All categories

3 years ago

1. ) For Resonance to occur, the object must experience a frequency equal to its __.

Social Studies

2 answers:

Ostrovityanka [42]3 years ago

8 0

for what sound frequency could a human detect ?

you answers is c 50 hertz

miskamm [114]3 years ago

4 0

1- The correct answer is A. For resonance to occur, the object must experience a frequency equal to its natural frequency.

The resonance is a phenomenon that occurs when a body capable of vibrating is subjected to the action of a periodic force, whose vibration period approaches the characteristic period of vibration of said body.

2- The correct answer is A. When tightening a string on a guitar, its natural frequency increases.

3- The correct answer is D. Resonance in air columns is used in trumpets.

A trumpet exhibits natural resonance frequencies, which follow a harmonic sequence, quite close to the tenth harmonic.

4- The correct answer is D. The term that describes the number of crests that pass a point in a given amount of time is frequency.

Frequency is a quantity that measures the number of repetitions per unit of time of any phenomenon or periodic event.

5- The correct answer is C. A human could detect a sound frequency of 50 hertz, as the human ear has a limited range of perception, which very roughly (since it varies in each individual and with age for only one) ranges from 20 Hz to 20,000 Hz.

You might be interested in

"Howard Schultz traveled to Italy and liked the coffee. He founded Starbucks with a plan to introduce American coffee drinkers t

expeople1 [14]

Answer:

organizational opportunity

Explanation:

Organizational opportunity refers to an opportunity that can benefit our company which generated by external factors.

These 'External Factors' could include wide variety of things, such as New technological invention, Invitation to a project from our connections, or Ideas that we obtain by observing the environment around us.

In Scultz's case, the organizational opportunity came from the idea that generated by experiencing foreign culture. He took some positive aspects of that foreign culture and use it generate profit for the organization.

3 0

3 years ago

Geographic which geographic feature of central Africa is the most important

xenn [34]

Central Africa is one of the Subregional regions where the UN divides the world. It is bordered in the north by North Africa, on the east by East Africa, on the south by Austral Africa and on the west by the Atlantic ocean and West Africa. This Subregion is dominated by the Congo river and its tributaries that, collectively, occupy a greater basin than any other river, except the amazon.

8 0

4 years ago

At the end of china's civil war the united states refused to accept the communist people's republic of china as china's true gov

dusya [7]

Answer: This policy was meant to be a pressure for China to become a democratic country and to make the U.S. be seen as an role model. It was an ideological battle that USA had to grant the propaganda was being made in the right way, so they would show the strenght of their policies in an economical and social way. The biggest disadvantage was not being able to participate on tradings with a country that was changing and growing so fast it was almost becoming the largest market in the world. Economically, the U.S. had to think again on their strategies or they would face a fierce rival.

This strategy was proven to be useless since USA opened up in the 1970's for trading with China again, and this country continues to develop its economy even having a communist government. The socialist market policy didn't lead to democracy as the U.S. thought. Having this in mind, in my opinion there's no point in mantaining this kind of thought that only shows the American dream is to conquer countries by imposing their way of thinking and considering only their point of view as the right thing to do.

7 0

3 years ago

The Works Progress Administration was a major _______ program of the New Deal; the Public Works Administration was a long-range

Tatiana [17]

Answer:

Relief; recovery; and reform.

Explanation:

The Works Progress Administration (WPA) program was a relief program. The program was created by President Franklin Roosevelt for employment and infrastructural purpose during the time of the Great depression in 1935. The plan was build under the New Deal, with the purpose to bring relief to the country and also to bring the country out of the problems and effects of the Great Depression.

The Public Works Administration was a recovery program created by the National Industrial Recovery Act of 1933. The purpose of the program was to recover the nation's major infrastructures such as airports, schools, hospitals, electricity-generating dams, etc.

The Social Security Act was created by President Franklin Roosevelt in 1935. The purpose of this act was to reform the old-age benefits of aged persons, disabled persons, unemployed workers. The act provides security to these people by giving them benefits on a federal level which was earlier only at the state level.

5 0

3 years ago

An article about the relationship between Man and Environment!

lana66690 [7]

Answer:

Man and environment are inter-related. The environment influences the life of human beings and also human beings modify their environment as a result of their growth, dispersal, activities, death, and decay, etc. Thus all living beings including man and their environment are mutually reactive affecting each other in a number of ways and a dynamic equilibrium is possible in between the two, i.e. human beings (society) and environment are interdependent.

Explanation:

8 0

3 years ago