1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kaheart [24]
3 years ago
10

A certain type of D-cell battery that costs $0.50 is capable of producing 1.2 V and current of 0.1 A for a period of 75 hours. D

etermine the cost of the energy delivered by this battery per kilowatt hour.
Engineering
1 answer:
stealth61 [152]3 years ago
3 0

Answer:

$55.55/ kWh

Explanation:

Data provided in the question:

Cost of the D-cell battery = $0.50

Voltage produced by the battery, V = 1.2 V

Current produced = 0.1 A

Time = 75 hours

Now,

Energy produced by the battery = Voltage × Current × Time

= 1.2 × 0.1 × 75

= 9 Wh

= 9 × 10⁻³ kWh = 0.009 kWh

Therefore,

Cost of the energy delivered = Cost of the D-cell battery ÷ Energy produced

= $0.50 ÷ 0.009 kWh

= $55.55/ kWh

You might be interested in
The Torricelli's theorem states that the (velocity—pressure-density) of liquid flowing out of an orifice is proportional to the
Sergeeva-Olga [200]

Answer:

The correct answer is 'velocity'of liquid flowing out of an orifice is proportional to the square root of the 'height'  of liquid above the center of the orifice.

Explanation:

Torricelli's theorem states that

v_{exit}=\sqrt{2gh}

where

v_{exit} is the velocity with which the fluid leaves orifice

h is the head under which the flow occurs.

Thus we can compare the given options to arrive at the correct answer

Velocity is proportional to square root of head under which the flow occurs.

4 0
3 years ago
What is the value of the work interaction in this process?
Cloud [144]

Answer:

The answer is "-121\  \frac{KJ}{Kg}".

Explanation:

Please find the correct question in the attachment file.

using formula:

\to W=-P_1V_1+P_2V_2 \\\\When \\\\\to W= \frac{P_1V_1-P_2V_2}{n-1}\ \   or \ \  \frac{RT_1 -RT_2}{n-1}\\\\

W =\frac{R(T_1 -T_2)}{n-1}\\\\

    =\frac{0.287(25 -237)}{1.5-1}\\\\=\frac{0.287(-212)}{0.5}\\\\=\frac{-60.844}{0.5}\\\\=-121.688 \frac{KJ}{Kg}\\\\=-121 \frac{KJ}{Kg}\\\\

7 0
3 years ago
Why might construction crews want to install pipes before the foundation is poured
Crazy boy [7]

The answer is choice C

Explanation:

As during construction ,the site is cleared for all debris before laying out the foundation. Even the sewer lines are dug out .

So it will be useful for the construction crews to  connect the pipes to the sewer lines before the foundation is poured.

But usually the steps take in construction activity is:- first the site is cleared for the foundation to be poured  and once the foundation wall is set , then all utilities , including plumbing and electrical activities are done.,

After this process is over, the city inspector comes to check whether the foundation has been laid down as per the code of construction.

Only after that the rest of the construction activity follows through.

3 0
3 years ago
A compound sliding miter saw can be used to make
Sunny_sXe [5.5K]

Answer:

D

Explanation:

3 0
2 years ago
............ ..........<br>​
sukhopar [10]

Answer:

...................

Explanation:

6 0
2 years ago
Other questions:
  • What Type of diploma do you need in order To the get into JMU
    12·1 answer
  • There have been many attempts to manufacture and market plastic bicycles. All have been too flexible and soft. Which design-limi
    9·1 answer
  • An extruder barrel has a diameter of 4.22 inches and a length of 75 inches. The screw rotates at 65 revolutions per minute. The
    14·1 answer
  • The products of combustion from a burner are routed to an industrial application through a thin-walled metallic duct of diameter
    11·1 answer
  • The point in an electrical circuit that is connected to the negative side of a power supply is called what?
    8·1 answer
  • Which of these parts of a cell phone is least likely to be found on the phone's circult board?
    5·1 answer
  • Describe in your own words the three strengthening mechanisms
    7·1 answer
  • list out main types of material used in design and Manufacture of product give one example for each in engineering application ?
    10·1 answer
  • What was a campaign belief in the 1980 presidential election? Carter called for a stronger national defense. Carter promised to
    7·2 answers
  • The sum of forces on node 2 (upper-left) is ______.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!