Sunday
May 1, 2016

Total # Posts: 21

Dynamic
A stone is thrown up with a velocity of 20 m/s. While coming down, it strikes a glass pan, held at half the height through which it has risen and loses half of its velocity in breaking the glass. Find the velocity with which it will strike the ground.
April 22, 2016

Dynamic
A stone is dropped into a well with initial velocity zero from a point 5 m above the mouth of the well and the splash is heard after 7 s. A second stone is thrown into the well with initial velocity uₒ from the same point and the splash is heard after 5 s. Find the value...
April 22, 2016

Computer
Suppose there are b black, w white and r red tiles on a table. We are allowed to replace two tiles of different colors with the third color. Note one thing here that this third colored tile is from our pool containing infinite black, white and red tiles. If we start replacing ...
December 12, 2015

math
i think you have to find it by quadractic way or b- {b2-4ac] divided by 2 times a. i get what you mean but the answer is not right. h(t)=-4.9t2 +16.9t+0.5
January 21, 2015

math
height of soccer ball is h(t)=-4.9t2+16t+0.5 what is maximum height of the ball reaches
January 21, 2015

math
the population of a town is modelled by the functions p(t)=6t2+110t+3000. when will the population reach 6000? thanks
January 18, 2015

algebra
find a polynomial f(x) of degree 4 that has the following zeros: 0,7,-4,5 Leave your answer in factored form
March 24, 2014

chemistry
Two liquids A and B on mixing form an ideal solution. The vapour pressure of the solution containing 2 moles of A and 4 moles of B is 0.2 atm. If the vapour pressure of pure A at a certain temperature is 0.3 atm then what will be the vapour pressure of pure B at that temperature?
May 28, 2013

no it doesnt
May 22, 2013

but the red marble is replaced
May 22, 2013

A bag contains 5 red,2 blue,and 4 white marbles. What is the probabiltiy If Sam picked a red marble replaced it and picked a white marble?
May 22, 2013

Physics
A force of magnitude 7.50 {\rm N} pushes three boxes with masses m_1 = 1.30\,{\rm{kg}},m_2 = 3.20\,{\rm{kg}}, and m_3 = 4.90\,{\rm{kg}}, as shown in the figure(Figure 1) . (Ignore friction.) Find the magnitude of the contact force between boxes 1 and 2, and Find the magnitude ...
February 16, 2013

Physics
plz help me in Physics practicals. 1 chapter.
December 2, 2012

algebra
make five sets of balanced equations for the number 20:
February 12, 2012

chemistry
explain why ethanol bails at 73degress celcius
February 3, 2011

X y z company has authorized capital Rs.300000 at Rs.100 per share value company issued shares to the public as under. 1000 share at par value.
August 5, 2010

social studies
in which region we can find timber
September 18, 2008

math (factor)
3x3 âˆ’ 2x2 + 75x âˆ’ 50
September 22, 2007

Chemistry
practicals of chimistry
September 11, 2006

hystory
can the president and the vice president come from the same state No. The Constitution doesn't allow the electors to choose both a vice president and a president from the same state as the elector. This provision is easily sidestepped when one of the candidates changes his...
June 12, 2006

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