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mafiozo [28]
3 years ago
7

2. Jessie studies seaweed and she usually takes large amounts of samples. She would take

Physics
1 answer:
Leni [432]3 years ago
7 0

Answer:

a

Explanation:

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A particle of mass moves under a force given bywhere and are unit vectors in the and directions. The particle is placed at the o
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The elapsed time when the particle returns to the origin is determined from the ratio of initial velocity and acceleration of the particle.

<h3>Time of motion of the particle</h3>

The time of motion of the particle is calculated by applying Newton's second law of motion.

F = ma

F = m(v)/t

where;

  • t is time of motion of the particle
  • m is mass of the particle
  • v is velocity of the particle

a = v - u/t

v = u + at

when the particle returns to the origin, direction of u, = negative.

final velocity = 0

0 = -u + at

at = u

t = u/a

Learn more about force here: brainly.com/question/12970081

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1 year ago
Which conditions are necessary for clouds to form?
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Answer: Some of the thing that are important for clouds to form are: Moisture - There must be sufficient water vapor in the air for a cloud to form. Cooling air - The air temperature must decrease enough for water vapor to condense

Explanation:

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3 years ago
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Which two optical devices use convex lenses to focus and enlarge images?
Andreas93 [3]
It is a reflecting telescope and a compound microscope. I know this for sure
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2 years ago
Why does it takes a long time to heat a room with a high ceiling?
vlada-n [284]

Answer:

High ceilings make a room feel large and open, but they can be difficult to cool and heat. Because hot air rises, the challenge becomes trying to keep the hot air where you want it and preventing if from being wasted where you don't.

Explanation:

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3 years ago
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Well, the thing is: we don't really know, as we don't even know how many species there are on earth.

If we take a look at the estimates of <span>World Wide Fund for Nature, an organization that works toward combating species extinction, their estimates vary from 200 to 100 000 - but a probable number is 20 000 (d). </span>
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