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Bezzdna [24]
3 years ago
5

What do physicist use to help us understand how things move and work?

Physics
1 answer:
Rashid [163]3 years ago
6 0

Answer:

Models,Mathematics

am not sure pliz mark brainliest

Explanation:

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The radioactivity of an atom is dependent on __________
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The radioactivity of an atom is dependent on the difference in binding energy .</span>
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Which of the following can break solid rock
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Which is a vector quantity
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Explanation:

Physical quantities are usually designated as either vector or scalar quantities.

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3 years ago
Please help me :))
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Answer:

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3 years ago
Which of the following statements are true of the horizontal motion of projectiles? List all that apply.a. A projectile does not
r-ruslan [8.4K]

Answer:

d. A projectile with a horizontal component of motion will have a constant horizontal velocity.

f. The horizontal velocity of a projectile is unaffected by the vertical velocity; these two components of motion are independent of each other.

g. The horizontal displacement of a projectile is dependent upon the time of flight and the initial horizontal velocity.

h. The final horizontal velocity of a projectile is always equal to the initial horizontal velocity.

Explanation:

When we are dealing with parabolic motion, the x-component of the velocity remains the same (hence, in the case of the horizontal component, the acceleration will always be zero), <u>while the y-component always change because it is affected by the acceleration due gravity that acts verticaly.</u>

On the other hand, the horizontal displacement x of the projectile is mathematically expressed as:

x=V_{ox} t  

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V_{ox} is the projectile's horizontal component of the initial velocity  

t is the time the parabolic motion lasts

This means <u>the projectile's horizontal displacement is directly proportional to the horizontal component of the initial velocity and the total time the projectile describes the parabolic motion</u>.

Of course, all of this considerations are assuming this is an ideal parabolic path and there is no air resistance.

5 0
4 years ago
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