AC
Popular questions and responses by AC
Chemistry
Write a balanced equation for the reaction that occurs in each of the following cases. (Use the lowest possible coefficients. Include statesofmatter under SATP conditions in your answer.) I think have the reactions, but I'm stuck with the states of
asked on March 11, 2017 
...Physics...
A jet moving at 500 km/h due east moves into a region where the wind is blowing at 120 km/h in a direction 30 degrees north of eat. What is the new velocity and the direction of the aircraft relative to the ground? I am completely lost on this question...
asked on October 7, 2007 
Stats
Twentyfive percent of all deaths (all ages) are caused by diseases of the heart. Ischemic heart disease accounts for 16.4% of all deaths and heart failure for 2.3%. Choose one death at random. What is the probability that it is from ischemic heart disease
asked on October 25, 2017 
Math
Makoto's lacrosse practice last 1 3/4 hours. This week he attended all of the practice on Monday and Wednesday, but he had to leave halfway through practice on Friday. How many hours did Makoto's spend at lacrosse practice this week? 1 3/4 + 1 3/4 +1 3/4.
asked on April 7, 2015 
Math Homework
Sheila's first jump was 3 yards 2 feet 8 inches her second was 2 yards 1 foot 10 inches how much longer was her first jump? express your answer in inches I'm having a hard time setting this up
asked on April 10, 2015 
Physics
A track star in the long jump goes into the jump at 12 m/s and launches herself at 20 degrees above the horizontal. How long is she in the air before returning to Earth? (g= 9.81 m/s squared) I tried using some formulas but I'm using all of the wrong
asked on October 7, 2007 
Math
As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to
asked on April 10, 2015 
Statistics
Recall that very satisfied customers give the XYZ Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ Box wishes to use the random sample of 65 satisfaction ratings to provide evidence supporting the claim that
asked on September 26, 2011 
Coulomb's Law
Two charges attract each other with a force of 16N. What will be the new force if the distance between them is reduced to 1/2 of its original value?
asked on January 26, 2016 
Homework
Mary Ann poured 250 milliliters of fruit punch into 13 glasses. How many liters of fruit punch did she pour? a. 3.25 Liters b. 32.5 liters c. 325 liters d. 3,250!liters I think it's (a. 3.25), because 250 milliliters converted is 0.25 and 0.25 x 13 = 3.25
asked on April 10, 2015 
Physics
A droplet of ink in an industrial ink jet printer carries a charge of 1.6 x 10 to the power of 10C and is deflected onto paper by a force of 3.2 x 10 to the power of 4N. What is the strength of the electric field to produce this force?
asked on January 12, 2010 
Math
Mr Graham buys clay for the art class in 25pound blocks. He gave out a total of 15 pounds of clay to a class of students for a project. Each student got 1/2 pound of clay. How many students are in the class?
asked on March 24, 2019 
Math
As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to
asked on April 11, 2015 
Homework
Laing enlarged a photograph to 1 3/4 times it's original size. The original photograph was 5 inches wide. What was the width of the enlarged photograph?. A. 5 3/20 B. 5 3/4 C. 6 3/4 D. 8 3/4 I think it's D I multiplied 5/1 x 7/4= 35/4 = 8 3/4
asked on April 10, 2015 
Math help
Which expression represents the quotient 3.36/6. A. (3/6)+(0.03/6)+(0.6/6) B. (3/6)+(0.30/6)+(0.06/6) C. (6/6)+(0.03/6)+(0.6/6) D. (6/6)+(0.30/6)+(0.03/6) I think it's B but not sure of how I really got the answer anymore.
asked on April 8, 2015 
Physics
A stoane propelled from a catapult with a speed of 60ms1 attains a height of 120m. Calculate the time of flight, the angle of projection, the range
asked on February 15, 2020 
Math
Jamal found 1/3 gallon of milk in the kitchen. He poured it into 5 equal size cups. What fraction of a gallon of milk is in each cup? 1/3 of 5 3 x 5 = 15 1/15
asked on April 7, 2015 
social studies
what impact did the establishment of french and dutch colonies in north america have on native americans?
asked on September 19, 2009 
Calculus
Solve. (A) 2sin^2 x = 1 (B) tan^2 x = 3
asked on September 24, 2007 
CALCULUS  need help!
Determine the limit of the trigonometric function (if it exists). 1. lim sin x / 5x (x > 0) 2. lim tan^2x / x (x >0) 3. lim cos x tan x / x (x > 0)
asked on October 1, 2007 
ssc 101
What is subculture
asked on December 6, 2011 
physics pressure/gas
Suppose 2500 J of heat are added to 4.1 mol of argon gas at a constant pressure of 120 kPa. (Assume that the argon can be treated as an ideal monatomic gas.) Find the change in internal energy. I started using U = N (3/2 kB T). But I have too many
asked on June 21, 2007 
algebra
Please help solve with elimination method. 6x+6y=18 7x+5y=9
asked on October 29, 2014 
algebra
a 13 foot ladder is placed so that it reaches to a point on the wall that is 2 feet higher than twice the distance from the base of the wall to the base of the ladder. How high does the ladder reach?
asked on May 7, 2012 
Pre cal
find the value of cotè given secè=5/4 and cscè
asked on December 2, 2010 
Math
Draw a parallelogram with an area of 48 sq cm with a decimal factor oft the length ,width or both
asked on February 23, 2015 
Math
Suppose a planet has a radius of 5,000 km. Starting at the point on its surface at 0 degrees longitude and 0 degrees latitude,find the distance to the point on its surface at 30 degrees longitude and 60 degrees latitude.
asked on November 4, 2015 
Calculus
find the absolute extrema for f(x)= (5x) with a closed interval of 1,2
asked on December 17, 2014

Physics
F_drag = 1/2 P V^2 C_DA = 0.5*0.002377*59^2*1555 = 6433 lbf W = 3922000+150000+4451=4076451 lbs 7% grade = 4 degree F_rolling= W*cos theta*Crr = 4076451*cos4*0.015=60998 lbf F_weight=W *sin theta = 4076451*sin4=284359 lbf F_sum = 6433+60998+284359=351790
posted on November 27, 2019 
History
wrong
posted on August 20, 2019 
math please help!!!
The answer is 228. This is because of 48 *4=192. Then 192 + 36= 228. This is the correct answer for the surface area of the pyramid.
posted on May 28, 2019 
Math
THANK YOU MS. SUE!!
posted on March 24, 2019 
Math
what are the others
posted on January 14, 2019 
English
is this right
posted on December 12, 2018 
Math
he right ps helper is
posted on November 8, 2018 
Art
hey are the answers right
posted on October 16, 2018 
Science
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP answer 1  19
posted on October 9, 2018 
math
What’s the answer
posted on November 14, 2017 
spelling
hi hi hi hi hi hi hi hi
posted on August 16, 2017 
Chemistry
Thanks scott! Just a quick correction, the reaction in part C is actually 2Na + O_2 > Na_2O_2
posted on March 11, 2017 
Math
17 bj n lm mnh j mj nj mjk nj
posted on September 27, 2016 
chemistry
You in Davis' class?
posted on April 27, 2016 
math
Name 300 in two different ways
posted on September 10, 2015 
Music
i have the same test
posted on December 8, 2012 
chem lab (webwork)
the answer is 7 for HCL and 8.72 for HC2H3O2
posted on May 1, 2011 
Marketing
To compete more successfully with its many competitors offering packaged cookies, Famous Amos added its own line of extra chunky premium cookies. This seems to be an effort at: A. Market development. B. Combination. C. Market penetration. D. Product
posted on September 11, 2010 
Pigskin geography
#16 what is the host team which is in a state with two peninsula?
posted on November 21, 2007 
Physics
Thanks! ^^
posted on October 7, 2007