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2 years ago

What is the hardest stage of BME

Physics

2 answers:

dexar [7]2 years ago

5 0

Answer:

Medical software generation

san4es73 [151]2 years ago

3 0

Answer:

Neural Engineering and Tissue Engineering

Explanation:

• BME is Biomedical Engineering. It has various topics such as Anantomy, Physiology, Neural Engineering and Tissue engineering, Medical mechanisation and others.

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A truck loaded with sand accelerates along a highway. The driving force on the truck remains constant. What happens to the accel

Helga [31]

Answer:

As the trailer leaks sand at a constant rate through a hole in its bottom, its acceleration increases at a steady rate. (Option A)

Explanation:

F = ma

where;

F is the force applied on the truck

m is the mass of the truck

a is the acceleration of the truck

If the driving force on the truck remain constant, then;

m₁a₁ = m₂a₂

a₁ is the initial acceleration

a₂ is the final acceleration

m₁ is the initial mass of the truck and loaded sand,

m₂ is the final mass of the truck and loaded sand, which decreases as the sand leaks at a constant rate.

a₂ = (m₁a₁ )/(m₂)

since m₁ > m₂, a₂ > a₁

Therefore, as the trailer leaks sand at a constant rate through a hole in its bottom, its acceleration increases at a steady rate.

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3 years ago

A motorcyclist traveling 35 mph slows at he approaches a stos sign. This is an example of..

sergeinik [125]

The correct answer is B. Velocity

7 0

3 years ago

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Which type of current is produced by a wire breaking magnetic field lines and changing the polarity?

Hoochie [10]

Answer:

Alternating current will produced by a wire breaking magnetic field lines and changing the polarity.

Explanation:

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3 years ago

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An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C, and 75

katen-ka-za [31]

Answer:

Part A) 3899 kPa

Part B) 392.33 kJ/kg

Part C) 0.523

Part D) 495 kPa

Explanation:

Part A

First from the temperature at state 1 the relative specific volume and the internal energy at that state are determined from:

$u_{1}$ = 214.07 kJ/kg

$\alpha$ $r_{1}$ = 621.2

The relative specific volume at state 2 is obtained from the compression ratio:

$\alpha$ $r_{2}$ = $\frac{\alpha r_{1} }{r}$

=621.2/ 8

= 77.65

From this the temperature and internal energy at state 2 can be determined using interpolation with data from A-17(table):

$T_{2}$ = 673 K

$u_{2}$ = 491.2 kJ/kg

The pressure at state 2 can be determined by manipulating the ideal gas relations at state 1 and 2:

$P_{2}$ = $P_{1} r\frac{T_{2} }{T_{1} }$

= 95*8*673/300

= 1705 kPa

Now from the energy balance for stage 2-3 the internal energy at state 3 can be obtained:

$deltau_{2-3} =q_{in}\\ u_{3} -u_{2} =q_{in}\\u_{3}=u_{2}+q_{in}$

= 1241.2 kJ/kg

From this the temperature and relative specific volume at state 3 can be determined by interpolation with data from A-17(table):

$T_{3}$ = 1539 K

$\alpha r_{3}$ = 6.588

The pressure at state 3 can be obtained by manipulating the ideal gas relations for state 2 and 3:

$P_{3} =P_{2} \frac{T_{3} }{T_{2} }$

= 3899 kPa

Part B

The relative specific volume at state 4 is obtained from the compression ratio:

$\alpha r_{4}= r\alpha r_{3}$

= 52.7

From this the temperature and internal energy at state 4 can be determined by interpolation with data from A-17:

$T_{4}$ =775 K

$u_{4}$ = 571.74 kJ/kg

The net work output is the difference of the heat input and heat rejection where the heat rejection is determined from the decrease in internal energy in stage 4-1:

$w=q_{in}-q_{out}\\q_{in}-(u_{4} -u_{1} )\\=392.33 kJ/kg$

Part C

The thermal efficiency is obtained from the work and the heat input:

η= $\frac{w}{q_{in} }$

=0.523

Part D

The mean effective pressure is determined from its standard relation:

MEP= $\frac{w}{\alpha_{1}- \alpha_{2} }$

= $\frac{w}{\alpha_{1}(1- \frac{1}{r} }$

= $\frac{rwP_{1} }{RT_{1} (r-1) }$

=495 kPa

8 0

4 years ago

What are the characteristics of a magnetic force

fomenos

Answer:

Magnetic field lines never intersect each other.

They originates(from north pole) and terminates (to south pole) perpendicularly from/to the surface of magnet. Also magnetic field lines continues through the magnet.

Magnetic field is denser at the pole and becomes less dense as we move away from the poles.

Explanation:

8 0

3 years ago

What is the hardest stage of BME​

What is the hardest stage of BME