nik
Most popular questions and responses by nik
4th grade math
Solve this number riddle: I am an odd number. I am less than 100. The sum of my digits is 12. I am a multiple of 15. What number am I? Is it 1?
asked on January 25, 2017 
Physics
Four forces act on a hotair balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. ________° clockwise from F2
asked on October 17, 2012 
physics
An iron cube floats in a bowl of liquid mercury at 0 C. a) If the temperature is raised to 28 C, will the cube float higher or lower in the mercury? b)By what percent will the fraction of volume submerged change? Thanks
asked on September 4, 2008 
Trigo
A vertical pole is standing on a slope that is inclined at an angle 8 degrees to the horizontal and casts a shadow that is 82 ft. long down the slope. How tall is the pole if the angle of elevation of the sun is 28 degrees?
asked on September 16, 2014 
Physics  Angular Momentum
Water drives a waterwheel (or turbine) of radius 3.5 m. The water enters at a speed v_1 = 7.5 m/s and exits from the waterwheel at a speed v_2 = 4.0 m/s. a) If 84 kg of water passes through per second, what is the net torque? b) If the water causes the
asked on April 18, 2008 
Macroeconomics
Suppose most business executives expect a slowdown in the economy. How might this situation effect the economy? What would these expectations do to inventory ordering, hiring, and making loans, or investing in new machinery?
asked on August 16, 2007 
Physics  Equilibrium
A uniform ladder of mass M and length L leans at an angle theta against a frictionless wall. If the coefficient of static friction between the ladder and the ground is U, determine a formula for the minimum angle at which the ladder will not slip.
asked on April 18, 2008 
Physics  Fluids
A cube of side length 11.0 cm and made of unknown material floats at the surface between water and oil. The oil has a density of 810 kg/m^3. a)If the cube floats so that it is 70% in the water and 30% in the oil, what is the mass of the cube? b)What is the
asked on April 25, 2008 
physics  fluids
A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. How much force is required to hold a 7.5 cm diameter hose delivering 450 L/min through a 0.80cm diameter nozzle?
asked on May 2, 2008 
PHI 105
Assignment: Political Campaign Ads Due Date: Day 7 [Individual] forum Create a political campaign ad (a poster, a flier, etc.) for two political parties: one party that supports traditional moral and political philosophies and another party that
asked on March 1, 2009 
Physics  Angular Momentum
A 230 kg beam 2.4 m in length slides broadside down the ice with a speed of 22 m/s. A 65 kg man at rest grabs one end as it goes past and hangs on as both he and the beam go spinning down the ice. Assume frictionless motion. a) How fast does the center of
asked on April 18, 2008 
Corporate Finance
The yieldtomaturity on a bond is the interest rate you earn on your investment if interest rates do not change. If you actually sell the bond before it matures, your realized return is known as the holding period yield. Suppose that today, you buy a 12
asked on April 21, 2011 
calculus
Let f(x)=2.2 3x. Estimate the derivative f'(2.3) to within two decimal places by using a small enough interval.
asked on October 1, 2010 
Physics
A thin rod of length L and mass M rotates about a vertical axis through its center with angular velocity w. The rod makes an angle B with the rotation axis. Determine the angular momentum of the rod.
asked on April 18, 2008 
english
in the following sentence which word is the gerund and is it used a direct object, a predicate noun, subject or object of a preposition?
asked on June 12, 2018 
chemistry
According to the following reaction, how many grams of sulfur trioxide will be formed upon the complete reaction of 21.2 grams of oxygen gas with excess sulfur dioxide? sulfur dioxide (g) + oxygen (g) sulfur trioxide (g)
asked on October 24, 2010 
calculus
(1 pt) The following table gives the cost and revenue, in dollars, for different production levels, q. Answer the questions below. q 0 100 200 300 400 500 600 R(q) 0 540 1080 1620 2160 2700 3240 C(q) 650 915 985 1115 1270 1870 2605 At approximately what
asked on October 12, 2010 
science
a current of 4a flows through a 12v headlight for 10min calculate energy transfered during this time
asked on March 12, 2010 
geometry
Flower seeds will be planted at points that lie on a circle that has a diameter of 8 feet. The point where any seed is planted must be 2 feet away from the seefs on either side of it. What is the maximum number of seeds that can be planted.
asked on March 20, 2016 
geometry
Find m angle NKL if m angle JKL = 2m angle JKN
asked on September 27, 2012 
ethnic
Do members of your community look like you? In what ways do they look the same or different? o How do leaders within your community treat people who are like you? How do they treat people who are different? o How do other members of your community treat
asked on June 26, 2008 
Algebra word problem
In 2004, the population of Mexico was 106.5 million. If Mexico's population continues to grow at an annual rate of 1.43%, then the population in 2015 will be 106.5 (1.0143)^11 million. a. find the predicted population in 2015 to the nearest tenth of a
asked on July 30, 2007 
math
what is the maximum amount of money you can win on the game show jeopardy in any one night? Note that the dollar amounts in each category are bigger than they used to be and don't forget the daily double and the bonus round.
asked on August 21, 2008 
Math medication problems
I really don't know how to begin to approach this problem. A 6yearold patient underwent an outpatient tonsillectomy and adenoidectomy The surgeon ordered 1,000 cc D5W, dispensed at a rate of 600 cc every 8 hours, to maintain hydration levels. A
asked on September 19, 2017 
calculus
The graph of the function y=g(x) is given in the figure above. The x coordinate is (0,2.) 3. Estimate the xcoordinate of the point where g''(x)=0. Round your answer to one decimal place.
asked on October 7, 2010 
Biochemistry
What is the pH of the resulting solution if 10.0 mL of 1.0 M NaOH is added to 100 mL of this formic acid  sodium formate solution?
asked on June 27, 2016 
physics  another thermo problem
A bicycle pump is a cylinder 20 cm long and 3.0 cm in diameter. The pump contains air at 25.0 C and 1.0 atm. If the outlet at the base of the pump is blocked and the handle is pushed in very quickly, compressing the air to half its original volume, how hot
asked on September 18, 2008 
math
the problem is to use the information given to figure our who will win the third round of tugofwar. round 1 on one side are four acrobats, each of equal strength. on the other side are five neighborhood grandmas, each of equal strength. the result is dead
asked on August 21, 2008 
Math
A recepie for pancakes call for 1.25 cups of milk. camper need 4 times recipe. How many quarts of milk will he need if 4 cups equal 1quart
asked on January 9, 2017 
Behavioral Statistics
Because Foofy's score had a relative frequency of .02, she claims she had one of the highest scores on the exam. Why is she correct or incorrect?
asked on January 31, 2016 
college algebra
find the equation of a parabola that opens to the right with given vertex: (0,3) and passes through the point: (2,1)
asked on July 14, 2012 
algebra
15(s3)=12s43 How would I go about solving this problem?
asked on March 14, 2011 
calculus
Assume the initial investment was $6600 and the annual interest rate to be compounded continuously is 5%. Assume also that the target amount is $7900. If you want the account to contain the target amount given above after 9 years, what yearly interest rate
asked on September 14, 2010 
science
what are variables in science experiments? please give me an example like my experiment is how to tell if a person is lying by his body language.thank you. need answer badly!!!
asked on May 10, 2009 
history
how can you Create a fullsentence outline that includes effective arguments and counterarguments to support your thesis
asked on June 2, 2008 
physics  oscillations
A mass m is at rest on the end of a spring of spring constant k. At t = 0 it is given an impulse J by a hammer. Write the formula for the subsequent motion in terms of m, k, J, and t. Assume x=0 at t=0. Thanks, nik
asked on May 9, 2008 
physics  oscillations
A mass m is at rest on the end of a spring of spring constant k. At t = 0 it is given an impulse J by a hammer. Write the formula for the subsequent motion in terms of m, k, J, and t. Assume x=0 at t=0. Thanks, nik
asked on May 9, 2008 
ethnic
Consider these questions: What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences? (Schaefer, 2006, p. 352) • Choose from any of the following topics when considering
asked on June 25, 2008 
substitution
Please take me through this one problem and I think I can use this as a guide to tackle the others... Solve by the addition method, indicate if it is independent, inconsistent, or dependent x+3(y1)=11 2(xy)+8y=28 multiply out and get each into the form
asked on August 16, 2007 
chemistry
The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 6.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor
asked on November 29, 2012 
calculus
solve the equation: 6P=Pe^1.1t
asked on September 13, 2010 
COM 150
Some athletes have taken drug tests to prove they are not on steroids. does this sentence contain a regular or irreagular verb, and why?
asked on March 5, 2010 
math
how many months in 7 & 1/2 years?
asked on February 24, 2010 
history
200 to 300word summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue, and explain why you think there is a connection. Consult the National Congress of American
asked on June 13, 2008 
history
To me everyone is the same and by having someone under someone else it sure brings out a lot of problems in life
asked on May 28, 2008 
ethnic
what are the issues between the Chinese American and Japanese American [cultural] experiences? What are the differences?
asked on June 27, 2008 
Algebra question
When you solve a system of equations by the substitution method, how do you determine whether the system of equations is dependent? If your variables disappear as you simplify, and you end up with 0=0 (or k=k) the system is dependent. (really just the same
asked on August 14, 2007 
I have the problem halfway solved
9/7x + 8 < 4x  5 9/7x + 4x + 8 , 4x + 4x  5 9/7x + 4x +8 < 5 The book then has 19/7x + 8 <  5 I know how to solve this but I am lacking or trying to remeber how they got 19/7  need a refresher Convert the "x" terms to common denominators 4 x 
asked on August 2, 2007 
math
A student reader is making $7.20 per hour and gets a $0.64 raise. What is the percent increase? (Round to the nearest tenth of a percent.)
asked on December 12, 2014 
trig
GIVEN THE ANGEL ALFA WITH COS ALFA = 1/a. IF ALFA IN QUADRANT TWO, THE VALUE OF SIN ALFA IS....
asked on April 10, 2013 
chemistry
N2O5 dissolved in CCl4 decomposes to give N2O4 and O2. The reaction is first order with a halflife of 1234 seconds. How long will it take, in seconds, for the concentration of N2O5 to fall to 1.1% of its initial value?
asked on November 29, 2012 
geometry
angle JKN = 56 degree
asked on September 27, 2012 
college algebra
write the equation of the hyperbola in standard form: x^24xy^2+6y=9
asked on July 14, 2012 
math algebra
9p +2q4(6p2q) simplified
asked on September 15, 2011 
physics
TRIAL 1 A. ) Bag A + 6 stones Mass (kg)  0.037 kg Mass of weight hanger + slotted weights  210 g/ 0.21kg Tension 1 (N)  ?? Acceleration (m/s2)  ?? B. ) Bag B + 4 stones Mass (kg)  0.08 Mass of weight hanger + slotted weights  210 g/ 0.21kg Tension 1
asked on May 4, 2011 
Advanced Functions
If a bacteria population doubles in 7 days, when was it half of its present population?
asked on January 12, 2011 
science
sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim
asked on May 10, 2009 
science
sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim
asked on May 10, 2009 
physics
A 1.80 mol sample of an ideal diatomic gas at a pressure of 1.20 atm and temperature of 410 K undergoes a process in which its pressure increases linearly with temperature. The final temperature and pressure are 710 K and 1.83 atm. (Note: Volume does not
asked on September 18, 2008 
history
What type of introduction and what type of conclusion do you plan to write for your research paper? How does the introduction draw readers into your argument, and how does the conclusion neatly tie up your paper?
asked on June 8, 2008 
math
5/(w3) Solve for w. w= I don't understand. Please help. Did I copy this incorrectly or something?
asked on September 26, 2013 
Calc
What is lim (x > 0) of (e^x) / x Thank you!!
asked on September 13, 2012 
college algebra
Find the standard form of the equation of an ellipse with center at (2,1) with major axis length 10 along y axis and minor axis length 8 along the x axis
asked on July 14, 2012 
calculus
For what values of a and b that make the function f continuous everywhere. f(x)= {x−2x2−4 if x
asked on September 16, 2011 
math
what is h(3h)
asked on May 19, 2010 
chemistry
how many moles of acetic acid are in 15.05mL, 45.13mL, and 75.22mL of titrated vinegar?
asked on May 14, 2010 
calculus
what is the the derivative of the absolute value !@#$%^&tion x3
asked on November 15, 2009 
science
do pupils dilate when a person lies? why? thank you!
asked on May 10, 2009 
physics
easy method to solve questions on ap,gp,agp?????????????????????
asked on September 27, 2008 
history
Consider the choices of Native Americans who decide to stay on their tribe's native land (reservation)and those who choose to relocate to a city. If you were presented with this decision, which would you choose and why?
asked on June 12, 2008 
ethnic
What information about race and ethnicity in the United States has helped you better understand or relate to specific minority groups? Have you learned something new about your own cultural history? Trends in immigration will continue to shape the face of
asked on July 3, 2008 
history
Identify the different types of statistics, graphs, and illustrations that are appropriate for your topic. Where do these visuals fit most effectively into your paper? Explain how these visuals strengthen your arguments
asked on June 5, 2008 
history
Identify the thesis statement in the article AIDS in Africa: Dying by the Numbers. What strategies does the author use to formulate his argument? What makes the argument so compelling?
asked on May 28, 2008 
science
Post your response to the following: Reflect on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position.
asked on July 10, 2008 
ethnic
If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and why or why not. o Asian Americans and Pacific Islanders are a model
asked on June 23, 2008 
Algebra help
Would someone help me through this one...? (10rs^9t4/2rs^2t^7)^3
asked on September 17, 2007 
another problem for checking  algebra
P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial P(q + r/2)^2 represents the value of the investment after 1 year. Rewrite w/o parenthesis and eval if P= $200 and r = 10% P(1 +
asked on September 17, 2007 
need an answer checked
The length of a rectangular swimming pool is 2x1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters. (2(5)1) (5+2) (101) (9* 7) 63 My answer is 63. Do you agree?
asked on September 17, 2007 
ethnics
What strategies do you use for revising a paper? How do you know when to accept feedback from another source? What makes feedback valuable to you?
asked on June 24, 2008

Math Literacy
How Would i explain that in a form of a paragraph??
posted on September 19, 2017 
American Government
Lesson 8: The Articles of Confederation 1:A 2:C 3:D 100%
posted on September 15, 2016 
basic statistics for the behavioral sciences
(A) Wrong. 10th percentile means the lowest 10% of the class (B) Neither right nor wrong. It depends on which tail end the scores fall upon
posted on January 31, 2016 
Analyzing with ANOVA
7.408 6.922 2.277
posted on September 22, 2015 
chemestry
12
posted on June 22, 2015 
MATHS
2x3(x2)=$34
posted on November 6, 2014 
math
24
posted on October 6, 2014 
physics
You did a misstep in your calculation as its ... y=y0+V0yt+.5Ayt^2 0=30+10t[.5(9.8)t^2]
posted on October 1, 2014 
3rd grade math
1400
posted on August 12, 2014 
physics(URGENT!!!!!)
part d f'=f explanation: in case of wind blowing, we'll add the speed of wind to the speed of sound (vectorially). Hence in this case it will add up. Now since the both the observer and the source are stationary, there will be no change in the frequency
posted on December 9, 2013 
Physics Classical Mechanics
Tfixed=2*pi*((8*l^2+3*R^2)/(9*g*l))^(1/2) but i haven't yet checked my answer for Tfree.
posted on November 13, 2013 
finance
2.6 / 5.63
posted on November 12, 2013 
PHYSICS
there is a problem in the last answer, at the site from where this question is from.
posted on November 6, 2013 
S.S
hmm im not rly sure either :D
posted on June 3, 2012 
chemistry
32.8mL
posted on February 18, 2012 
math
4.32194
posted on September 16, 2011 
PLEASE HELP!
Set acceleration to 0, since you want to keep the same speed.
posted on October 25, 2010 
calculus
thanks!
posted on September 13, 2010 
math
h(3h)
posted on May 19, 2010 
Geography
I love you.
posted on March 26, 2010 
science
can you tell me if i did this correct.my experiment is about how can you tell if someone is lying by their body language. my independent variable will be if i interview a person in a dim light while all person interview will be on regular or normal light.
posted on May 10, 2009