Friday
May 27, 2016

Posts by rajesh

Total # Posts: 17

science
assuming that sea water is an aqueous solution of NaCl its density is 1.025g/mL at 20C temperature and NaCl concentration is 3.5%(by mass), the normality of the sea water?
April 16, 2016

MAths
A four-wheel-drive vehicle is transporting an injured hiker to the hospital from a point that is 30 km from the nearest point on a straight road. The hospital is 70 km down that road from that nearest point. If the vehicle can drive at 30 kph over the terrain and at 180 kph on...
December 15, 2015

math
A jewelry box with a square base is to be built with copper plated sides, nickel plated bottom and top and a volume of 40cm^3. if nickel plating costs $2 per cm^2 and copper plating costs $1 per cm^2, find the dimensions of the box to maximize the cost of the materials?
December 15, 2015

math
In a shower 5cm of a rain falls. Find the volume of water on 2 hectares of land.
December 6, 2015

maths
1250
November 16, 2015

math
An urn initially contains 5 white and 7 black balls. Each time a ball is selected, it’s color is noted and it is replaced in the urn along with two other balls of the same color. Compute the probability that (a) one black and one white is selected. (b) exactly two black ...
November 8, 2014

physics
A bike of wheel radius. 40 cm at its highest speed its meter show 300RPM.then evalute the speed of the bike on this reading
May 17, 2014

chemistry
a) it's right
January 12, 2013

dynamics
a series of small packages are being moving by athin conveyor belt that passes over a 300mmradiusidler pulley.the belt starts from rest at time t=0 and its speed increses at a constant rate of 150mm/s*2.knowing that the coffient of static friction between the packages and the ...
October 8, 2012

dynamics
cars A and B are d=60m apart and traveling respectively with constant speeds v1=32km/h and v2=24km/h on an ice covered road.knowing that 45s after driver A apples his breaks to avoid overtaking car Bthe two cars collide,determine a)the uniform deceleration of car A b)the ...
October 8, 2012

general
-M-A-K- Clues *girls like it *boys use it *parents hate it
September 25, 2012

physics
find the force on unit positive q, when placed in the centre of a semicircular wire having uniformly distributed charge Q.
July 6, 2012

physics
Three blocks of masses M1=26kg,M2=38kg and M3=41kg are connected by 2 strings over 2 pulleys.Friction is negligible. 1. Determine the magnitude of acceleration and 2. the magnitude of the tension in each of two strings
October 24, 2011

physics
In a roller coaster ride cars and passengers slide down an incline of 36 degrees to horizontal if the friction is negligible find magnitude of acceleration
October 24, 2011

Social Studies
india capital
January 16, 2011

statistics
drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. If one item is chosen at random, what is the probability that it is rusted or a bolt ? In a study to test whether there is a difference between the average height of adult females born in...
April 14, 2010

chem
2.9
February 2, 2010

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