**Answer:**

<h2>1/7 kg</h2>

**Explanation:**

Find the diagram attached for better understanding of the question.

Given the mass of one of the blocks to be 1.0kg and accelerates downward at 3/4g.

g = acceleration due to gravity.

Let the block accelerating downward be M, mass of the other body be 'm' and the acceleration of the body M be 'a'.

M = 1.0 kg and a = 3.4g

According to newton's second law;

For body of mass m;

**T - mg = ma ... (1)**

For body of mass M;

**Mg - T = Ma ... (2)**

Adding equation 1 ad 2;

+Mg -mg = ma + Ma

Ma-Mg = -mg-ma

M(a-g) = -m(a+g)

Substituting M = 1.0 kg and a = 3/4g into the resulting equation;

3/4 g-g = -m(3/4 g+g)

3/4 g-g = -m(7/4 g)

-g/4 = -m(7/4 g)

1/4 = 7m/4

28m = 4

**m = 1/7 kg**

**Therefore the mass of the other box is 1/7 kg**

**Answer:**

A= 203 KJ

B= 54 Kg

**Explanation:**

The initial specific volumes and internal energies are obtained from A-12 for a given pressure and state. The enthalpy of the refrigerant in the supply line is determined using the saturated liquid approximation for the given temperature with data from A-11. The mass that has entered the tank is:

Δm = m₂ – m₁

= V(1/α₂ – 1/α₁)

= 0.05 (1/0.0008935 – 1/ 0.025645)Kg

= 54Kg

The heat transfer is obtained from the energy balance:

ΔU= +

m₂u₂ – m₁u₂ = +

= m₂u₂ – m₁u₁ –

= V/α₂u₂ - V/α₁u₁ –

=(0.05/0.0008935 . 116.72 – 0.05/0.025645 . 246.82 – 54.108.28) Kj

= 203 KJ

Answer:The trail mix is a heterogeneous mixture.

Explanation: Heterogeneous mixture is a mixture of the same phase like sugar dissolved in water.

Trail mix involved physical objects, thus it is a mixture of peanuts, small fruits etc.

That point is in northwestern Queensland province, in Australia.