South atlantic chemical company manufactures industrial chemicals in rio de janeiro. brazil. the company plans to
introduce a new chemical solution and needs to develop a standard product cost. the new chemical solution is made by combining a chemical compound (nyclyn) and a solution (salex), heating the mixture, adding a second compound (protet), and bottling the resulting solution in 10-liter containers. the initial mix. which is i i liters in volume. consists of 12kilogramsof nyclyn and 9.6 liters of salex. a i-iiter reduction in volume occurs during the boiling process. the solution is cooled slightly before 5 kilograms of protet are added. the addition of protet does not affect the total liquid volume, the purchase price of the direct materials used in the manufacture of this new chemical solution are given below.
(the realis brazil's national currency. on the day this problem was written. the real was equivalent to .4378 u.s. dollar.)
nyclyn 1.45 real per kilogram
salex 1.80 real per liter
protet 2.40 real per kilogram
required: determine the standard material cost of a 10-liter container of the new product. (remember to express your answer in terms of the real. the brazilian national currency.)
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Ответ:
Answer : The kinetic energy of the rock is, 5880 J
Explanation :
Potential energy is defined as the energy possessed due to the height of the object.
Mathematically,
where,
m = mass of rock = 20 kg
g = acceleration due to gravity =![9.8m/s^2](/tpl/images/0161/8780/38866.png)
h = height of the bridge from where the rock = 30 m
Putting values in above equation, we get:
According to the law of conservation of mass,
Potential energy = Kinetic energy = 5880 J
Thus, the kinetic energy of the rock is, 5880 J