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kap26 [50]
3 years ago
14

Which of the following least represents an negative impact on Earth caused mostly by humans?

Physics
2 answers:
Virty [35]3 years ago
4 0
Deforestation. i hope it helps!
SIZIF [17.4K]3 years ago
3 0

Answer:

D

Explanation:

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In an experiment, a shearwater (a seabird) was taken from its nest, flown a distance 5220 km away, and released. It found its wa
Korolek [52]

Answer:

4.6834625323 m/s

0 m/s

Explanation:

s = Displacement

t = Time

Velocity is given by

v=\dfrac{s}{t}\\\Rightarrow v=\dfrac{5220000}{12.9\times 24\times 60\times 60}\\\Rightarrow v=4.6834625323\ m/s

The bird's average velocity for the return flight is 4.6834625323 m/s

In the whole episode the bird went 5220 km away from its nest and came back. This means the displacement is zero.

Hence, the average velocity for the whole episode is 0 m/s

7 0
3 years ago
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A man is pushing a heavy crate up an inclined plane (ramp) into the back of semi trailer. What can the man do to make it easier
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Grace [21]

Answer:

4.3 * 10 N

Explanation:

To calculate torque, we multiply the distance from the pivot by the perpendicular (the part of the force that acts at right angles to the displacement vector) component of the force to the displacement vector from the pivot.

torque  = distance from pivot *  perpendicular force

170 Nm= 0.4 m * F

F = 425 N = 4.3 * 10 N rounded off to two significant figures

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If you break quartz to learn if it splits smoothly in a certain direction, what physical property are you testing?
IrinaVladis [17]
Hope this helps!!!!!!!!!!

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What kind of force can be created with an electrical current?
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magnatic force can be created

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