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 answer is short-term memory.
Short-term memory (STM) refers to our ability and capacity for retaining a small amount of information for a short period of time. Remembering an unfamiliar phone number entails the use of our STM. However, a phone number is difficult to retain in our STM because STM has a digit span of approximately seven units. This means that our STM can hold around seven digits of a phone number and not all (10+) of them.
Because of the fear of the communism in United States
Answer:
Bradley method
Explanation:
When giving birth there are many options and techniques available for women who want to have the option of having a natural birth.
One of this options is the Bradley method, this method is also called the "husband-coached childbirth" because it emphasizes the importance of the partner's support during childbirth. Other characteristics of this method are that it encourages women to trust their body needs and therefore focuses a lot on their diet and exercise during pregnancy, it also teaches techniques of breathing and relaxation that will be used during childbirth and it coaches the partner to be a supportive presence during birth.
Therefore, we can say that the Bradley method is the technique designed for women interested in having a completely natural, non-medicated birth that stresses good diet and exercise, partner coaching, and deep relaxation.
Answer: The fundamental aim of a formal analysis is to explain how the formal elements of a work of art affect the representation of the subject matter and expressive content. The emphasis should be on analyzing the formal elements not interpreting the artwork.
Explanation:
