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3 years ago

8

Which of the code pieces below should replace the underline?public class Test{public static void main(String[] args){Test test =

new Test();test.setAction(_______);}public void setAction(T1 t){t.m();}}interface T1{public void m();}

1 answer:

nikdorinn [45]3 years ago

5 0

Which of the code pieces below should replace the underline?public class Test{public static void main(String[] args){Test test = new Test();test.setAction(_______);}public void setAction(T1 t){t.m();}}interface T1{public void m() is explained below

Explanation:

Update of /cvsroot/pydev/org.python.pydev/src/org/python/pydev/editor/correctionassist

In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv24839/src/org/python/pydev/editor/correctionassist

Modified Files:

PythonCorrectionProcessor.java

Log Message:

Index: PythonCorrectionProcessor.java

===================================================================

RCS file: /cvsroot/pydev/org.python.pydev/src/org/python/pydev/editor/correctionassist/PythonCorrectionProcessor.java,v

retrieving revision 1.12

retrieving revision 1.13

diff -C2 -d -r1.12 -r1.13

*** PythonCorrectionProcessor.java 23 Feb 2005 14:29:36 -0000 1.12

--- PythonCorrectionProcessor.java 25 Feb 2005 12:34:28 -0000 1.13

***************

*** 419,423 ****

//all that just to change first char to lower case.

callName = lowerChar(callName, 0);

! if (callName.startsWith("get")){

callName = callName.substring(3);

callName = lowerChar(callName, 0);

--- 419,423 ----

//all that just to change first char to lower case.

callName = lowerChar(callName, 0);

! if (callName.startsWith("get") && callName.length() > 3){

callName = callName.substring(3);

callName = lowerChar(callName, 0);

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3 years ago

The basic barometer can be used to measure the height of a building. If the barometric readings at the top and the bottom of a b

Levart [38]

Answer:

230.51 m

Explanation:

Pb = 695 mmHg

Pt = 675 mmHg

Pb - Pt = 20 mmHg

Calculate dP:

dP = p * g * H = (13600)*(9.81)*(20/1000) = 2668.320 Pa

Calculate Height of building as dP is same for any medium of liquid

dP = p*g*H = 2668.320

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3 years ago

Define the word vision statement

Elena L [17]

Answer:

A vision statement describes what a company desires to achieve in the long-run, generally in a time frame of five to ten years, or sometimes even longer. It depicts a vision of what the company will look like in the future and sets a defined direction for the planning and execution of corporate-level strategies.

Explanation:

While companies should not be too ambitious in defining their long-term goals, it is critical to set a bigger and further target in a vision statement that communicates a company’s aspirations and motivates the audience. Below are the main elements of an effective vision statement:

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3 years ago

State the number of terms for each of the following algebraic expression 2x+1

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Answer:

Expressions are made up of terms.

A term is a product of factors.

Coefficient is the numerical factor in the term

Before moving to terms like monomials, binomials, and polynomials, like and unlike terms are discussed.

When terms have the same algebraic factors, they are like terms.

When terms have different algebraic factors, they are unlike terms.

Explanation:

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3 years ago

Air at 400kPa, 970 K enters a turbine operating at steady state and exits at 100 kPa, 670 K. Heat transfer from the turbine occu

Sonja [21]

Answer:

a

The rate of work developed is $\frac{\r W}{\r m}= 300kJ/kg$

b

The rate of entropy produced within the turbine is $\frac{\sigma}{\r m}= 0.0861kJ/kg \cdot K$

Explanation:

From the question we are told

The rate at which heat is transferred is $\frac{\r Q}{\r m } = - 30KJ/kg$

the negative sign because the heat is transferred from the turbine

The specific heat capacity of air is $c_p = 1.1KJ/kg \cdot K$

The inlet temperature is $T_1 = 970K$

The outlet temperature is $T_2 = 670K$

The pressure at the inlet of the turbine is $p_1 = 400 kPa$

The pressure at the exist of the turbine is $p_2 = 100kPa$

The temperature at outer surface is $T_s = 315K$

The individual gas constant of air R with a constant value $R = 0.287kJ/kg \cdot K$

The general equation for the turbine operating at steady state is \

$\r Q - \r W + \r m (h_1 - h_2) = 0$

h is the enthalpy of the turbine and it is mathematically represented as

$h = c_p T$

The above equation becomes

$\r Q - \r W + \r m c_p(T_1 - T_2) = 0$

$\frac{\r W}{\r m} = \frac{\r Q}{\r m} + c_p (T_1 -T_2)$

Where $\r Q$ is the heat transfer from the turbine

$\r W$ is the work output from the turbine

$\r m$ is the mass flow rate of air

$\frac{\r W}{\r m}$ is the rate of work developed

Substituting values

$\frac{\r W}{\r m} = (-30)+1.1(970-670)$

$\frac{\r W}{\r m}= 300kJ/kg$

The general balance equation for an entropy rate is represented mathematically as

$\frac{\r Q}{T_s} + \r m (s_1 -s_2) + \sigma = 0$

=> $\frac{\sigma}{\r m} = - \frac{\r Q}{\r m T_s} + (s_1 -s_2)$

generally $(s_1 -s_2) = \Delta s = c_p\ ln[\frac{T_2}{T_1} ] + R \ ln[\frac{v_2}{v_1} ]$

substituting for $(s_1 -s_2)$

$\frac{\sigma}{\r m} = \frac{-\r Q}{\r m} * \frac{1}{T_s} + c_p\ ln[\frac{T_2}{T_1} ] - R \ ln[\frac{p_2}{p_1} ]$

Where $\frac{\sigma}{\r m}$ is the rate of entropy produced within the turbine

substituting values

$\frac{\sigma}{\r m} = - (-30) * \frac{1}{315} + 1.1 * ln\frac{670}{970} - 0.287 * ln [\frac{100kPa}{400kPa} ]$

$\frac{\sigma}{\r m}= 0.0861kJ/kg \cdot K$

5 0

3 years ago