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October 1, 2014

Homework Help: College

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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

College Physics
A heart pacemaker fires 66 times a minute, each time a 27.0–nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. What is the value of the resistance?
Tuesday, September 16, 2014 at 10:17pm

College Physics
A circuit consists of 3 components connected between 2 terminals: A 6 V source, a 90 Ω resistor and a 0.01 F capacitor. The capacitor is initially uncharged. The voltage source is turned on. What is the voltage across the capacitor after a very long time? What is the ...
Tuesday, September 16, 2014 at 10:16pm

College Physics
What is the internal resistance of a 15.0 V car battery whose terminal voltage drops to 13.40 V when the starter draws 50.1 A? What is the resistance of the starter?
Tuesday, September 16, 2014 at 10:15pm

college algebra
A jazz group on tour has been drawing average crowds of 600 people. It is projected that for every $1 increase in the $15 ticket price, the average attendance will decrease by 60. At what ticket price will nightly receipts be $7,560?
Tuesday, September 16, 2014 at 8:33pm

college algebra
The Vilas County News earns a profit of $20 per year for each of its 3,000 subscribers. Management projects that the profit per subscriber would increase by 1¢ for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit ...
Tuesday, September 16, 2014 at 5:56pm

college algebra
An advertising company orders a poster that is 342 square feet. If its length is 1 foot greater than its width, find the dimensions of the poster.
Tuesday, September 16, 2014 at 5:05pm

college algebra
A contractor leans a 23-foot ladder against a building. The distance from the ground to the top of the ladder is 7 feet more than the distance from the building to the base of the ladder. How far up the building is the ladder to the nearest tenth of a foot?
Tuesday, September 16, 2014 at 5:05pm

college algebra
The Vilas County News earns a profit of $20 per year for each of its 3,000 subscribers. Management projects that the profit per subscriber would increase by 1¢ for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit ...
Tuesday, September 16, 2014 at 3:11pm

english
which is a better thesis A. Because it has become outdated, the electoral college should be replaced by a system that allows the US president to be elected by direct popular vote. B. Rather than voting for a presidential candidate, voters in a US presidential election merely ...
Monday, September 15, 2014 at 12:55pm

college algebra
An executive invests $29,000, some at 8% and some at 4% annual interest. If he receives an annual return of $1,680, how much is invested at each rate?
Monday, September 15, 2014 at 12:19pm

statistics
A random sample of 8 male college students was taken and asked to report their shoe size and height in inches
Sunday, September 14, 2014 at 11:52pm

College Chemistry
how many liters of ethanol contain 1.5 kg of ethonal?
Sunday, September 14, 2014 at 7:29pm

college physics
Show that the motion of a particle in a central force field is always confined to a plane.
Saturday, September 13, 2014 at 5:10am

Veterinarian assisted
1. In the __________, an animal patient's hair is clipped and its skin is scrubbed to prepare for surgery.  A. hospital ward  B. surgical suite  C. treatment area  D. grooming area  2. Supervision of the treatment area is usually the responsibility...
Friday, September 12, 2014 at 6:17pm

Language Arts - Please Check My Answer For This
Please help me with the following: Read the sentence. Juanita used her affinity for numbers to help her design a computer program that relied on college-level math formulas, even though she was only in middle school. Based on the context clues in the sentence, what is the best...
Friday, September 12, 2014 at 2:29pm

Statistics
In a survey of 80 high school football players who committed to play in the Division III CCIW conference, 64 said that they would work out in their high school weight rooms in the summer before college. The margin of error for the survey was 6%. A census of all CCIW football ...
Friday, September 12, 2014 at 1:04pm

College Algebra
A boy can row a boat at a constant rate of 5 mi/hr in still water, as indicated in the figure. He rows upstream for 24 minutes and then rows downstream, returning to his starting point in another 16 minutes. (Round your answers to two decimal places.) (A) Find rate of the ...
Friday, September 12, 2014 at 9:07am

Science (college level)
1. What solar temp is needed for the peak intensity of radiation to occue at .2 micrometers? Remembering that humans can see light only between .4 and .7 microns, would the sun look brighter or dimmer at this new temp? 2. How much variation in earth orbital distance from the ...
Friday, September 12, 2014 at 5:07am

college math
v=1/3ttr^2h; h(geometry)
Thursday, September 11, 2014 at 8:20pm

college math
How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution
Thursday, September 11, 2014 at 8:18pm

college math
A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island?
Thursday, September 11, 2014 at 8:18pm

college chemistry
Express the concentration of a 0.0620M aqueous solution of fluoride, F-, in mass percentage and in parts per million. assume the density of the solution is 1.00g/mL.
Thursday, September 11, 2014 at 7:29pm

Statistics
A poll was taken of a random sample of 1189 college students. Of these students, 789 reported that they had a drinking binge (more than 10 drinks in an evening) in the past month. Select the most believable conclusion. A. About 66.358% of college students indulged in binge ...
Thursday, September 11, 2014 at 1:15pm

college math
if $110 is invested for one year at 13% simple interest, how much interest is earned?
Wednesday, September 10, 2014 at 4:47pm

college algebra
A doctor prescribes an ointment that is 4% hydrocortisone. A pharmacist has 1% and 5% concentrations in stock. How many ounces of each should the pharmacist use to make a 3-ounce tube?
Wednesday, September 10, 2014 at 4:03pm

college algebra
An executive invests $22,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,680, how much is invested at each rate?
Wednesday, September 10, 2014 at 3:23pm

college algebra
A taxi cab company charges a flat fee of $3.30 and then an additional $2.20 for each mile. If a taxi fare is $29.70, how many miles was the trip?
Wednesday, September 10, 2014 at 12:43pm

College Physics
How many gallons of Oil would be in a cylindrical tank that was 24 feet long and had a diameter of 6 feet if the oil was 6 inches deep at the bottom of the tank?
Wednesday, September 10, 2014 at 8:05am

college algebra
compare and contrast the ways in which solving a linear inequality is similar / dissimilar to solving a linear equation please explain
Tuesday, September 9, 2014 at 9:09pm

statistics
At a local college, 81 of the male students are smokers and 729 are non-smokers. Of the female students, 350 are smokers and 350 are non-smokers. A male student and a female student from the college are randomly selected for a survey. What is the probability that both are ...
Monday, September 8, 2014 at 1:23pm

Young Harris College
How much energy is needed to heat 8.50 g of ice from -30.0 C to 70.0 C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(mol.K) for ice and 75.3 J/(mol.K) for liquid water. I got 19.24kJ but it isn't correct!!
Sunday, September 7, 2014 at 7:54pm

college physics
A 49-kg lead ball is dropped from the leaning tower of Pisa. The tower is 54 m high. (a) How far does the ball fall in the first 2.4 seconds of flight? (b) What is the speed of the ball after it has traveled 4.1 m downward? (c) What is the speed of the ball 1.7 s after it is ...
Sunday, September 7, 2014 at 4:51pm

college algebra
A large rectangular movie screen in an IMAX theater has an area of 7200 square feet. Find the dimensions of the screen if it is 10 feet longer than the width.
Saturday, September 6, 2014 at 10:27pm

Math
An all girl college began enrolling boys in 2005. By 2012 the ratio of boys to girls was 3 to 7. If there are 200 more girls than boys how many boys are there?
Saturday, September 6, 2014 at 8:08am

statistics
The mean height of students in a college is 155 cms and standard deviation is 15. What is the probability that the mean height of 36 students is less than 157 cms
Thursday, September 4, 2014 at 5:08pm

College Chemistry
Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00-g sample of each compound. One sample contains 0.29 g of X and the other contains 0.38 g of X. Identify plausible sets of formulas for these two compounds. Check all that apply. XY ...
Wednesday, September 3, 2014 at 3:57pm

college algebra
1. simplify x^2+x-6/x^2-4 divided by x+3/2x+4
Tuesday, September 2, 2014 at 11:11am

college algebra
1.build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2-x-12 2. add and simplify: x/x+2 +4x-3/x^2-4
Tuesday, September 2, 2014 at 11:04am

college algebra
question 1: build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2 question 2: simplify (x^2+6x+9)(3-x)/(x-3)(2x+6) question 3. find the product in simplest from x^3-9x/x^5+27x^2 * x^2-3x+9/x^2+3x
Tuesday, September 2, 2014 at 10:21am

KIPP Believe
The student-to-faculty ratio at a small college is 17:3. The total of students and faculty is 740. How many faculty members are there at the college? How many student?
Monday, September 1, 2014 at 5:38pm

Accounting 2
Match each of the following steps that took place as Books on Wheels moved through the decision making, production, marketing, and sale of The Campus Cart with the correct phase of the management process: planning/organizing, directing/leading, and controlling. A. Planning/...
Monday, September 1, 2014 at 2:35pm

college algebra
1. divide and simplify x^2+x-56/x^1-1 / x-7/2x+2 2. find the product in simplest from for x^2+x-6/2x^2-x-3 * x^7-2x^6+4x^5/x^4+8x 3. perform the indicated operations and simplify: 2/3x +4/3x^2 y^4 -6/2x^4 y^5 4. perform the indicated operation and simplify x/x-1 + 2x+3/x^2-1 5...
Monday, September 1, 2014 at 2:06pm

math
A college student earned $8900 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 10% and the rest at 9%. If the student received a total of $831 in interest at the end of the year, how much was invested at 10%?
Monday, September 1, 2014 at 10:53am

Accounting 2
Match each of the following steps that took place as Books on Wheels moved through the decision making, production, marketing, and sale of The Campus Cart with the correct phase of the management process: planning/organizing, directing/leading, and controlling. A. Planning/...
Sunday, August 31, 2014 at 11:30pm

Math
A classroom in a college is 15m long and 12m broad. If the sum of the areas of its floor and the ceiling is equal to the sum of the areas of 4 walls of classroom , the volume of the classroom is.
Saturday, August 30, 2014 at 9:39am

College Algebra
Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model ...
Wednesday, August 27, 2014 at 7:00pm

College Algebra
A and B share a $21 pizza. B eats 2/3 as much as A. How much should they each pay. Hint: There is still some pizza left.
Wednesday, August 27, 2014 at 3:31pm

Math for college readiness
Find the greatest common factor of these two expressions. 16w^3x^8v^4 and 28x^2v^7
Wednesday, August 27, 2014 at 2:16pm

College Algebra 1
Using the factoring method, solve for the roots of quadratic equation 4x^2=16
Saturday, August 23, 2014 at 7:46pm

College Algebra 1
Using the factoring method, solve for the root: 10x^2-41x=-21
Saturday, August 23, 2014 at 7:24pm

College Algebra 1
Factor by using the difference of two square formula 1-25z^2
Saturday, August 23, 2014 at 3:39pm

college algebra
store mixes a Brazilian coffee worth worth $10 per kilogram and a turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find out how much of each should be used to make a 420-kilogram mixture. my calculations all came out super wrong
Friday, August 22, 2014 at 9:59pm

College ALGEBRA
. Manny plans to save of his salary each week. If his weekly salary is $ 444, find the amount he will save each week.
Friday, August 22, 2014 at 5:32pm

Economics
Production Possibilities Curve (PPC) Worksheet All PPC’s Reflect Increasing Opportunity Costs For Numbers 1-10, think the change affects all markets. On all graphs, place “Consumer Goods” on the X Axis and place “Capital Goods” on the Y. 1) Hurricane ...
Thursday, August 21, 2014 at 8:56pm

Algebra 1
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, August 21, 2014 at 9:10am

college algebra
Pump A alone can empty the city pool in 12 hours. If only pump B is used, it takes 24 hours to empty the pool. How long would it take to drain the pool if both pumps were used together?
Wednesday, August 20, 2014 at 9:17pm

college algebra
factor (x+9)(x-16)=0
Wednesday, August 20, 2014 at 5:36pm

Advanced algebra
The number of freshmen entering college in a certain year is 621. What type of data is 621? A. Discrete data B. categorical data C. Continuous data
Monday, August 18, 2014 at 8:18pm

statistics
The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table: On a week night, what percentage of students sleep between 5 and 10 hours
Monday, August 18, 2014 at 9:27am

fitness
1.The leading cause of death between ages 25 and 44 is A. heart disease. B. malignant neoplasms (cancer). C. unintentional injury. D. chronic low-respiratory disease. 2.Nearly _______ percent of the United States population dies from heart disease, cancer, and stroke. A. 20 B...
Saturday, August 16, 2014 at 7:58pm

visual basic programming
Write a Visual Basic program that will calculate the assessment marks of a student taking the Computer Programming subject in College. The program must be able to determine the total result and finally display the grade of that student. The program will also ensure that each ...
Thursday, August 14, 2014 at 8:17pm

Education/College
Do you believe that men and women develop in similar ways across the socioemotional domain in middle adulthood. I have read chapter 16 of my book but it is confusing me!
Tuesday, August 12, 2014 at 6:41pm

cOLLEGE mAJORS
ACCOUNTING VS IT WHICH IS HARDER? WHICH IS EASIER?
Tuesday, August 12, 2014 at 4:42pm

college algerba
on a map 1" equals 630 miles. How much does 2/7 inches equal
Monday, August 11, 2014 at 5:30pm

College Chemistry II
What is the pH of rainwater at 30C in which atmospheric Co2 has dissolved, producing a constant [H2Co3] of 1.40x10^-5 M? Take into account the auto ionization of water. Im very confused on how to even start this problem
Sunday, August 10, 2014 at 5:03pm

College Chemistry II
What is the solubility of ZnCO3 at 25C in a buffer solution with a pH of 10.21? ZnCO3 <----> Zn++ + CO3 – - CO3-- + H2O ----> HCO3- + OH- pOH = 14 – 10.21 = 3.79 [OH-] = 1.62x10^-4 M = [CO3--] = [Zn++] Ksp = [Zn++][CO3-] = (1.62x10^-4)( 1.62x10^-4) = 2.63x10...
Sunday, August 10, 2014 at 3:35pm

MATH
At one college, GPA’s are normally distributed with a mean of 2.9 and a standard deviation of 0.6. Find the 70th percentile.
Thursday, August 7, 2014 at 5:10am

college algebra
A store sells cashews for $5.00 per pound and peanuts for $1.50 per pound. The manager decides to mix 30 pounds of peanuts with some cashews and sell the mixture for $3.00 per pound. How many pounds of cashews should be mixed with the peanuts so that the mixture will produce ...
Tuesday, August 5, 2014 at 10:47pm

college algebra
How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol
Tuesday, August 5, 2014 at 11:19am

college physics
Calculate the angular speed of the moon if it makes a revolution around the earth in 27.3 days?
Tuesday, August 5, 2014 at 4:07am

college physics
A wheel starts from rest and increase it's rotational speed;time required to reach that speed;Uniform angular acceleration.
Tuesday, August 5, 2014 at 4:06am

college physics
What is the force applied in the direction of the wire at a point attached to the patient in a traction system, if the mass applied is equal to 5kg?
Tuesday, August 5, 2014 at 4:04am

Human Resources
3. Design a Pilot Test. Following are descriptions of three situations in which a test has been developed. Read each situation and then design a pilot test. Answer the following questions about the pilot test: a. Who will take the test? b. What information will you gather, and...
Tuesday, August 5, 2014 at 12:19am

Pre-College Algebra
multiply the polynomial (x-1)(2x squared - x- 3)
Monday, August 4, 2014 at 8:28pm

algebra
From a survey of 100 college students, a marketing research company found that 65 students owned ipods, 45 owned cars, and 15 owned both cars and Ipods. (a) How many students owned either a car or an ipod (but not both)? (b)How many students do not own either a car or an ipod?
Sunday, August 3, 2014 at 4:58pm

college math
On August 4, 2007, NASA's Phoenix Mars Lander was launched into space to search for life in the icy northern region of the planet Mars; it touched down on Mars on May 25, 2008. As the ship raced into space, its jet fuel tanks dropped off when they were used up. The ...
Saturday, August 2, 2014 at 9:01pm

College math
Express the following in terms of Sum(or differnece) of logarithm's: log sub-b T^5 W^2 Z
Saturday, August 2, 2014 at 9:00pm

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