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Andrew [12]
3 years ago
13

Which is an example of a mixture?

Physics
2 answers:
fgiga [73]3 years ago
7 0
The answer is: B. Trail Mix
Lena [83]3 years ago
7 0

Answer:

B. Trail Mix

Explanation:

There are different kinds of nuts, seeds, etc. This is a mixture

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A car takes 10 s to go from vi=0 m/s to vf=25 m/s. How far does the car travel in<br> that time?
SSSSS [86.1K]

Answer:

2.5 k

Explanation:

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What is the only way to let your body recover from overtraining? A. Take vitamins B. Rest for several days C. Eat a lot of prote
Luba_88 [7]

Answer:

B) Rest for several days

Explanation:

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What is the frequency of a sound wave having a velocity of 341 meters/second and a wavelength of 0.8 meters?
ololo11 [35]
Velocity=frequency/wavelength
frequency=velocity*<span>wavelength
</span>f=341*0.8
f=272.8 Hz
7 0
3 years ago
The diagram shows a car moving along a road.
crimeas [40]

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A constant speed

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3 0
3 years ago
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A) the unstretched length of each elastic rope is 24m. The rope obeys hookes law. The vertical distance between P and Q is 35m.
solong [7]

Explanation:

a) The rope obeys Hooke's law, so:

F = k Δx

The elastic energy in the rope is:

EE = ½ k Δx²

Or, in terms of F:

EE = ½ F Δx

Use trigonometry to find the stretched length.

cos 20° = 35 / x

x =  37.25

So the displacement is:

Δx = 37.25 − 24

Δx = 13.25

The elastic energy per rope is:

EE = ½ (3.7×10⁴ N) (13.25 m)

EE = 245,000 J

There's two ropes, so the total energy is:

2EE = 490,000 J

Rounded to one significant figure, the elastic energy is 5×10⁵ J.

b) The elastic energy in the ropes is converted to gravitational energy.

EE = PE = mgh

5×10⁵ J = (1.2×10³ kg) (9.8 m/s²) h

h = 42 m

Rounded to one significant figure, the height is 40 m.  So the claim is not justified.

6 0
3 years ago
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