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3 years ago

The coordinates 40 degrees north and 100 degrees east falls in what country?

2 answers:

7 0

We can find for the country by using a map with angle coordinates. Based on the map that I found online, the country which is located at around 40 degrees north and 100 degrees east is no other than:

<span>China</span>

Ipatiy [6.2K]3 years ago

5 0

Answer:

China

Explanation:

Using the map one can find out this. The location lies in the northern China. It lies in the northern Chinese province Inner Mongolia.

The coordinate 40 degrees north refers to the latitude of the place and 100 degrees east refers to the longitude of the place. latitude-longitude are the coordinates of the grid system on Earth which helps in navigation.

You might be interested in

Whats 80.000g = what kg

Rama09 [41]

there is 1000 grams in 1 kilogram

Divide

80/1000 = 0.08

0.08 kilograms is your answer

hope this helps

3 0

3 years ago

How many nanoseconds are there in 1.90 yr ?<br> Express your answer using three significant figures.

shepuryov [24]

   (1.9 yr) x (365.24 day/yr) x (86,400 sec/day) x (10⁹ nsec/sec)

   = (1.9 x 365.24 x 86,400 x 10⁹) nanosec

   = 6.00 x 10¹⁶ nanoseconds

5 0

3 years ago

1. Give three examples, from the lab, where potential energy was converted to kinetic energy:

Lubov Fominskaja [6]

Answer:

A book on a table before it falls.

A yoyo before it is released.

A raised weight.

Explanation:

These are all examples of potential energy. So I hope you can find something that is comparable from the lab.

3 0

3 years ago

A string, stretched between two fixed posts, forms standing-wave resonances at 325 Hz and 390 Hz. What is the largest possible v

Pavel [41]

Answer:

Explanation:

The resonant frequencies for a fixed string is given by the formula nv/(2L).

Where n is the multiple .

v is speed in m/s .

The difference between any two resonant frequencies is given by v/(2L)= fn+1 – fn

fundamental frequency means n=1

i.e fn+1 – fn = 390 -325

= 65

3 0

3 years ago

This question relates to the practicality of searching for intelligent life in other solar systems by detecting their radio broa

Montano1993 [528]

Answer:

$2.77287\times 10^{15}\ m$

Explanation:

P = Power = 50 kW

n = Number of photons per second

h = Planck's constant = $6.626\times 10^{-34}\ m^2kg/s$

$\nu$ = Frequency = 781 kHz

r = Distance at which the photon intensity is i = 1 photon/m²

Power is given by

$P=nh\nu\\\Rightarrow n=\dfrac{P}{h\nu}\\\Rightarrow n=\dfrac{50000}{6.626\times 10^{-34}\times 781000}\\\Rightarrow n=9.66201\times 10^{31}\ photons/s$

Photon intensity is given by

$i=\dfrac{n}{4\pi r^2}\\\Rightarrow 1=\dfrac{9.66201\times 10^{31}}{4\pi r^2}\\\Rightarrow r=\sqrt{\dfrac{9.66201\times 10^{31}}{4\pi}}\\\Rightarrow r=2.77287\times 10^{15}\ m$

The distance is $2.77287\times 10^{15}\ m$

3 0

3 years ago