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3 years ago

Definition of waves

2 answers:

7 0

A wave is a transfer of energy, usually in a form of matter called a medium. ... There are also waves that don't travel through any medium at all, called electromagnetic waves.

garik1379 [7]3 years ago

5 0

Answer: Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.

Explanation: pls mark branliest

****Isra****

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In 2015, there were approximately 4 comma 159 comma 000 births in a country. Find the birth rate in births per minute. Assuming

miv72 [106K]

Answer:

Birth rate per minute is 7.913

Birth rate per thousand is 11.457

Solution:

As per the given data in the question:

No. of births in the year 2015, n = 4,159,000

Total population size, N = 3,630,00,000 = 363000 thousand

Now,

To calculate the birth rate in births per min:

No. of days in the year 2015 = 365 days

No. hours in a day = 24 hrs

1 hour = 60 mins

Thus

Total minutes in the year 2015, t = $365\times 24\times 60 = 525,600\ min$

Birth rate = $\frac{n}{t} = \frac{4159000}{525600} = 7.913$

Now,

To calculate the birth rate per thousand people:

= $\frac{n}{N} = \frac{4159000}{363000} = 11.457$

7 0

3 years ago

When mothers enjoy their work and remain committed to parenting, children have higher self-esteem, more positive family and peer

Ganezh [65]

Answer:

False

Explination:

this statement would be true providing that both parents were at home caring for their children for equal amounts of time because that would limit gender-stereotyped beliefs as both parents (not just the mother) commits to parenting.

8 0

3 years ago

What is an unrealized promise of NAFTA?

Assoli18 [71]

The primary purpose of NAFTA or the North American Free Trade Agreement was to establish a free trade agreement between Canada, the United States, and Mexico. This free trade agreement sought to increase economic relations between the countries by easing the flow of goods between them by lowering the barriers to trade.

Not sure if this helps..

4 0

3 years ago

Read 2 more answers

Which caste was the largest? which was the smallest.

Bezzdna [24]

The Shudras (the lowest caste in the system, but still above the Untouchables who exist outside the entire system) was the largest caste. The smallest was the Brahmins (the top class of priests)

6 0

3 years ago

How can the World Bank help developing nations economically?

alekssr [168]

The correct answer is letter B

Explanation: The World Bank is a financial institution that lends to governments as well as large corporations.

<u>World Bank</u> is a huge financial institution that lends to governments for infrastructure works, transportation, hydroelectric plants, sanitation, among others, as well as contributions to programs for economic, industrial and agricultural development, social and environmental measures.

3 0

3 years ago

Definition of waves​

Definition of waves