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
astraxan [27]
3 years ago
15

(HVAC) PLEASE HELP neeed helpp

Engineering
1 answer:
meriva3 years ago
3 0
Answer

Sump heater

Explanation
You might be interested in
If you are convicted of D.U.I. a second time in five years, your license may be revoked for up to __________ year/s.
LuckyWell [14K]
If you are convicted of a dui for a second time in five years, your license may be revoked for up to (2) years
5 0
3 years ago
Compute the volume percent of graphite, VGr, in a 2.5 wt% C cast iron, assuming that all the carbon exists as the graphite phase
ludmilkaskok [199]

Answer:

The volume percent of graphite is 91.906 per cent.

Explanation:

The volume percent of graphite (\% V_{Gr}) is determined by the following expression:

\%V_{Gr} = \frac{V_{Gr}}{V_{Gr}+V_{Fe}} \times 100\,\%

\%V_{Gr} = \frac{1}{1+\frac{V_{Gr}}{V_{Fe}} }\times 100\,\%

Where:

V_{Gr} - Volume occupied by the graphite phase, measured in cubic centimeters.

V_{Fe} - Volume occupied by the ferrite phase, measured in cubic centimeters.

The volume of each phase can be calculated in terms of its density and mass. That is:

V_{Gr} = \frac{m_{Gr}}{\rho_{Gr}}

V_{Fe} = \frac{m_{Fe}}{\rho_{Fe}}

Where:

m_{Gr}, m_{Fe} - Masses of the graphite and ferrite phases, measured in grams.

\rho_{Gr}, \rho_{Fe} - Densities of the graphite and ferrite phases, measured in grams per cubic centimeter.

Let substitute each volume in the definition of the volume percent of graphite:

\%V_{Gr} = \frac{1}{1 +\frac{\frac{m_{Gr}}{\rho_{Gr}} }{\frac{m_{Fe}}{\rho_{Fe}} } } \times 100\,\%

\%V_{Gr} = \frac{1}{1+\left(\frac{m_{Gr}}{m_{Fe}} \right)\cdot \left(\frac{\rho_{Fe}}{\rho_{Gr}} \right)}\times 100\,\%

Let suppose that 100 grams of cast iron are available, masses of each phase are now determined:

m_{Gr} = \frac{2.5}{100}\times (100\,g)

m_{Gr} = 2.5\,g

m_{Fe} = 100\,g - 2.5\,g

m_{Fe} = 97.5\,g

If m_{Gr} = 2.5\,g, m_{Fe} = 97.5\,g, \rho_{Fe} = 7.9\,\frac{g}{cm^{3}} and \rho_{Gr} = 2.3\,\frac{g}{cm^{3}}, the volume percent of graphite is:

\%V_{Gr} = \frac{1}{1+\left(\frac{2.5\,gr}{97.5\,gr} \right)\cdot \left(\frac{7.9\,\frac{g}{cm^{3}} }{2.3\,\frac{g}{cm^{3}} } \right)} \times 100\,\%

\% V_{Gr} = 91.906\,\%

The volume percent of graphite is 91.906 per cent.

6 0
2 years ago
Technician A says if the input signal turn-on time is too fast for the input circuit, your program may operate as though the inp
ASHA 777 [7]

Answer:

b. Technician B only

Explanation:

A watchdog timer is a circuit that automatically monitors the MCU (Microcontroller Unit) for any anomaly, detects it and helps the MCU to recover from the malfunction it has detected.

If the input signal turn-on time is too fast for the input circuit, that is a malfunction and this activates the watchdog timer circuit to correct this malfunction immediately. So Technician B only is correct as the watchdog timer is activated immediately once there is a malfunction.

7 0
3 years ago
Serves as a protective barrier to prevent contact with engergized ("hot") parts<br> within the unit
erik [133]

Answer:

thanks hot hot

Explanation:

4 0
3 years ago
A fair die is thrown, What is the probability gained if you are told that 4 will
Semmy [17]

Answer:

1/6

Explanation:

A dice has 6 sides, the probability of 4 appearing is 1/6.

7 0
2 years ago
Other questions:
  • The moisture in hot, humid, stagnant air surrounding a cold-water pipeline continually diffuses to the cold surface where it con
    14·1 answer
  • Students are expected to respond to one of the two questions described below. Students should provide examples to clarify their
    12·1 answer
  • A driver is traveling at 52 mi/h on a wet road. an object is spotted on the road 415 ft ahead and the driver is able to come to
    5·2 answers
  • Which of the following is a advantage of a chain and sprocket over a pulley and belt system?
    7·1 answer
  • WHAT IS THE MOST POWERFUL PART IN A CAR
    13·2 answers
  • What's resistance in an electrical circuit? 1) Opposition to the flow of electricity 2) The ability of electricity to do work 3)
    11·1 answer
  • A lighthouse built at sea level is 170ft high from its top , the angle of depression of a buoy is 29 degrees . Find the distance
    10·1 answer
  • What is government role in the modern American version of capitalism
    11·1 answer
  • HELP _7. All of the following except which would lead to an INCREASE in friction?
    15·1 answer
  • Think about a good game story that made you feel a mix of positive and negative emotions. What was the story, what emotions did
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!