Engineering

One side of a 2-m-high and 3-m-wide vertical plate at 80°C is to be cooled by attaching aluminum fins (k= 237 W/m-K)

Question: One side of a 2-m-high and 3-m-wide vertical plate at 80°C is to be cooled by attaching aluminum fins (k= 237 W/m-K) of a rectangular profile in an environment at 35°C. The fins are 2 cm long, 0.3 cm thick, and 0.4 cm apart. The heat transfer coefficient between the fins and the surrounding …

One side of a 2-m-high and 3-m-wide vertical plate at 80°C is to be cooled by attaching aluminum fins (k= 237 W/m-K) Read More »

What is the output produced by the following code? int *p1, *p2; p1 new int; p2 new int p1 10

Question: Answer: int *p1, *p2; //declare 2 integer pointer p1 = new int; //allocating a storage for an integer and assigning address of that storage to p1 p2 = new int; //allocating a storage for an integer and assigning address of that storage to p2 *p1 = 10; //storing 10 to the address p1 *p2 …

What is the output produced by the following code? int *p1, *p2; p1 new int; p2 new int p1 10 Read More »

The DBA denormalized some of the data in the TAL Distributors database to improve performance, and one of the resulting tables is the following:

Question: The DBA denormalized some of the data in the TAL Distributors database to improve performance, and one of the resulting tables is the following: Customer (CustomerNum, CustomerName, Street, City, State, PostalCode, Balance, CreditLimit, RepNum, RepName) Which field or fields cause the table to no longer be in third normal form? In which normal form …

The DBA denormalized some of the data in the TAL Distributors database to improve performance, and one of the resulting tables is the following: Read More »

The following data were collected from a 0.4-in.-diameter test specimen of polyvinyl chloride (l0 = 2.0 in.):

Question: The following data were collected from a 0.4-in.-diameter test specimen of polyvinyl chloride (l0 = 2.0 in.): Load (lb) Δl (in.) 0 0.00000 300 0.00746 600 0.01496 900 0.02374 1200 0.032 1500 0.046 1660 0.070 (maximum load) 1600 0.094 1420 0.12 (fracture) After fracture, the total length was 2.09 in. and the diameter was 0.393 in. …

The following data were collected from a 0.4-in.-diameter test specimen of polyvinyl chloride (l0 = 2.0 in.): Read More »