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Gelneren [198K]
3 years ago
14

what is the final speed of an object that starts from rest and accelerates uniformly at 4.0 meters per second over a distance of

8.0 meters
Physics
1 answer:
sladkih [1.3K]3 years ago
5 0
The final speed would be 8.0 m/s
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Question 25
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Answer:

o The result of a chemical change is a different  composition; in a physical change, the composition  remains the same.

Explanation:

In a chemical change, new kinds of matter are produced although the atoms are the same.

For physical changes, no new kinds of matter formed. Only the state of substances changes.

  • Most chemical changes are usually irreversible
  • Physical changes are reversible in most parts.
  • Changes in state and form are salient characteristics of physical changes.
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2 years ago
If a diffraction grating has 3700 lines per cm, what is the spacing d between lines
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So first we find the gap between the slits by the formula d=1/N 

<span>N is number of lines per metre so 3700 line/cm = 370000 lines/m </span>
<span>So d=2.7*10^-6 </span>

<span>Now we use the formula dsin(angle)=n(wavelength) </span>

<span>d is the same </span>
<span>n is the order of the diffraction pattern </span>

<span>so wavelenth=dsin(angle)/n </span>
<span>=[(2.7*10^-6)*sin30]/3 </span>
<span>=4.5*10^-7 m</span>
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3 years ago
As you approach your vehicle and perform checks it is not necessary to always
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2. Be alert to other pedestrians and drivers.

3.) Search for signs of movement between, beneath and around objects to both sides of your vehicle

4.) check the spare tire for proper inflation
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3 years ago
According to Newton’s Third Law, action and reaction are
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<span>B. equal and in opposite directions</span>
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Read 2 more answers
Sharon throws a 0.20 Kg with an acceleration of 10 m/s/s.
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Force=A×M
10m/s×0.20kg
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