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iVinArrow [24]
3 years ago
5

Special considerations must be given to systems using liquid hydrogen for fuel because of: A. Liquid hydrogen's low density B. L

iquid hydrogen's low storage temperature C. The high flammability of hydrogen vapors D. All of the above
Engineering
1 answer:
vitfil [10]3 years ago
6 0

Answer:

D.All of the above

Explanation:

Properties of hydrogen:

1.It is lighter than air.It has density about 0.089 g/L.

2.Hydrogen  rapidly change from liquid state to gas,so special protection is required to protect it.

3.It is highly flammable gas.

4.Liquid form of hydrogen exits at -432 F .This is very low temperature so special protection requires to keep it in liquid form.          

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How much memory can a 32 -bit processor support ?
JulijaS [17]

It supporst only 4 Gigabytes of memory in the system

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3 years ago
A socket can be driven using any of the following except for (A) a socket ratchet
AfilCa [17]

Answer:

a socket can be driven by a flexible head socket wrench, I believe

4 0
3 years ago
Colonial Adventure Tours calculates the total price of a trip by adding the trip price plus other fees and multiplying the resul
Vilka [71]

Answer:

The following query is used to display TripName. Reservationld, FirstName. LastName and TotalCost of trip by adding the trip price plus other fees and multiplying the result by the number of persons which have number of persons >4.

Query:

SELECT ReservationlD, Trip.TripName. Customer.LastName. Customer.FirstName. (TripPrice+OtherFees) 'NumPersons as TotalCost FROM Reservation, Trip, Customer WHERE NumPersons>4 AND Reservation.TriplD=Trip.TriplD AND

Customer. CustomerNum=Reservation.CustomerNum:

Explanation:

  • Select clause is used to retrieve data from specified database table or relation and returns the data in the form of table.
  • ReservationID. Trip.TripName. Customer.LastName. Customer.FirstName are the column name of table.
  • (TripPrice+OtherFees) 'NumPersons will calculate the total cost of the Trip and stored it into TotalCost column.
  • As clause is used to give new name TotalCost to resultant column.
  • FROM clause specifies one or more table from where records to be retrieved. o Reservation. Trip and Customer are the table name.
  • WHERE clause is used in SQL query to retrieve only those records that satisfy the specified condition

3 0
3 years ago
When it comes to making a good impression in a work setting, it does not apply to an initial contact, since both people are meet
Art [367]

Answer:

you have only seconds in which a person will accept or reject an employee or firm

Explanation:

First impression matters that's why when looking for employment with an organisation, lack of a tie for men may lead to automatic rejection. You have to be smart both intellectually and physically. Therefore, it means that you have only seconds in which a person will accept or reject an employee or firm.

4 0
3 years ago
You have just finished your OST takeoffs for a single-story home and found 175 LF of interior walls with 2x6 studs 14" OC. The h
zimovet [89]

Answer:

Total BF for the interior wall is 7.50BD

Explanation:

Given Data:

· Size of stud = 2” x 6”

· Height of Wall = 8 ft

· Top plates = 2

· Bottom Plate = 1

BF stands for board feet in lumber/wood terminology. It is the unit of volume.

1 BF (Board feet) = 1 ft x 1 ft x 1 inch

Since there are total three plates at top and bottom, we have to deduct their thickness from wall height to calculate height of stud.

Height of stud = 8’ – 3 x 2” = 7’6” = 7.5 ft

Board feet of one stud = 7.50 6/12 x 2 = 7.50 BD

Total BF for the interior wall is 7.50BD

7 0
3 years ago
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