3 years ago

What engine or car do you think gets better gas mileage a

Engineering

1 answer:

defon3 years ago

5 0

Answer:

A muscle care

Explanation:

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Nataly_w [17]

Outdoor advertising

8 0

4 years ago

If p = .8 and n = 50, then we can conclude that the sampling distribution of pˆ p ^ is approximately a normal distribution.

defon

Answer:

It is true that the sampling distribution of the proportions is approximately a normal distribution.

Explanation:

Solution

Given that:

N = 50

P= 0.8

Thus

p ^ =√p(1-p)/n

p ^=√0.8 (1-0.8)/50

p ^= 0.0566

Therefore,we conclude that the sampling distribution of the proportions is approximately a normal distribution.

4 0

3 years ago

The ______ number of a flow is defined as the ratio of the speed of flow to the speed of sound in the flowing fluid.

allsm [11]

Answer:

The statement is true

Explanation:

4 0

2 years ago

Thomas Edison modification of the filament of the light bulb is an example of the "identify the problem" step of the engineering

777dan777 [17]

True , i’m pretty sure

3 0

3 years ago

If the total energy change of an system during a process is 15.5 kJ, its change in kinetic energy is -3.5 kJ, and its potential

drek231 [11]

Answer:

The change in specific internal energy is 3.5 kj.

Explanation:

Step1

Given:

Total change in energy is 15.5 kj.

Change in kinetic energy is –3.5 kj.

Change in potential energy is 0 kj.

Mass is 5.4 kg.

Step2

Calculation:

Change in internal energy is calculated as follows:

$\bigtriangleup E=\bigtriangleup KE+\bigtriangleup PE+\bigtriangleup U$ $15.5=-3.5+0+\bigtriangleup U$

$\bigtriangleup U=19$ kj.

Step3

Specific internal energy is calculated as follows:

$\bigtriangleup u=\frac{\bigtriangleup U}{m}$

$\bigtriangleup u=\frac{19}{5.4}$

$\bigtriangleup u=3.5$ kj/kg.

Thus, the change in specific internal energy is 3.5 kj/kg.

7 0

4 years ago