Questions Asked on
June 25, 2012

physics
A 380 piano slides 3.8 down a 22 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the force exerted by the man. b.Determine the work done by the man on the piano. c.Determine the work done by
asked by Anonymous 
business finance
Hot Wings, Inc., has an odd dividend policy. The company has just paid a dividend of $11.25 per share and has announced that it will increase the dividend by $9.25 per share for each of the next four years, and then never pay another dividend. Required: If
asked by james 
U.S. GOVERNMENT
1)The federal government has more expressed powers than implied powers. A) True B) False 2)Two inherent powers of the federal government are to regulate immigration and deport aliens. A) True B) False 3)Implied powers are essentially granted through the
asked by Booker Perry 
PHYSICS
3 FORCES ACT ON MOVING OBJECT.FIRST FORCE HAS MAGNITUDE OF 80.0N AND DIRECTED DUE NORTH.ANOTHER HAS MAGNITUDE 60.0N AND DIRECTED DUE WEST.WHAT IS THE MAGNITUDE AND DIRECTION OF THIRD FORCE,SUCH THAT THE OBJECT MOVE IN CONSTANT VELOCITY?
asked by Anonymous 
Statistics
A study was conducted in order to estimate u, the mean number of weekly hours that U.S. adults use computers at home. Suppose a random sample of 81 U.S. adults give a mean weekly computer usage time of 8.5 hours and that from prior studies , the population
asked by Pat 
Statistics
How large a sample of U.S. adults is needed in order to estimate U with a 95% confidence interval of length 1.2 hours?
asked by Pat 
math
a boy is 17 years old and his sister is as twice as old. when the boy is 23 what will be the age of his sister
asked by deni 
Physics
The track near the top of your favorite roller coaster has a circular shape with a diameter of 36 m. When you are at the top, you feel as if you weigh only onefifth of your weight on the ground. What is the speed of the roller coaster?
asked by Sierra 
Chemistry
We did a lab to find the atomic mass of Magnesium. We used an eudiometer and HCL and a mg ribbon. Explain in terms of moles, limiting reactants and experimental feasibility, why we use concentrated HCl (12M) instead of 1M or 6M?? Would the calculated
asked by Denise 
chemistry
What is the percentage purity of sample if 3.92g of mohr's salt react completely with 50 ml N/10 Kmno4 solution
asked by ketaki 
Physics
The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer
asked by Jay 
microbiology please answer.
What are the advantages and disadvantages of using wet mount preparation instead of stained specimens to observe microorganism?
asked by bing 
Physics
Mars has two moons, Phobos and Deimos. It is known that the larger moon, Phobos, has an orbital radius of 9.4 106 m and a mass of 1.1 1016 kg. Find its orbital period.
asked by Sierra 
math
Figures obtained from a city's police department seem to indicate that of all motor vehicles reported as stolen, 61% were stolen by professionals (P), whereas 39% were stolen by amateurs (primarily for joy rides) (A). Of those vehicles stolen by
asked by Anonymous 
algebra 1
Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. 5x=y=15 3x+2y=9
asked by Anonymous 
biology 2
The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the
asked by sheehan 
Physics
The track near the top of your favorite roller coaster has a circular shape with a diameter of 36 m. When you are at the top, you feel as if you weigh only onefifth of your weight on the ground. What is the speed of the roller coaster?
asked by Sierra 
math
Jack and Jill run 10 kilometers. They start at the same point, run 5 kilometers up a hill, and return to the starting point by the same route. Jack has a 10minute head start and runs at a rate of 15 km/hr uphill and 20 km/hr downhill. Jill runs 16 km/hr
asked by hemant mishra 
Physics
The region of the solar system between Mars and Jupiter contains many asteroids that orbit the Sun. Consider an asteroid in a circular orbit of radius 4.3 1011 m. Find the period of the orbit.
asked by Sierra 
chemistry
5.0g of magnesium metal reacted with 1000cm3 of 4.5M of HCl solution to produce hydrogen gas. Calculate the amount of HCl left and the number of hydrogen molecules produced
asked by Shaibu Abdulai 
Physics plz help
(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3kg mass to drop 1.0 m in 1 week. What percentage of the
asked by Ally 
algebra2
What is the value of the discriminant for the quadratic equation 2a2+ 7a + 3 = 0? Please Help!
asked by laltk 
Physics
A ladder of mass 39.4 kg and length 2.88 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.282; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can
asked by James 
economics
Wilpen Company, a pricesetting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification:
asked by Anonymous 
anth
why is anthropology necessary in a career/life?
asked by kelly 
Physics
A mass of 60kg is on the edge of a plank. The Plank is 25 m long. There is a wedge 10 m from the 60 kg. Where would you position a 40kg so the plank would not rotate? If you placed the 40 kg at the end, where would you put a 10 kg mass to keep it balanced?
asked by Terry 
Precalculus
Given sinx= 1/8 and tanx
asked by Jake 
Precalculus
If Sin A=3/5 and cos B= 12/13, find the value of sin(AB) if Angle A is in Quadrant I and angle B is in Quadrant III.
asked by Sammy 
Physics
2 queations: 1) a proton enters a magnetic feild at a right angle to the field. an alpja particle enters the same field at the same angle but with twice the speed. once in the magnetic field both particles move in a circular path. the raito of radius of
asked by Anonymous 
Physics
Uranus makes one complete orbit of the Sun every 83.8 years. Calculate the radius of the orbit of Uranus. Hint: It is a very good approximation to assume this orbit is circular.
asked by Sierra 
Physics
The average human has a density of 950 kg/m3 after inhaling and 1018 kg/m3 after exhaling. (a) Without making any swimming movements, what percentage of the human body would be above the surface in the Dead Sea (a lake with a water density of about 1230
asked by Betty 
chemistry
5.0g of magnesium metal reacted with 1000cm3 of 4.5M of HCl solution to produce hydrogen gas. Calculate the amount of HCl left and the number of hydrogen molecules produced
asked by Shaibu Abdulai 
algebra2
Which choice could be the equation of a line perpendicular to the line represented by this equation? Which choice could be the equation of a line perpendicular to the line represented by this equation? y = 5x− 2 help please!!
asked by 26kllt 
English
1. Oh, this is him.  Right. 2. Oh, this is he. Right. (Which one is right or grammatical?)
asked by rfvv 
Grammar
Instructions: Add commas where needed in the following sentences. Some sentences may not require commas. (Rule 2a) Work: 1. Students parents teachers and visitors attended the school play. So i put the commas between students and parents, and i put it
asked by Losa 
Physics
(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3kg mass to drop 1.0 m in 1 week. What percentage of the
asked by Ally 
Algebra II
If Y varies inversely as X^2, determine what Y would be if X=2 and another point on the equation is (1,8) How would I go about working this problem out?
asked by Greg B. 
Physics
A 2 kg mass hangs at rest from a spring that causes a displacement of 25cm. What is the spring constant, k, for this spring?
asked by Wanda 
psychology
Write a paper that describes the character’s personality in terms of the Big Five personality traits.
asked by anon 
Physics  wavelenth of blue light
How do i find the wavenelgth of blue light?
asked by Anonymous 
math
th whole arc making up the circle measures 360
asked by tata 
algebra2
If the discriminant of a quadratic equation is equal to zero, how many real solutions does the equation have? A. 0 B. 1 C. 2 D. 3 please help!!
asked by laltk 
Six Sigma
Period Cycle Time 1 45 2 33 3 44 4 30 5 51 6 47 7 39 8 34 9 69 10 43 11 29 12 38 13 45 14 49 15 73 16 38 17 50 18 40 19 57 20 36 21 31 22 46 23 40 24 51 25 48 26 37 27 42 28 50 Calculated RBar: Upper control limit for the range: Upper control limit for
asked by Dave 
Statistics
Test a claim p=0.5 with the significance level of 0.05 and n=49 calculate beta when the true probability porportion is 0.7.
asked by meena 
algebra ll
Solve for f. (f  12)2 = 25 A. f = 5 or f = −5 B. f = 12 or f = −12 C. f = 17 or f = 7 D. no solution
asked by leo 
geometry
conditional statements
asked by Priscila 
statistics
a the gym i notice women tend to work out together more then men. males together at gym 5 alone 7 women alone 6 together 6 what statistical test should i use what is the Ha and Ho what is the appropriate analysis and should the Ho be rejected
asked by dave 
RES/351
the business research process by describing the business research process from your experience in the workplace or in an article you find through the University Library I don't have anyh experience does any one know of an article I could use?
asked by a 
psychology 240
Factors that Determine What, When, and How Much We Eat, in the text, does your personal experience support these concepts? Why or why not? Provide examples
asked by cynthia 
math 091
s+(s)+1/9(9)
asked by beth 
Physics
If a car accelerates from rest to 15 m/s for a distance of 200 m. What is the magnitude of acceleration?
asked by Lollie 
U.S. GOVERNMENT
Could someone PLEASE help me understand Due process. THANK YOU!!!
asked by Booker Perry 
dressmaking
IN making a twopiece flared skirt,the amount of flare is limited by the A) length of the skirt B) type of fabric C) size of the figure D) tendency to sag I cant decide between A,C or D because it does mention that if more flare is wanted,allow greater
asked by Sarah 
History
Following World War II, what factors led to Japan's economic success? A. The adoption of eastern economic philosophy that emphasized supply and demand economy. B. The concentration on the production of highquality agricultural products C. Efficient,
asked by Chicken 
Social studies
1. How many legs does a grasshopper have? 2. How many legs does a spider have?
asked by rfvv 
U.S. GOVERNMENT
1)West Virginia has to honor a marriage that was granted in Indiana. A) True B) False 2)The National Government expects the money States receive from grantsinaid programs to be used for certain items that it approves. A) True B) False 3)The National
asked by Booker Perry 
english
we ________ _____________ started our trip earlier in the morning. fill it in with a helping verb
asked by Taylor 
English
1. Oh, this is him.  Right. 2. Oh, this is he. Right. (Which one is right or grammatical?) English  Writeacher, Monday, June 25, 2012 at 9:57am #2 is the grammatically correct one.  Thank you. Q1) Can we use "This is him."
asked by rfvv 
government
What does the term â€œfilibusterâ€ mean, and how is it used by individual Senators and for what purposes? What does â€œclotureâ€ mean, and how is it used by the leadership of the Senate and for what purposes? What is your opinion of these
asked by carlos 
physics
if the reaction time is 10.0s, how far will the car travel before hitting the brakes? Vf = 27.42 m initial speed = 80 km/hr coefficient of friction = 1.00
asked by jb 
geometry
the arc length of AB is 2^pi ft. find the radius of the circle ABC=43 degree. round your answer to the nearest hundredth.
asked by Nancy 
Foreign languages
Writeacher, could you please check these sentences? Thank you. 1) Who was Henrietta Lacks? In what way did she contribute to the study of cancer? 2) Is it possible to stop the aging process? How did Lord Henry define beauty and old age respectively? 3) Who
asked by Mike 
Art
I left out the following questions. Could you please check them? 1)In the English section of your dissertation you focused on Emily !@#$%^&inson whose unsatisfied hunger (starvation) seems to be above all an emotional one. 2)How did her own life influence
asked by Mike 
history
9. Elias Howe invented which of the following?
asked by Sam 
calculus
Okay, so I have this problem... this was the original: (t^21?t^2+1)^3 and then I got the derivative which looked like this after I finished all the other steps: 3(t^21/t^2+1)^2d(t^2+1)(2t)(t^21)(2t)/ (t^2+1)^2 So now, the answer is 3(t^21/t^2+1)^2d
asked by gagaformath 
Finance
YOU DEPOSIT $5,000 INTO THE FIRST NATIONAL BANK OF FIN 301 AND EARN 2.5% COMPOUNDED CONTINUOUSLY. HOW MUCH WILL YOU HAVE IN 5 YEARS?
asked by JAMIE 
physics
How high will a 1.95 rock go from the point of release if thrown straight up by someone who does 66.5 of work on it? Neglect air resistance.
asked by Anonymous 
English
1. I like apples and small. 2. I like apples and smalls. (#1 seems to be wrong. What about #2? Is Sentence two correct?)
asked by rfvv 
Case Study
Identify and give examples of three techniques you would use to explore Sally's story. Your examples should be worded as if you are actually speaking to the client. What goals would you want to identify for Sally, based on the information available?
asked by Audrey 
Kinder math
Cover the teddy bears in the top row with different color teddy bear counters. Color the teddy bears in the bottom row to show the colors.
asked by Stela 
government
what is a good example of cloture?
asked by carlos 
Math
A student answered the following skilltesting question to try and win a prize: (4)^3(2)^4/2^2+5^2*7^0 The students answer was 5. Did the student win the prize? I couldn’t seem to figure out how to answer this question. I got the answer 13, but my
asked by Erika 
Physics  Half life
an artifact has a starting mass of C14 of 200 g and a remaining mass of 0.78125 g. how old if the artifact? [4.58^4 years]
asked by Anonymous 
Bio
I have a 67% in bio and our final exam is worth 30%. how much would I have to get on the exam to pass the course?
asked by Rebecca 
physics
if a neutral shere and a sphere with a charge of 14 C are brought together, then separated, what would be the charge on each sphere
asked by charles 
physics
if a train is travelling with a speed equal to light and a girl is running inside it in the way the train is running.an observer see the girl from outside running.what is the speed of the girl AND WHY??
asked by mukul bawa 
algebra
each of numbers below is is a solution of the inequality 2x + 3 > 7 .. except ... 3 6 1 5
asked by ahnaliyah 
Maths  Ant Colony
A colony of ants is growing so that the total number of ants present, A, after a number of weeks, t, is shown in the table. t 5 10 15 20 25 30 A 140 200 280 400 570 800 The food supply available is such that it can feed A ants at any given time, t
asked by Sinha 
World History
I am hoping someone would be able to assist with a multiple question I have. The answer I have is B that Germany disassociated/distanced themselves from it. However, other resources denote Germany did claim/denied that it ever happended. This is very
asked by Myst 
English
1. It is green and yellow. 2. It is green but yellow. 3. It is green but not yellow. 4. It is green or yellow. (Which one is not grammatical? Thank you!)
asked by rfvv 
ateneo
why do people need to follow rules? Use "looked in a dictionary in a sentence as subjectpredicate.
asked by julian 
maths
subtract a). 5/12 from 7/12 b). 5/12 from 0 c). 5/9 from 7/9
asked by JOSHI KRATIKA>>>>>> 
Physics
Find the gravitational force of the Sun on Jupiter.
asked by Sierra 
Physics
The pressurevolume graph shows an engine cycle where the working substance is an ideal monatomic gas (γ = 5/3). The process AB is adiabatic. At point A, the pressure is 2.70×105 Pa and the volume is 0.0180 m3. At point B, the volume is 0.0450 m3.
asked by Jamie