry did the industrial revolution begin? a)coal mining b)electrical production c)steel ...
*Sunday, March 29, 2015 by #ASAP*

**social studies**

1.What role did Marco Polo play in the age of exploration? a)He found the first sea route to Asia. b)He conquered native peoples in the Americas. c)He invented new tools and methods of navigation. d)He increased European interest in foreign lands idk i need help.
*Sunday, March 29, 2015 by #HOMEWORK*

**statistics**

If I selected one player at random what would be the probability of an NBA player in the Eastern conference being less than 6 feet tall? First calculate the z-score and then use the standard normal table to find the probability.
*Saturday, March 28, 2015 by Anonymous*

**Math questions**

1. Shawn Fitzgerald finds a suitable property and agrees upon a selling price of $137,900. The mortgage company requires a 20% down payment and Shawn chooses to finance the property for 30 years at 8%. What is the total amount of interest charged, rounded to the nearest whole ...
*Saturday, March 28, 2015 by Nadia*

**Math**

The first term of geometric is 124.the sum of infinity is 64.find the common ratio
*Saturday, March 28, 2015 by Ludere tshifularo*

**P H Y S I C S **

A lumberjack (mass = 98.3 kg) is standing at rest on one end of a floating log (mass = 258 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +3.69 m/s relative to the shore, and then hops onto an identical floating log that is ...
*Friday, March 27, 2015 by Physics2hard4me*

**Civics**

7. The original purpose of the Constitutional Convention of 1787 was to A. develop the principle of states' rights. B. solve the slavery issue. C. revise the Articles of Confederation. D. elect the first president of the United States...
*Friday, March 27, 2015 by Sarah *

**us history**

Which of these statements best compares the economic development of the North and South during the first half of the 19th century? More factories and railroad lines were built in the North than in the South. The North developed more trade connections with Europe than the South...
*Friday, March 27, 2015 by Oscar*

**American History**

Among instances of corporate malfeasance in the early twenty-first century, the _______ scandal was the most shocking and economically damaging for employees and shareholders. A. American Tobacco B. Tyco International C. Enron D. WorldCom I have looked all of the place for ...
*Friday, March 27, 2015 by Alana*

**Civics**

2. The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twentieth B. Twenty-first C. Nineteenth D. Twenty-second B?
*Friday, March 27, 2015 by Sarah *

**american Literature**

(1) "It's positively cruel!" pouted Jennie Allen, one of a group of girls occupying a garden bench in the ample grounds of Miss Stearne's School for Girls, at Beverly. "It's worse than that; it's insulting," declared Mable Westervelt, her ...
*Friday, March 27, 2015 by jimm*

**statistics**

Consider the test of hypothesis for the equality of two population means. The sample data from the first population is: n = 10, x-bar = 52.4, s = 5. The sample data from the second population is: n = 8, x-bar = 48.2, s = 6. Both variables are normally distributed and the ...
*Friday, March 27, 2015 by Anonymous*

**math**

A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknight?” The mean response of the 463 students was = 118 minutes. Suppose that we know that the study time follows a Normal distribution with ...
*Friday, March 27, 2015 by jordon*

**Math-Lit 143**

Suppose you buy a two-year CD for $50,000 from First Command Bank. Use the APY from the First Command Bank table to determine how much interest it earns for you at maturity.
*Thursday, March 26, 2015 by Jade*

**chemistry**

What is the theoretical yield of H[2]O (in grams) if 8.3 mol H[2]S were consumed in the above reaction? If 137.1g of water was actually collected after the reaction, what is the percent yield? I have no idea to do this problem. I am not good in math at all and currently taking...
*Thursday, March 26, 2015 by Ty*

**grammar**

if there is a split quotation what do i do if the first part is a question but the other half is not do I put a question mark?
*Thursday, March 26, 2015 by ?*

**Business **

14. When you first started your new business, you were so excited about the large volume of orders you had. One year later, you find that your orders are less than half of what they were in the beginning. What is the most probably cause of this decrease in order? A. You'...
*Thursday, March 26, 2015 by Jay *

**Math**

Samantha has 2 meters of ribbon for wrapping packages She uses 15 centimeters of ribbon on first package how much ribbon is left
*Thursday, March 26, 2015 by Anonymous*

**business**

1. What percentage of new businesses fail in the first year? A. 40 percent B. 60 percent C. 25 percent D. 75 percent I think it's A. But not sure
*Wednesday, March 25, 2015 by Jay *

**Health**

What is the first activity of the digestive system? A. Digestion B. Ingestion C. Movement D. Absorption i pick D.
*Wednesday, March 25, 2015 by Dalton Help Ms.Sue, Writeacher, Reed!!*

**History Help Please**

1. Which of the following was an effect of the assembly line? A) it made workers want to return farms B) it made clothing more expensive to produce C) it increased demands for worker compensation D) it drove down the cost of clothing production *** 2. Who introduced the idea ...
*Wednesday, March 25, 2015 by anonymous*

**history **

which of the following was an effect of the assembly line? A) it made workers want to return farms B) it made clothing more expensive to produce C) it increased demands for worker compensation D) it drove down the cost of clothing production Who introduced the idea of ...
*Wednesday, March 25, 2015 by emma*

**math,Computer**

Let A and B be two data lists. Concatenation of the list A and another list B is defined to be equal to B, if A is null; and is defined to be equal to concatenation of head of A with the concatenation of tail of A and B, otherwise (where head of A is the first element of A, ...
*Wednesday, March 25, 2015 by Ali*

**physics**

A mother rocket fired from the ground last year’s eve ejects 25% of its mass 2.0 at the at the rate if so m/s in the first second of its flight. Find the initial acceleration of the mother rocket.
*Wednesday, March 25, 2015 by ella*

**physics**

A mother rocket fired from the ground last year’s eve ejects 25% of its mass at the at the rate if so m/s in the first second of its flight. Find the initial acceleration of the mother rocket.
*Wednesday, March 25, 2015 by ella*

**chemistry **

If it takes 30 seconds for a reactant concentration to decrease from 1.0 M to 0.5 M in a first-order chemical reaction, then what is the rate constant for the reaction? A. 43 s–1 B. 0.046 s–1 C. 0.023 s–1 D. 0.033 s–1
*Wednesday, March 25, 2015 by Cortney*

**physics**

Starting from home, you bicycle 22km north in 2.3h and then turn around and pedal straight home in 1.3h . What are your (a) displacement at the end of the first 2.3h , (b) average velocity over the first 2.3h , (c) average velocity for the homeward leg of the trip, (d) ...
*Wednesday, March 25, 2015 by tendi*

**math**

A rope is 15 feet long. Cut it into 3 pieces. The first piece was 3.57 feet longer than the second piece. The third piece was 2.97 feet longer than the second piece. How long was the third piece of rope?
*Tuesday, March 24, 2015 by Carol R*

**English (writing)**

Hello! I have to write an essay a critical paragraph/essay tommorrow on the following topic: In the first half of the novel, the author uses the idea of gender identity and societal expectations. In what way does the author use the character of Scout to comment on this topic...
*Tuesday, March 24, 2015 by Lucina*

**Math**

given a standard deck of 52 cards, 3 cards are dealt. If each card is replaced in the deck (and the deck is well shuffled) after being dealt answer the questions below. 1. If the first two cards are queens, what is the probability that you will be dealt three queens? 2/50 = 1/...
*Tuesday, March 24, 2015 by Austin*

**Math**

1. When their child was born, Elaine and Mike Porter deposited $5,000 in a savings account. The money ears interest at 6 percent compounded quarterly. How much will the account be worth when their child celebrates her second birthday? My answer= $5,632.46 2. Asia Desai ...
*Tuesday, March 24, 2015 by kk*

**am i right? :/ ss**

1. Why did African American urban communities develop? (Choose all that apply.) (3 points) African Americans overcame legal limitations placed on them and found solidarity in city communities.**** African Americans were placed in urban communities against their choice. African...
*Tuesday, March 24, 2015 by Linda*

**Math Help!!!**

determine whether each sequence is arithmetic or geometric. find the next three terms. 1. 14,19,24,29.... geometric, 34,39,44 arithmetic,32,36,41 arithmetic 34,39,44**** the sequence is nether geometric nor arithmetic 2. -4,8,-16,32.... arithmetic. 64,128,256 geometric -64,128...
*Tuesday, March 24, 2015 by help asap*

**Social Studies 8th thank you**

1. The Bourbon Democrats would have been likely to support which of the following? (Choose all that apply.) (3 points) lower taxes*** less government spending growth of industry*** African American rights*** 2. Unhappy farmers formed what organization? (1 point) Farmers’ ...
*Tuesday, March 24, 2015 by Linda*

**Englisg**

1) Using a single formatting _____ helps to make reading researched information easier;it lets the reader know what to expect. A. Citation B. Text C. Style D. Website My answer was B I got it wrong 2) when creating a writing plan,which of the following should come first? A. A ...
*Tuesday, March 24, 2015 by Justin Please Check*

**math**

draw two figures such that the first one has a greater perimeter but smallaer area than the second
*Monday, March 23, 2015 by Cox*

**Writing**

Please help! 1) Using a single formatting _____ helps to make reading researched information easier;it lets the reader know what to expect. A. Citation B. Text C. Style D. Website My answer was B I got it wrong 2) when creating a writing plan,which of the following should come...
*Monday, March 23, 2015 by Becca please read *

**English**

As a general rule, where in your essay is it best to place your thesis statement? A. In the first, introductory paragraph of the essay B. Anywhere at all, because the best thesis statement is implied, not specified C. In the second or third paragraph of the body of the essay D...
*Monday, March 23, 2015 by Jesica*

**English**

When using pronouns such as you, your, and yours, you're writing in which point of view? A. First-person B. Compound-person C. Second-person D. Third-person my answer is c.
*Monday, March 23, 2015 by Jesica*

**Science Check Please Dr.Bob222**

I am sorry would..Hopefully this would make it easier 1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin * 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow...
*Monday, March 23, 2015 by YOLO*

**Physics **

A cart is moving at 1.01 m/s to the left has a head-on collision with a 28.5 kg cart traveling 2.04 m/s to the right. If the velocity to the first cart is 2.99 m/s to the right, what is its mass?
*Monday, March 23, 2015 by A*

**math**

I need help with this please it is urgent! : ok so 1 what are accomplishments of the Incas? 2 what did not contribute to the Spanish victory over the Aztecs. 3 the first European colonies to win independence4 in the Americas was, 4 two leaders that contuted to the independent ...
*Monday, March 23, 2015 by lexi*

**History**

Secession and War Quiz 1) The admission of Missouri as a slave state was controversial in the Senate because... :The Senate was pro-slavery. :It would create sectionalism. :It would upset the balance.*** :The Senate was anti-slavery. 2) The main topic of the Lincoln-Douglas ...
*Monday, March 23, 2015 by TheLOUDEST_0430*

**Science Check Please**

1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow and retain heat. boil constrict cool down expand 3. The...
*Monday, March 23, 2015 by YOLO*

**arithmetic**

second term is 8 and fourth term is 14.find the first term and the common difference.
*Monday, March 23, 2015 by kagai*

**Calculus **

a bottle of water with temperature 70 F is placed in a refrigerator with an internal temperature of 34 F. After 30 minutes, the temperature of the water has decreased to 52 F a)Give the cooling constant k(6th decimal place), and find an expression for the temperature of the ...
*Monday, March 23, 2015 by Ryan kustin*

**Physics **

The position of a mass oscillating on a spring is given by x = (7.0 cm) cos [2πt/(0.71 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x = -7.0 cm?
*Sunday, March 22, 2015 by Yadan Valeton*

**Math**

a plane traveling at 400 mph leaves the philadelphia airport at 1pm heading due east. two hours later a second plane traveling at 600 mph leaves the airport heading in the same direction. at what time does the second plane overtake the first?
*Sunday, March 22, 2015 by Mercedes*

**genetics**

The two most basic steps of DNA replication are: A.primase causes primer to bind the template and ligase copies the template. B.helicase unwinds the template and DNA polymerase binds the template. C.leading strand is copied first and lagging strand is copied second. D.the new ...
*Sunday, March 22, 2015 by Lucy*

**Statistics**

I have a bunch of questions to work on with this specific scenario but I was hoping someone can just help me get started on the first one because I'm having trouble getting started and I'll do the rest on my own.Thanks for any help! In a southern state, it was revealed...
*Sunday, March 22, 2015 by Emily*

**Criminal Justice**

. The __________ was the first governing document in the United States. A) U.S. Constitution B) second Constitution of Congress C) Twelve Tables D) Articles of Confederation
*Sunday, March 22, 2015 by Samantha*

**Math**

There are 47 students in the marching band. There are 5 students in te first row, and the rest are in equal rows of 6. How many students are in each of the 6 rows?
*Sunday, March 22, 2015 by Brianna*

**Math**

1. Rishi ram obtained an installment loan for $3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is $516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of $1500 at a 10 percent interest for 12 months. After 4 ...
*Sunday, March 22, 2015 by Kailey*

**English**

Suppose you're writing an essay about the process of changing a tire on your car. Which of the following is the best example of evidence to support your thesis? A. The first tires were bands of iron that were fitted by wheelwrights onto the rims of wooden cart and wagon ...
*Sunday, March 22, 2015 by Cristine*