Answer:
This is an example of: <u>a sample survey.</u>
Explanation:
In the experiment to determine the effect of sleep deprivation on the ability of the student to concentrate definitely needs an experimental setup rather than a randomized data collection.
<em>Do to the fact that, the experimental used a small sample sized area (Students in a calculus class) to test his hypothesis shows that the setup is a sample survey. </em>
<u>This sample survey result could be extrapolated to the whoe region (the classes in the school or whole school ) to determine if there was a major significance between the two variables.</u>
Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
The correct sentence of the four is this one:
<span>Neither the train nor the bus runs that late.
and in this sentence the verb agrees with the compound subject, in the rest it does not (but it would not be a big mistake if the verb was in plural form here- there are arguments for a plural form here too).</span>
Answer:
When you create an original work and put a Creative Commons attribution license on it, you are still the copyright holder - <em>TRUE</em>.
In order to be a copyright holder you must register with the U.S. Copyright Office - <em>FALSE</em>.
Explanation:
<u>TRUE
</u>
<u>When you create an original work, you are automatically protected by the copyright law.</u> Creative Commons is a license that you attribute to your work and thus, you still hold all the copyright rights. There are many types of Creative Commons licenses, for example, where you can give users rights to do anything they want with your ‘work’, but you will still be the copyright holder.
<u>FALSE
</u>
<u>You are the copyright owner of your created original work, from the moment you create it. Registering it with the U.S Copyright Office is not needed to have copyright protection.</u> However if you want to file an infringement lawsuit to protect your work, that you created within U.S borders, then you need to register it with the U.S Copyright Office.
