Answer: Eye injury
Explanation: small material such as dust, dirt, and metal shards can harm your eyes with potential blindness or infection.
But where are the options?
Answer:
(a) The velocity of the collar = 1.624er-15.54eo in/s
(b) the acceleration of the collar=-49.94er-9.74eo in/s²
(c)the acceleration of collative rod =-3.284er in/s²
Explanation:
Check attachment for calculation
Answer:
1) The absolute pressure equals = 96.98 kPa
2) Absolute pressure in terms of column of mercury equals 727 mmHg.
Explanation:
using the equation of pressure statics we have

Now since it is given that at 6400 meters pressure equals 45 kPa absolute hence from equation 'i' we obtain

Applying values we get


Now the pressure in terms of head of mercury is given by

Applying values we get

Answer:
b. 2.3 kPa.
Explanation:
This situation can be modelled by Bernoulli's Principle, as there are no energy interaction throughout the multisection pipe and current lines exists between both ends. Likewise, this system have no significant change in gravitational potential energy since it is placed horizontally on the ground and is described by the following model:

Where:
,
- Pressures at the beginning and at the end of the current line, measured in kilopascals.
- Water density, measured in kilograms per cubic meter.
,
- Fluid velocity at the beginning and at the end of the current line, measured in meters per second.
Now, the pressure difference between these two points is:

If
,
and
, then:


(1 kPa is equivalent to 1000 Pa)
Hence, the right answer is B.