kiranrajnishad8

Entropy appears to be the only reason we have a forward direction of time.. Energy at lower entropy can do more work than energy at higher entropy.. AN orderly energy is more useful than one that is less orderly. The essential concepts are embodied in Maxwell & S equations.. Einstein thought that if the speed of light was determined by two constants, Mu naught and Epsilon Naught.. These two constants determine the speed. They measure the resistance of space to changing electrical and magnetic fields.. This was one of the postulates of special relativity.. The second postulate was the principle of relativity, meaning the laws of physics are the same for all observes who are moving at the same velocity relative to each other.. There are many equations in quantum mechanics, but in my view. There are three principles that are the most important to remember. These principles are expressed. In three equations. The first idea was championed by Max Planck,, arguably the father of quantum mechanics.. The second idea is expressed by the Heisenberg uncertainty principle.. The third idea is that prior to measurement, quantum systems are in superposed states..

A quantum system can be an elementary particle like an electron or even atoms and molecules that are sufficiently isolated.. Isolated means that they haven&t interacted with something that would cause their wave function to collapse.. THis is the non--deterministic reality that Einstein had a hard time accepting..

The readings for this concentrate on mercantilism, the Triangle Trade, slave plantations in the colonies, and the effects of the Enlightenment on society. On a page or two for this assignment, respond to the question:

Hunt discusses some of the conflicts that existed in mercantile philosophy and society during this time, particularly in relation to the pursuit of profit and the function of the state. How did England "rectify," if you will, the mercantile era's relentless pursuit of riches in the face of long-standing "historical" disapproval of such behavior (e.g., Roman Catholicism)?

A buffer solution is prepared by mixing 65.5 mL of 0.768 M sodium hydrogen sulfite with 25.3 mL of 0.0706 M sodium sulfite.
Calculate the pH (to two decimal places) of this solution. pKa hydrogen sulfite ion is 7.19

Assume the 5% approximation is valid and that the volumes are additive.

Calculate the pH (to two decimal places) of the buffer solution after the addition of 0.0173 g of sodium sulfite (Na₂SO₃) to the buffer solution above.
Assume 5% approximation is valid and that the volume of solution does not change.

1.Determine the pH (to two decimal places) of a solution prepared by adding 51.3 mL of 0.0915 M sodium hydrogen sulfite (NaHSO3) to 39.4 g of sodium sulfite (Na2SO3). Assume the volume of the solution does not change and that the 5% approximation is valid.

2.Calculate the pH (to two decimal places) of the buffer solution after the addition of 1.15 g of sodium butanoate (NaC₃H₇COO) to the buffer solution above.
Assume 5% approximation is valid and that the volume of solution does not change.

3. The mole fraction of an aqueous solution of ammonium nitrite is 0.494. Calculate the molarity (in mol/L) of the ammonium nitrite solution, if the density of the solution is 1.45 g mL^-1.

4. Determine the mole fraction of calcium nitrite in a 9.28 M aqueous solution of calcium nitrite. The density of the solution is 1.47 g mL^-1.

Please answer the following 4 questions. Will upvote

Two bus stations are 930 km apary at midnight buses leave each station heading towards each other the first bus travels 10 km/h faster than the second bus but the first bus stops for one hour while the second bus travels non-stop At 6:00 am the buses meet at a statioj how far is the station from each of the original points of departure?

Determine the mole fraction of magnesium sulfite in a 5.67 M aqueous solution of magnesium sulfite. The density of the solution is 1.30 g mL^-1.

An aqueous solution of magnesium oxalate is prepared by dissolving 4.46 g of magnesium oxalate in 1.51×10² g of water. The density of the solution is 1.01 g mL^-1.

a) Determine the mass percent of magnesium oxalate in the solution.

b) Determine the mole fraction of magnesium oxalate in the solution.

An aqueous solution of nickel(II) chloride is prepared by dissolving 5.61 g of nickel(II) chloride in 4.53×10² g of water. The density of the solution is 1.34 g mL^-1.


Determine the molarity (in mol/L) of nickel(II) chloride in the solution.

Magnesium has a density of 1.74 g/ml - which is pretty low for a metal, but still much greater than the density of the water or the HCI solution. So why did the little piece of Mg float up to the top of the tube when it broke free of the wire loop.

A 2000-kg car moving with a speed of 20 m/s collides with and sticks to a 1500-kg car at rest at a stop sign. Show that because momentum is conserved in the rest frame, momentum is also conserved in a reference frame moving with a speed of 10 m/s in the direction of the moving car.

calculate the value of the constant n in the given radial function when this radial function is normalized. the radial function is defined as follows:

 R(r) = Nr^(2)e ^(-ar)^2  here, n is the normalized constant and a is the positive constant.

2x + 3y - 5z = 7
4x - 6y + 10z = 14
3x + 2y - 4z = 1

(a) Write the augmented matrix for this system of equations.

(b) Use elementary row operations to reduce the augmented matrix to row-echelon form.

(c) Write the system of equations corresponding to the row-echelon form of the augmented matrix.

(d) Determine the solution set of the system of equations.