Buma
Most popular questions and responses by Buma
Physics
An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls
asked on November 11, 2017 
Physics
What is the average kinetic energy of nitrogen molecule at 20°C
asked on October 22, 2017 
Maths
Formulate a general method for finding the distance between two skew (i.e., non intersecting) line in space. (Hint: the shortest line segment joining the two skew lines will be perpendicular to both of them).
asked on December 19, 2018 
Physics
A car is traveling north along a straight road at 50 km/h. An instrument in the car indicates that the wind is coming from the east. If the car's speed is 80 km/h, the instrument indicates that the wind is coming from the northeast. Determine the speed and
asked on May 4, 2019 
Math
If a certain number is increased by 5, one  half of the result is three  fifths of the excess of 61 over the number. Find the number
asked on October 31, 2017 
Physics
An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls
asked on November 11, 2017 
maths
Let V be the set of vectors (2x3y, x+2y, y, 4x) with x,y elements of 2 dimensional space. Addition and scalar multiplication are defined in the same way as on vectors. Prove that V is a vector space. Also, point out a basis of it.
asked on December 19, 2018 
management
If a company produces four products A, B, C and D then the production manager wants to decide which product should be produced in large amount or small amount to increase profit or to decrease cost which industrial concept should use the production manager
asked on February 2, 2019 
Static Mechanics
How to cut the middle member in a k truss (>
asked on January 12, 2019 
Physics
There is gas in a gas container. A valve on the container will be opened and a quarter of the gas quantity will be released to the outer range. Due to this process the temperature of the gas will be decreased by 20%. What is the decrease of the gas
asked on October 22, 2017 
Physics P
8.31 Wh (watthours) heat is transmitted to 1 mole single atomic ideal gas. The gas temperature is 27Â°C and the pressure is constant during the process (slow process). What is the temperature? What is the change of the internal energy of the gas? What is
asked on October 23, 2017 
Math
Before 5 years a man was 3 years times his boy but after 10 years the father's age will be 6 more than 2 times his boy
asked on December 6, 2017 
Physics
8.31 Wh (watthours) heat is transmitted to 1 mole single atomic ideal gas. The gas temperature is 27°C and the pressure is constant during the process (slow process). What is the temperature? What is the change of the internal energy of the gas? What is
asked on October 23, 2017 
Maths
Before 5 years a man was 3 years times his boy but after 10 years the father's age will be 6 more than 2 times his boy. Find the age of the father. And the age of the son.
asked on December 7, 2017 
Math
Before 5 years a man was 3 years timeshis boy but after 10 years the father's ge will be 6 more than 2 times his boy Didn't get the question
asked on December 6, 2017 
physics
what is the otto cycle of petrol engine
asked on October 29, 2017 
Chemistry
What is saponification (soap making) ?
asked on December 4, 2017 
Chemistry
What is saponification (soap making) ?
asked on November 17, 2017

Math
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posted on October 31, 2017 
Physics
What about the answer? I didn't understand any thing
posted on October 23, 2017