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xeze [42]
3 years ago
8

List 3 lessons we learned from history to handle pandemic

Physics
1 answer:
mote1985 [20]3 years ago
4 0

Answer:

1- impact

2. Inequalities

4. Controllability

Explanation:

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why should society be concerned about continental drift and plate tectonics? What value does this research have for the public i
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Humans should be concerned with continental drift and plate tectonics because these forces have a major impact on the environment and also lead to major natural disasters. Shifts in tectonic plates lead to earthquakes which can also cause things like typhoons or tsunamis. Therefore, begin knowledgeable about the locations of fault lines and areas with the high potential for natural disasters as a result of shifting plates is very important. 
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3 years ago
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What is the period of a satellite in a geosynchronous orbit?
Dominik [7]
<span>23 hours 56 minutes and 4 seconds</span>
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4 years ago
A firework is designed so that when it is fired directly upwards, it explodes and splits into three equal-massed parts at its pe
Arturiano [62]

Answer:

the third piece landed 2\,\sqrt{2}  meters in a direction 45 degrees from the observer's right towards the front

Explanation:

Due to conservation of momentum, the momentum of the third piece must add to the other two momenta in vector from to render zero  (initial momentum of the firework on a plane parallel to ground. Therefore the momentum components of the third piece must have a component to the right equal in magnitude to the momentum of the piece that traveled to the left, and a momentum component pointing to the front of the observer of equal magnitude to that of the piece that traveled behind the observer. Then the direction of the third momentum must be at 45 degrees from the observer's right towards the observer's front.

Also, the magnitude of a momentum vector of such components, is given by the Pythagorean theorem. Recall also that the magnitudes of the momentum vectors of the first two pieces must be equal since they traveled equal distances.

|P_3|=\sqrt{P_1^2+P_2^2} \\|P_3|=\sqrt{P^2+P^2}\\|P_3|=\sqrt{2P^2}\\|P_3|=P\sqrt{2}

Then the distance traveled by the third piece must also keep this proportionality:

D_3=\sqrt{2} \,\,D\\D_3=\sqrt{2} \,*\,2\,\,meters\\D_3=2\,\sqrt{2} \,\,meters

4 0
3 years ago
When using the right-hand rule to determine the direction of the magnetic field around a current-carrying wire, the
notsponge [240]

Answer:

Thumb

Explanation:

The direction of the magnetic field can be determined by using the right-hand rule. According to this rule, hold a current carrying wire in your right hand such that the thumb of the right-hand point in the direction of electric current. The curled finger gives the direction of the magnetic field.

Hence, the thumb shows the electric current.                            

6 0
4 years ago
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Why do some astronomers object to the new definition of a planet that was adopted in 2006?
cestrela7 [59]

Answer:

A. New space missions show that Pluto is much larger than originally thought.

Explanation:

The new definition of a planet that was adopted in 2006, defined planet as  an object that orbits the sun, with sufficient mass to be round, not a satellite of another object, and has removed debris and small objects from the area around its orbit.

This new definition of a planet that was adopted in 2006, classified Pluto as "dwarf planet", because Pluto meets planetary criteria except that it has not cleared debris from its orbital neighborhood.

However, new Horizons spacecraft flew by Pluto in 2015, revealed that Pluto is much larger than originally thought

Therefore, the correct option is "A"

A. New space missions show that Pluto is much larger than originally thought.

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