12.

The twelve cranial nerves are: olfactory nerve, optic nerve, oculomotor nerve, trochlear nerve, trigeminal nerve, abducens nerve, facial nerve, vestibulocochlear nerve, glossopharengeal nerve, vagus nerve, spinal accessory nerve, and hypoglossal nerve.

:)

**Answer:**

**d= 794.4 cmExplanation:**

Given that

Speed ,V= 286 km/h

V=79.44 m/s

Given that time ,t= 100 ms

t= 0.1 s

We know that ( if acceleration is zero)

Distance = Speed x time

d= V t

Now by putting the values in the above equation

d = 79.44 x 0.1 m

d= 7.944 m

We know that 1 m = 100 cm

**d= 794.4 cm**

**Answer:**

Here's what I get

**Explanation:**

**A. Distance between A and B.
**

h = -½gt²

The stones go faster the farther they fall.

Stone A has already reached 5 m when B is released.

When B reaches 5 m, A has dropped further and is falling even faster.

The **distance between the stones increases with time**.

Figure 1 shows this effect in a graph of height vs. time.

**B. Speed of Stone B
**

v² = 2gh =2 × ( -9.81 m·s⁻²) × (-5 m) = 98.1 m·s⁻²

v = 9.9 m/s

The stone is travelling at **9.9 m/s** when it reaches 5 m.

**C. Velocity vs time
**

v = -gt

Both stones accelerate at the same rate.

When Stone B has reached 10 m at time t, Stone A is falling much faster.

Fig. 2 shows this in a graph of velocity vs time.

Gravity increases as distance decreases. Therefore, the answer is B.