Answer
C .The final velocity is half of train car B’s initial velocity
Explanation
According to the law of conservation of momentum given by the product of mass and velocity, the velocity will be slightly that of the initial one due to increased mass (double mass). Here at least half of the kinetic energy is lost. Momentum is conserved but kinetic energy is converted to other energy forms after an inelastic collision. Kinetic energy is conserved in elastic collisions.
Answer: Thus the value of the equilibrium constant is
Explanation:
Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.
At eqm. conc. (0.20) M (0.25) M (1.20) M
The expression for equilibrium constant for this reaction will be,
The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.
Thus the value of the equilibrium constant is
Answer:
c) They come from polyunsaturated fats.
a) You must get them from food sources.
Explanation:
Polyunsaturated fatty acids are essential fatty acids. Omega-3 and omega-6 are the two types of important fatty acids. Saturated fatty acids, like all other fats, play a crucial function in the body. The most important fats, on the other hand, are those that the body cannot produce and must therefore be obtained from diet. These EFAs are made up of linoleic acid (omega-6 group) and alpha-linolenic acid (omega-3 group) (omega-3 group). Both categories of essential fatty acids are required for survival. EFA insufficiency is frequent in the general population for a variety of causes, as is a disproportionate intake of omega-6 fatty acids compared to omega-3 fatty acids. As a result, eating the correct meals is critical to ensuring that you get enough and the right kinds of vital fatty acids. But there's a lot more to the story. Increased consumption of certain important fatty acids, alone or in combination with other fats and chemicals, has been proven in studies to enhance health, aid in the treatment of certain disorders, and even improve body composition, mental and physical performance. Most of the lipids required by the human body may be synthesized from other fats or basic materials. Omega-3 fatty acids are an exception (also called omega-3 fats and n-3 fats). These are necessary fats, which the body cannot produce on its own and must obtain from diet.
Answer: m = nM= 242.8 g
Explanation: amount of MgCl2 is same as n(Mg)
M(MgCl2) = 95.21 g/mol
I think there both energy