The answer is a Scanning Electron Microscope
It is important to obtain and prepare proper samples when using SEM. The sample’s size, state, and shape are things that should be considered before the sample preparation. Some samples need to be coated. Most metals require no preparation since they can easily conduct electricity. Non-metals, however, needs to be coated with a thin layer of gold. Gold is the ideal non-metal and works most of the times.
Answer:
View Base tables: Virtual table based on a SELECT query
CREATE VIEW statement: Data definition command that stores the query specification in the data dictionary
DROP VIEW statement: Data definition command that removes the query specification in the data dictionary
Explanation:
Views are virtual tables, which can be created by select queries using the real database tables.
Creating and dropping views can be done by the CREATE VIEW and DROP VIEW statements.
<u>CREATE VIEW syntax:</u>
CREATE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;
<u>DROP VIEW syntax:</u>
DROP VIEW view_name;
Answer:
American engineer Elijah McCoy was born in Canada but became US citizen very young, and and made vital contributions in the United States after the Civil War such as in the progress of locomotives design and railroads in America, the automatic lubrication systems for steem engines and many other inventions among his 57 U.S. patents that made train travel more efficient.
Explanation:
Answer:
I believe the answer is ''You have to remove all code from the interpreter before closing it'.
Explanation:
Answer:
an application that had multiple uses is called full featured