Fist one correct.
second wrong because not all heat is used for work, some of it lost to other.
third wrong because fuel burn inside is called combustion engine
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the checked bounced because he didn’t have any money.
mark me brainliest please!!!!!
A composite primary key applies to more than one field. <span>A table can have only one primary key, which may consist of single or multiple fields.</span>
A composite primary key is selected from Design view. <span>In Design </span>view<span>, you can use the </span>Primary Key<span> button to assign or remove the </span>primary key<span> designation for the </span>selected<span> field or fields.</span>
I guess the best option is letter D.
In 1972, Gordon Bell formulated Bell's Law, which states a new computer class forms roughly each decade establishing a new industry.
The purpose of bit stuffing is used as a delimiter to mark the end of one frame and the beginning of the next frame.
<h3>What is Bit Stuffing?</h3>
This refers to the use of one or more information bits in order to break up the message for easy synchronization.
The parts of a frame are:
- Frame header
- Payload field
- Trailer
- Flags.
<h3>What is a Flag?</h3>
This is a bit pattern that is used to define the start and end bits in a given frame and the 8-bit pattern 01111110 as the flag is commonly used.
Hence, we can see that your question is incomplete so I gave you a general overview to help you have a better understanding of the concept.
Read more about bit stuffing here:
brainly.com/question/12949292
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