Question
What is the minimum escape velocity of rocket to be
launched into space?Solution
On the surface of the Earth, the escape velocity is about 11.2 kilometers per second 06.96 mi/s), which is approximately 34 times the speedof sound(Mach34) andseveral timesthemuzzlevelocity ofarifle bullet (up to 1.7 km/s). However, at 9,000 km altitude in "space", it is slightly less than 7.1 km/s. In physics,escapevelocityisthespeedatwhichthe kinetic energy plus the gravitational potential energy of an object is zero.
A star schema in a data warehouse consists of:
Which process ensures data in a data warehouse is consistent and clean?
Which analytics type is focused on predicting future outcomes?
Which SQL clause is used to summarize data?
Which type of OLAP allows analysis of multidimensional data stored in relational databases?
Which of the following is a real-time data warehouse application?
Which of the following best defines the concept of the "Internet of Things" (IoT)?
Which of the following commands is part of the Transaction Control Language (TCL) in SQL?
A Fact Constellation Schema is also called:
Which of the following best describes the primary function of a database index?
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