Most popular questions and responses by Nicolas
  1. physic

    A cannon ball is fired at an angle of 30° above horizontal with an initial speed vi = 55 m/s. Assume the cannon ball leaves the cannon at ground level and ignore air resistance. (a) How long is the cannon ball in the air? (b) How far from the base of the

    asked on November 21, 2014
  2. Science

    Identify the percent yield when 28.16 g of CO2 are formed from the reaction of 456.93 g of C8H18 with 256.0 g of O2. 2C8H18 + 25O2 → 16CO2 + 18H2O

    asked on March 10, 2019
  3. physics

    A dog sled team is pulling a sled across a flat patch of snow. The total force exerted by the four dogs is 475 N (applied horizontally). The sled (with driver on it) weighs 350 kg. and the coefficient of kinetic friction between the sled and the ground is

    asked on November 21, 2014
  4. English

    NEtholic REvolution -->How did agricultural advancements impact society? What are three reasons for that? How did agricultural advancements impact society?

    asked on May 4, 2014
  5. Pre-calculus

    How do I convert theta = 45 degrees Into a rectangular equation?

    asked on December 12, 2011
  6. physics

    a rock is tossed straight up with a speed of 30m/s. when it returns it falls into a hole 10m deep. what is the rocks velocity as it hits the bottom of the whole? how long would the rock in the air, form the instant it is released until it hits the bottom

    asked on August 30, 2012
  7. economy

    List the types of potential segmenting dimensions, and explain which you could try to apply first, second and third in a particular situation. If the of nature of the situation would affect your answer. Explain why

    asked on March 20, 2019
  8. Law and ethics

    which of the following best describes Formularies? A.A list of approved medications for which an insurance plan will reimburse subscribers B. Formulas for calculating coinsurance payments C. A list of generic drug ingredients for use in company medication

    asked on February 4, 2014
  9. Algebra

    A profit, P(X), for a certain item is a function relating the income from sales,S(X), and the cost of the item,C(X), The function is stated by the equation shown, where x is the number of items sold. P(X) = S(X) - C(X) When S(X) = 0.5x and C(X) = 10 +

    asked on April 22, 2015
  10. Algebra

    The equations for two functions are shown below. f(x) = x + 3 and g(x) = 2x - 5 Which intercept is farthest from the origin compared to the other three intercepts? A) x-intercept of f(x) B) y-intercept of f(x) C) x-intercept of g(x) D) y-intercept of g(x)

    asked on April 22, 2015
  11. physics

    A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 35.0 m above sea level, directed at an angle è above the horizontal with an unknown speed v0. The projectile remains in

    asked on September 14, 2011
  12. Chemistry

    In a closed container 1L of chlorine reacts with 1L of nitrogen and 1L of hydrogen. I need to give lewis structure, vsepr, box notation for valence electrons etc. (i know how to do this) But I'm doubting on what the reaction equation would be.

    asked on January 15, 2016
  13. English

    I have to write a 1000 word essay on connecting, Hamlet's dealing with rejection, depression to THE real world life. How it affect's me. So can you help me with some dot jots on how depression can relate tothe world (peoples situations) from hamlet?

    asked on May 4, 2014
  14. science/ chemistry

    Ethane (C2H6) is one of the many products of combustion of iso-octane, an important component of petrol. After release into the atmosphere, it is attacked by the hydroxyl radical, HO•, leading to its oxidation in the cycle of reactions when in a NOx-rich

    asked on September 14, 2008
  15. math

    Is { cos (a) + sin (b)} * { cos (a) + sin (b)}=1+ 2*cos (a)*cos (b)

    asked on December 19, 2014
  16. science/ chemistry

    Over 80 000 vehicles per day pass the site and the traffic is frequently congested. The surrounding area is described as forming a street canyon. The temperature at the site had reached 25 °C by 08:00, when the ethane concentration was recorded as 7.09

    asked on September 14, 2008
  17. cells

    what are the properties of blood cells. Since this is not my area of expertise, I searched Google under the key words "blood cells" to get these possible sources:

    asked on May 20, 2007
  1. Edtech

    yes b-l-a-n-k is right it is 100% correct.

    posted on April 17, 2018
  2. math


    posted on October 4, 2016
  3. ENG1511

    Apsolutely I'm suppose to write one

    posted on March 6, 2013
  4. English

    add home work

    posted on January 29, 2010
  5. science/ chemistry

    Please, anyone can help?

    posted on September 15, 2008
  6. science/ chemistry

    Any ideas? I'm really struggling

    posted on September 15, 2008