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4 years ago

What is four possible energy sources for a circuit

Physics

2 answers:

VashaNatasha [74]4 years ago

8 0

<span>electric, solar, wind, and geothermal.</span>

Dima020 [189]4 years ago

4 0

the four sources needed for a circuit are 1 wind

2voltage

3constant currents

4energy

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An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m1=528 kg, m2=838 kg and m3=311 kg have blocked

JulsSmile [24]

Answer:

$FA=419,25N$

$F12=287,25N$

Explanation:

The bulldozer is moving the rocks as one system, the weigth for the complete system is:

$M=m1+m2+m3=1677kg$

From newton´s second law the acceleration can be related to the force by:

$FA=m*a=1677kg*0,250m/s^{2}=419,25N$

on the middle rock we have the force F12 from the first to the middle rock on the direction of movement and F32 from the las rock to the middle rock on the opposite direction of movement.

For the last rock to accelerate at the same rate it must be subjected to a force:

$F23=m3*a=311kg*0,250m/s^{2} =77,75N$

This equals the force F32 on the opposite direction. the resultant force on the middle rock to mantain this acceleration should be:

$F2=m2*a=838kg*0,250m/s^{2} =209,5N$

The sum of all the forces applied to the middle rock is:

$F2=F12-F32$

Solving for F12:

$F12=F2+F32=209,5N+77,75N=287,25N$

3 0

3 years ago

What are 2 active volcanic hotspots with a brief description in your own word NOT GOOGLE'S.

tankabanditka [31]

Explanation:

In geology, the places known as hotspots or hot spots are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. Examples include the Hawaii, Iceland and Yellowstone hotspots.

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3 years ago

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Verdich [7]

I believe that the answer is C. Hope this Helps:)))

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3 years ago

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kolbaska11 [484]

Es el número (2) esa es la respuesta correcta

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