All categories

3 years ago

Greenwich, England, lies on 0 degrees longitude. True False

Geography

2 answers:

natka813 [3]3 years ago

6 0

True that!!!!!!!!!!!!!!!!

Anit [1.1K]3 years ago

4 0

True i think. that my guessed

You might be interested in

What is the national bird of India

Digiron [165]

Answer:

The peacock is the national bird of India.

6 0

3 years ago

Read 2 more answers

The impact of drought in South Africa

Murrr4er [49]

interesting, the moon, the earth, the other things in reality is only a pratice for the real thing....

4 0

2 years ago

In nuclear fission and fusion reactions mass is converted into energy. The average person in US uses around 100,000,000 J of ene

daser333 [38]

Answer:

a) The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) The energy that would be released if a 60 kg person were converted entirely into energy is $5.4\times 10^{18}$ Joules.

c) 180 years would this amount of energy support a population of 300 million.

Explanation:

a) Average energy consumed by single person of US = 100,000,000 J/year

Then 300 million US citizen will consume:

300 million = 300 × 1,000,000 = $3\times 10^8$

The yearly energy consumption for a US population :

$100,000,000 J/year\times 3\times 10^8=3\times 10^{16} J/year$

The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) $E = m\times c^2$

E = Energy from converted mass of m

c = speed of light

Given mass of person = m = 60 kg

$E=60 kg\times (3\times 10^8 m/s)^2 = 5.4\times 10^{18} J$

c) Energy calculated in part (b) = $E=5.4\times 10^{18} J$

The yearly energy consumption for a US population of 300 million in an year = $3\times 10^{16} J/year$

Let the that would be supported by $5.4\times 10^{18}$ Joules of energy be x.

$x\times 3\times 10^{16} J/year=5.4\times 10^{18} J$

$x=\frac{5.4\times 10^{18} J}{3\times 10^{16} J/year}=180 years$

180 years would this amount of energy support a population of 300 million.

4 0

3 years ago

The point in the sky directly above your head at any given time is called the

yawa3891 [41]

The point in the sky directly above your head at any given time is called the. zenith. The celestial sphere turns once around each day because. the celestial sphere does not move, is the earth that turns around once each day. The south celestial pole and the north celestial pole lie in the sky directly above the.

8 0

3 years ago

What is the main advantage of using hydrogen, solar, and wind to generate power?

Mariulka [41]

Answer:

hydroelectric, solar, and wind are all renewable energy sources that are good for the earth so pick choice B

Explanation:

6 0

2 years ago

Read 2 more answers