Where is the most deposition most likely to occur?

Which idea is associated with Copernicus? Select one: a. The orbits of the planets are circles. b. The orbits of the planets are

Schach [20]

Answer:

d. The earth rotates around the sun

Explanation:

Nicolas Copernicus is considered the first person to give the theory of heliocentric, or Sun-centered system of our planetary system.

In the heliocentric system, it is considered that the sun is stationary and the earth revolves around the sun.

He stated that the sun is at the center of the universe and the earth spins on its axis once daily and revolves around the sun in one year.

And today we know it is correct that earth rotates on its own axis and also revolves around the sun.

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3 years ago

Scientists use specific processes to evaluate information in order to determine its accuracy and reliability. A scientist is con

solmaris [256]

The answer would be hypothesis testing

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3 years ago

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Will it take longer for a train or a car traveling at 100 mi/hr to stop

Pani-rosa [81]

It typically take longer for a heavier object to slow down therefor, a train will take more time. <span />

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3 years ago

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When we study the earth and its people, we are studying ___________________. a) desalination b) geography c) irrigation d) absol

Fofino [41]

Geography Earth studying

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3 years ago

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Consider three force vectors Fi with magni- tude 53 N and direction 116º, F2 with mag- nitude 57 N and direction 217°, and F3 wi

Flauer [41]

Answer:

a. Fnet =37.67N

b. The direction = 133.4 from the x axis counter clockwise.

c. Option 2

Explanation:

Given that F1 is 53N at 116°, then it will be at a direction of 116-90=26° in the second quadrant.

Given that F2 is 57N at 116°, then it will be at a direction of 217-180=37° in the third quadrant..

Given that F1 is 71N at 20°, then it is in the first quadrant.

a. Fnet= F1+F2+F3

Fnet= -F1sin26i+F2cos26j-F2cos37i-F2sin37j+F3cos20i+F3sin20j

Fnet= 53sin26i+53cos26j-57cos37i-57sin37j+71cos20i+71sin20j

Resolving the vectors into x and y components.

Fnet= -2.04i+37.62j

Magnitude of the vector

Fnet= √((-2.04)^2+(37.62)^2)

Fnet= 37.67N

Fnet is approximately 38N.

b. Direction of the Fnet.

Angle=arctan(y/x)

Angle=arctan(-37.61/2.04)

Angle= -43.37°

The angle is in the negative x axis and positive y axis.

Then the direction becomes 180-43.37

Therefore, the direction of the net force is 133.37°.

c. The instantaneous velocity of a body is always in the direction of the net force at that instant. Option 2 is correct.

Fnet=ma

Fnet= mv/t

So the velocity is in the direction of the Fnet.

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3 years ago