Monday

April 27, 2015

April 27, 2015

**College Intermediate Algebra**

(x-3)^2 + [10x-30] +24
*Saturday, November 1, 2014 at 2:21pm*

**college algebra**

(x-3)^2+10x-30+24
*Saturday, November 1, 2014 at 2:17pm*

**College Intermediate Algebra **

The base of a triangle is terms of x is 2x+4x+2 and the height is x2+3x-4. What is the area of the triangle. I need to know am if I'm on the right track Area=1/2(2x+4x+2) (x2+3x-4)
*Saturday, November 1, 2014 at 12:00pm*

**sociology**

Mattie is a new sociology professor at the local college. During her first lecture, she noticed that some students were yawning. Based on her interpretation of the students yawning, Mattie has decided she is a boring teacher. This is an example of the process referred to as ...
*Friday, October 31, 2014 at 10:24pm*

**college algebra**

One isotope of holmium, 162Ho, has a half life of 22 minutes. The half-life of a second isotope, 164Ho, is 37 minutes. Starting with a sample containing equal amounts, find the ratio of the amounts of 162Ho to 164Ho after one hour. Rounded to three decimal
*Thursday, October 30, 2014 at 3:36pm*

**Career and education**

Describe the educational background/training necessary for that career. For example: 2-year college degree, Bachelor’s degree, graduate degree. What post-secondary routes could you take to get to that career? For example: attend a 2-year community college and transfer to ...
*Thursday, October 30, 2014 at 11:49am*

**College algebra **

Assume that the situation described can be modeled by a linear equation. Use the given information to find the y=mx+b form of the equation of the line. Suppose that a sales person observes that if an item is priced at $4 per item then 11 items are sold. If 9 items are sold for...
*Monday, October 27, 2014 at 7:22pm*

**College Algebra**

The average cost of a 1 minute commercial on a leading network channel was 146,000 in the fall of 1999. This was a 8% decrease from the the cost a year earlier. What was the cost of a 1 minute commercial on the channel in the fall of 1998?
*Monday, October 27, 2014 at 5:08pm*

**college algebra**

Using a phone card to make a long distance call costs a flat fee of $0.80 plus $0.33 per minute starting with the first minute. Write a function for the cost of a long distance call C(x) in terms of x minutes for this situation.
*Monday, October 27, 2014 at 2:16pm*

**College Algebra **

Suppose a major league baseball player has hit 7 home runs in the first 16 games, and he keeps up this pace throughout the 162-game season. (a) Express the number y of home runs in terms of the number x of games played. (b) How many home runs will the player hit for the season...
*Saturday, October 25, 2014 at 8:13pm*

**College Algebra **

Find an equation of the line that is tangent to the circle x^2 + y^2 = 25 at the point P(−3, −4).
*Saturday, October 25, 2014 at 8:12pm*

**college algebra**

There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year. N(t)= _____? (b) Using ...
*Saturday, October 25, 2014 at 12:05am*

**College physics **

When a 0.15 kg baseball is hit, it approaches the bat with a speed of 20 m/s and undergoes an elastic collision. (a) What is the impulse delivered to the bat by the ball? (b) If the baseball is in contact with the bat for 1.3 ms, what is the average force exerted by the bat on...
*Friday, October 24, 2014 at 10:30pm*

**college algebra**

A line has the equation y = 5x + 4.(a) This line has slope of ___________? (b) Any line parallel to this line has slope _________? (c) Any line perpendicular to this line has slope _______?
*Friday, October 24, 2014 at 8:45pm*

**college algebra**

There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year. N(t) = ________ (b) ...
*Friday, October 24, 2014 at 8:25pm*

**Theories and issues in working with school-age chi**

According to the National Center for Educational Statistics, which of the following is a false statement? A. Boys are more likely than girls to fail or drop out of school. B. When it comes to grades and homework, boys outperform girls in elementary, secondary, high school, ...
*Friday, October 24, 2014 at 4:00pm*

**English**

@ words : 1- curtail 2- devastate 3- digress 4- incentive 5- incorporate 6- indispensable 7- intermittent 8- rigor 9- squander 10-succumb Linda never had to work hard to make good grades in high school. But in college, where the ___(8)___ of course work were greater, she soon ...
*Thursday, October 23, 2014 at 11:31pm*

**Georgia Highlands college**

Estimate the average force that a baseball pitcher's hand exerts on a 0.145-kg baseball as he throws a 39-m/s pitch. Assume the pitcher accelerates the ball through a distance of 3.0 m, from behind his body to where the ball is released and ignore the air resistance.
*Thursday, October 23, 2014 at 5:13pm*

**statisitcs **

The combined math and verbal scores for students taking a national standardized examination for college admission is normally distributed with a mean of 560 and a standard deviation of 180. If a college requires a student to be in the top 40 % of students taking this test, ...
*Thursday, October 23, 2014 at 11:50am*

**math**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the student’s checking ...
*Thursday, October 23, 2014 at 9:43am*

**college algebra**

A rental company purchases a truck for $14,500. The truck requires an average cost of $6.75 per day in maintenance. (a) Find a linear function that expresses the total cost C of owning the truck after t days. C(t) = 1
*Wednesday, October 22, 2014 at 9:10pm*

**college algebra**

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...
*Wednesday, October 22, 2014 at 9:06pm*

**college algebra**

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min) Temperature (F) 15 2200...
*Wednesday, October 22, 2014 at 8:57pm*

**San Bernardino valley college**

The height of a triangle is 3 inches less than 5 times the length of its base. The area is 34 square inches. Find the length of the base and the height of the triangle.
*Wednesday, October 22, 2014 at 7:08pm*

**COLLEGE PHYSICS**

An internal explosion breaks an object, initially at rest, into two pieces. One piece (m1) is 1.5 times more massive than the other (m2). If 7500 J were released by the explosion, how much KE did each piece acquire?
*Wednesday, October 22, 2014 at 1:02pm*

**English**

Thank You Ms. Sue College English is harder then I thought and haven't had to ask just a few questions and I am running a 98 average
*Tuesday, October 21, 2014 at 7:56pm*

**college Genetics**

In tomatoes, tall(D) is dominant over dwarf (d) and smooth fruit(P) is dominant over pubescent fruit (p), which is covered with fine hairs. A farmer has two tall and smooth tomato plants, which we will call plant A and plant B. The farmer crosses plants A and B with the same ...
*Tuesday, October 21, 2014 at 1:41pm*

**College Pysics**

A sign hangs precariously from your prof's office door. Calculate the magnitude of the tension in string 1, if theta1 = 32.92o, theta2 = 54.99o, and the mass of the sign is 4.9 kg.
*Sunday, October 19, 2014 at 4:13pm*

**College Algebra 1**

What is the interval notation for -4(x+9)^3(x-11)^4(x+6)>0
*Sunday, October 19, 2014 at 3:49pm*

**college algebra**

find the zeros of f,f(x) = 2x2 + x − 21 x= ? larger value x= ? smaller value
*Sunday, October 19, 2014 at 2:16pm*

**college algeba**

Given r(x) = 6x x + 8 ,find the following. r(−1)= __ r(-3)= __ r(1/2)= __ r(0.1)=__ r(10,000)=___
*Sunday, October 19, 2014 at 2:13pm*

**college algebra**

A manufacturer produces a product at a cost of $26.80 per unit. The manufacturer has a fixed cost of $500.00 per day. Each unit retails for $37.00. Let x represent the number of units produced in a 5-day period. Write the profit P as a function of x. (Hint: The profit function...
*Sunday, October 19, 2014 at 2:05pm*

**college algebra**

A bus was purchased for $80,000. Assuming the bus depreciates at a rate of $6,000 per year (straight-line depreciation) for the first 10 years, write the value v of the bus as a function of the time t (measured in years) for 0 ¡Ü t ¡Ü 10. v(t)= _____
*Sunday, October 19, 2014 at 2:02pm*

**College Algebra (Word Problem)**

A rectangular eld is to be fenced o along the bank of a river; no fence is required along the bank of the river. The material for the fence costs 8 dollars per running foot for the two ends and 16 dollars per running foot for the side parallel to the river. If the area of...
*Sunday, October 19, 2014 at 1:38am*

**college chemistry**

When a 5.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.642 kJ·K–1, the temperature decreases by 0.340 K. Calculate the molar heat of solution of KCN.
*Saturday, October 18, 2014 at 7:25pm*

**PHYSICS 1301 (COLLEGE)**

As shown in the figure below, two masses m1 = 4.10 kg and m2 which has a mass 50.0% that of m1, are attached to a cord of negligible mass which passes over a frictionless pulley also of negligible mass. If m1 and m2 start from rest, after they have each traveled a distance h...
*Saturday, October 18, 2014 at 3:13pm*

**PHYSICS 1301 (COLLEGE)**

A box of unknown mass is sliding with an initial speed vi = 5.10 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 4.20 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100...
*Saturday, October 18, 2014 at 2:38pm*

**Language arts **

Which of the following exoresses a main idea from "Always to Remember"? A. Maya Ying Lin was a talented and smart college student who became a designer. B. Maya Ying Lin's family life, travel ecperiences, and education provided er a background necessary for a ...
*Friday, October 17, 2014 at 7:20pm*

**Algebra**

From a survey of 100 college students, a marketing research company found that 45 students own ipods, 45 owned cars and 25 owned both cars and ipods. How man students owned either a car or an ipod (but not both) and how many do not own either a car or an ipod?
*Friday, October 17, 2014 at 2:52pm*

**statistics**

A college student takes a standardized test and scores a 163. If the mean is 155 and the standard deviation is 7, what is the student’s percentile rank? (Assume a normal distribution.)
*Friday, October 17, 2014 at 2:25pm*

**college physics**

two billiard balls of equal mass undergo a perfectly elastic collision. if the speed of one ball was initially 5.72 m/s and the other 1.64 m/s. what will their speeds be after the collision
*Thursday, October 16, 2014 at 7:50pm*

**Statisitics **

Identify the population, and the sample in each of the following: A small college has 275 tenured full and associate professors. Twenty professors are randomly chosen to take part in a survey about the incorporation of technology into their teaching approach. A survey of 1023 ...
*Thursday, October 16, 2014 at 10:51am*

**vocabulary help**

When the realtor realized that there was a large dent in the floor, he tried to __________ cover it before the potential buyers noticed it. flagrantly ostensibly (my answer) surreptitiously latently Choose the word that best completes the sentence. After traffic made them late...
*Wednesday, October 15, 2014 at 10:43am*

**math college algebra**

lynne is 24 years old. lynne is twice as old as jean was when lynne is as old as jean is now. how old is jean ?
*Wednesday, October 15, 2014 at 12:00am*

**Pre-Cal**

The prerequisite for Statistics is precalculus. College of Nursing students (only) are eligible to have the prereq waived. What does waived means?
*Tuesday, October 14, 2014 at 5:38pm*

**Finance**

As a college student, you probably receive many credit card offers in the mail. Consider these two offers. The first card charges a 17 percent APR. An examination of the footnotes reveals that this card compounds monthly. The second credit card charges 16.25 percent APR and ...
*Monday, October 13, 2014 at 9:29pm*

**College Physics 1401**

The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 100 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
*Monday, October 13, 2014 at 9:06pm*

**College Chemistry lab**

How do I Calculate the concentration of iron(lll) with absorbance measurement. Wavelength is 480nm, solution is 1 ml FeCl3 : 9ml HCl, absorption is .250A, concentration of stock FeCl3 solution is 0.00050M and stock HCl solution is 2.0M. I not sure how to use beer's law to ...
*Monday, October 13, 2014 at 4:20pm*

**College Physics**

Two crates are connected by a massless rope that passes over a pulley. If the crates have mass 33 kg and 82 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 12 m above the floor, how long does it take for the more massive crate ...
*Monday, October 13, 2014 at 3:43pm*

**College Physics**

A hockey puck is sliding down an inclined plane with angle θ = 12.4° as shown in the figure below. If the puck is moving with a constant speed, what is the coefficient of kinetic friction between the puck and the plane?
*Monday, October 13, 2014 at 3:42pm*

**College Physics**

There are two forces acting on an object. One force has a magnitude of 35 N and is directed along the +x axis. The other force has a magnitude of 20 N and is directed along the +y axis. What is the direction of the acceleration of the object? Express your answer by giving the ...
*Monday, October 13, 2014 at 3:41pm*

**College Physics**

A skier is traveling at a speed of 39.7 m/s when she reaches the base of a frictionless ski hill. This hill makes an angle of 14° with the horizontal. She then coasts up the hill as far as possible. What height (measured vertically above the base of the hill) does she reach?
*Monday, October 13, 2014 at 1:48pm*

**College Math**

5) A landscaper wants to make a small planter and surround it with edging material for a client. She is deciding between two designs. Design 1: A square planter Design 2: A circular planter Edging material costs $4 per ft. for the straight variety which she would use for ...
*Monday, October 13, 2014 at 2:08am*

**college intermediate**

In a group of 200 high school students, 36 are taking biology, 52 are taking Spanish, and 126 are taking neither biology nor Spanish. If one of these 200 students is to be chosen at random, what is the probability that the student chosen is taking biology but not Spanish?
*Sunday, October 12, 2014 at 4:03pm*

**College Algebra**

When MyKing Burgers charges a price p dollars for one of its burgers, its revenue in dollars is given by R(p) = −200p(p − 10) For what prices does the company have no revenue? for this problem do i set the equation at 0=-200p(p-10) and solve from there?
*Sunday, October 12, 2014 at 1:42pm*

**Math College (Algebra)**

How to solve this system? x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0
*Saturday, October 11, 2014 at 7:19pm*

**College Algebra**

How to find the values of x,y and z and to show the condition stated below? 2yz + zx − 5xy = 2 yz − zx + 2xy = 1 yz − 2zx + 6xy = 3 Show that xyz = ±6 and find all possible values of x, y and z.
*Saturday, October 11, 2014 at 9:27am*

**College Algebra**

How to solve this system? x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0
*Saturday, October 11, 2014 at 9:25am*

**College Algebra**

Solve for x in terms of the other symbols: rsx^2 + s^2 x + rtx + st = 0
*Saturday, October 11, 2014 at 9:21am*

**College Physics**

A 0.300-kg ice puck, moving east with a speed of 5.86m/s , has a head-on collision with a 0.990-kg puck initially at rest. Assume that the collision is perfectly elastic. What is the speed of the 0.300-kg puck after the collision? What ise the speed of the 0.990-kg puck after ...
*Friday, October 10, 2014 at 8:01pm*

**College chemistry**

What is the volume in milliliters of 0.1069 M Cr2O72- required to react with 252.4 mL of 0.08013 M Cl- according to the reaction below? 6 Cl-(aq) + Cr2O72-(aq) + 14 H+(aq) ® 3 Cl2(g) + 2 Cr3+(aq) + 7 H2O(l)
*Friday, October 10, 2014 at 4:59pm*

**Algebra**

Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade ...
*Thursday, October 9, 2014 at 8:35pm*

**College question**

I'm a high school senior and I'm planning on applying to SBU. I have a 4.0 gpa, a 1690 on the SAT(am going to retake), a 24 on the ACT, took 3 AP classes and am currently taking 2 more, part of National Honor Society, in the top 5% of my school, have an advanced ...
*Thursday, October 9, 2014 at 6:47pm*

**College Math **

A block with a mass of m = 31 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 11 N. The second has a magnitude of F2 = 22.75 N and acts on the body at an angle θ...
*Thursday, October 9, 2014 at 1:22pm*

**College Science **

A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 5.3 kg. A. If the tension in one chain is represented by T, write an expression for this tension in terms of m and g, the gravitational acceleration on the Earth's ...
*Thursday, October 9, 2014 at 1:17pm*

**English**

I can't find on the web how to quote an article from the New York Times that appeared on the web--the catch is it has a column name This is the info: Title: Is College Worth It? Clearly New Data Say Author: David Leonhardt Column Name: The Upshot Publication date: May 27, ...
*Wednesday, October 8, 2014 at 10:38am*

**College chem**

what is the empirical formular of the following compound: 0.142 g phosphorus with 0.436 g of fluorine.
*Tuesday, October 7, 2014 at 5:20pm*

**College Physics**

Col. John Stapp led the U.S. Air Force Aero Medical Laboratory's research into the effects of higher accelerations. On Stapp's final sled run, the sled reached a speed of 284.4 m/s (632 mi/h) and then stopped with the aid of water brakes in 1.4 s. Stapp was barely ...
*Monday, October 6, 2014 at 8:58pm*

**math**

Alice took out a $15,000 loan for college. She is borrowing money from two banks. Bank A charges an interest rate of 6%, and Bank B charges an interest rate of 7%. After one year, Alice owes $960 in interest. How much money did she borrow from Bank A?
*Monday, October 6, 2014 at 2:28pm*

**statistics**

how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...
*Saturday, October 4, 2014 at 8:58am*

**houston community college**

while the pressure of 1.40 L of a gas is kept constant its temperature increased from 27.0 C to 177 C . calculate the new volume.
*Friday, October 3, 2014 at 5:11pm*

**College Physics**

A box with a mass of 3.5 kg is resting on a horizontal frictionless incline plane which is inclined at 28 degrees. Another force is applied at an angle of 13 degrees above the direction parallel to the incline. What does the magnitude of this force need to be, in Newtons, such...
*Wednesday, October 1, 2014 at 9:05pm*

**Math help!**

The number of students taking sophomore mathematics at Union College has been decreasing at the rate of 20 per year for many years. Assuming this trend continues, write a multiplication problem that describes the change in the number of sophomores taking mathematics at Union ...
*Wednesday, October 1, 2014 at 6:18pm*

**math**

hello im having problems with my math 1 Wells College in Aurora,New York was previously an all -girls college.In 2005,the college began to allow boys to enroll. By 2012, the ratio of boys to girls was 3 to 7. if there were 200 more girls then boys in 2012, how many boys were ...
*Wednesday, October 1, 2014 at 4:38pm*

**College algebra**

There were 40,000 people at a ball game in Los Angeles. The days receipts were 298,000. How many people paid $12.00 for reserved seats and how many paid $5.00 for general admission?
*Wednesday, October 1, 2014 at 4:02pm*

**Statistics**

The age distribution of students at a community college is given below. Age (years) Number of students (f) 11) Over 35 26 1103 A student from the community college is selected at random. Find the conditional probability that the student is at most 35 given that he or she is at...
*Wednesday, October 1, 2014 at 1:13pm*

**College Alg**

The revenue and cost equations for a product are R=x (50-0.002x) and C= 12x+ 150000. Where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to get a profit of at least 1,650,000
*Wednesday, October 1, 2014 at 10:45am*

**Physics College**

What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s?
*Tuesday, September 30, 2014 at 9:22pm*

**college chemistry **

a 1.0kg sample of metal with a specific heat of 0.50KJ/Kg C is heated to 100.0C and then placed in a 50.0g sample of water at 20.0C . What is the final temperature of the metal and the water?
*Tuesday, September 30, 2014 at 5:31pm*

**College Prep Math 4**

The formula is S=2 times the square root of 5 times L. S equals the estimated speed of a car and L equals the length of the skid marks prior to the accident. 100=2(square root of 5x) I have no idea how to solve this
*Tuesday, September 30, 2014 at 9:24am*

**College Algebra**

Jen recently rode her bicycle to visit her friend who lives 12 miles away. On her way there, her average speed was 10 miles per hour faster than on her way home. If Jen spent a total of 1 hour bicycling, find the two rates.
*Tuesday, September 30, 2014 at 1:27am*

**college algebra**

y = 1 − (x − 2)^2
*Monday, September 29, 2014 at 10:16pm*

**science**

Which of the follow comparisons would be an inaccurate analogy between prokaryotic cells and eukaryotic cells? A - A eukaryotic cell is like a college campus was a prokaryotic cell is like a one-room schoolhouse B - A eukaryotic cell is like a flip phone while a prokaryotic ...
*Sunday, September 28, 2014 at 9:10pm*

**biology**

Which of the follow comparisons would be an inaccurate analogy between prokaryotic cells and eukaryotic cells? A - A eukaryotic cell is like a college campus was a prokaryotic cell is like a one-room schoolhouse B - A eukaryotic cell is like a flip phone while a prokaryotic ...
*Sunday, September 28, 2014 at 7:39pm*

**college**

The density of an alloy is 5000 kg/m3. What is the density in g/cm3?
*Sunday, September 28, 2014 at 3:32pm*

**english b**

Hughes received financial assistance from Charlotte Mason. In 1930, he broke away from Mason and her financial assistance to a. travel the world. c. to maintain his integrity. b. go back to college. d. to get married.
*Friday, September 26, 2014 at 4:54pm*

**business**

college students purchase many more energy drinks during finals week than during the rest of the semester shift of the demand curve or movement along the demand curve
*Thursday, September 25, 2014 at 2:04pm*

**business **

college students rush and buy discount furniture to take advantage of a one day sale shift of the demand curve or movement along the demand curve
*Thursday, September 25, 2014 at 2:03pm*

**Brown Mackie College**

At the end of the fiscal year, what accounts are debited and credited to record the division of net income among partners?
*Wednesday, September 24, 2014 at 6:45pm*

**College Pre-Calculus**

find a function m such that m(f) is the number of miles in f feet
*Tuesday, September 23, 2014 at 12:07am*

**Reading**

Read each sentence. On the lines provided,write simple if it has one independent clause. Write compound if it has two or more independent clauses. Write compound if it has two or more independent clauses. 1. I wanted to go to the concert,but my parents wouldn't let me. 2. ...
*Monday, September 22, 2014 at 4:01pm*

**college physics**

A 52.2 kg parachutist lands moving straight downward with a speed of 3.75 m/s. If the parachutist comes to rest with constant acceleration over a distance of 0.794 m, what force does the ground exert on her?
*Monday, September 22, 2014 at 1:23pm*

**college physics**

tennis ball rolls off the edge of a tabletop 0.900m above the floor and strikes the floor at a point 1.60m horizontally from the edge of the table. A: Find the time of flight of the ball B: Find the magnitude of the initial velocity of the ball. C: Find the magnitude of the ...
*Monday, September 22, 2014 at 12:44am*

**College Physics**

A Balloon carrying a basket is descending at a constant velocity of 20.0 m/s. A person in the basket throws a stone with an initial velocity of 15.0 m/s horizontally perpendicular to the path of descending balloon and 4.00 (s) later this person sees the stone strike the ground...
*Sunday, September 21, 2014 at 8:45pm*

**Physics College - Circular motion **

At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (6.00 m/s2) i^+ (4.00 m/s2) j^. It moves at constant speed. At time t2 = 5.00 s, its acceleration is (4.00 m/s2) i^+ (-6.00 m/s2) j^. What is the radius of the path taken by the particle?
*Sunday, September 21, 2014 at 8:38am*

**Math**

The college president asks the statistics teacher to estimate the average age of the students at their college. How large a sample is necessary? The statistics teacher decides the estimate should be accurate within half year and be 92% confident. From a previous study, the ...
*Sunday, September 21, 2014 at 5:21am*

**econ 2110**

Suppose that we want to test whether the mean selling price of houses with is the same as the mean selling price of houses without a garage. We collect two samples and obtain the following information: Houses with garage Sample size: 71 Mean selling price (in thousands of ...
*Friday, September 19, 2014 at 7:02pm*

**College Physics**

An uncharged 3.20-μF capacitor is in series, through a switch, with a 5.55-M Ω resistor and a 36.0- V battery (with negligible internal resistance.) The switch is closed at t = 0 and a current of Ii immediately appears. Determine Ii. How long will it take for the ...
*Tuesday, September 16, 2014 at 10:20pm*

**College Physics**

What is the smallest capacitor needed in a computer power supply in order to supply at least 0.2 A of current for 0.35 s after the power goes off? (DATA: Assume that the resistance of all the components of the computer mother board is 5 Ω and it uses a 5 V supply.)
*Tuesday, September 16, 2014 at 10:19pm*

**College Physics**

After 2.5 time constants, what percentage of the final voltage, emf, is on an initially uncharged capacitor C, charged through a resistance R?
*Tuesday, September 16, 2014 at 10:18pm*