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neonofarm [45]
3 years ago
7

A 1 kg box is sitting on a flat horizontal surface that has a coefficient of static friction value of 0.8. What answer best stat

es the minimum force required to move the box in the horizontal direction?
A. >-9.8N


B. >9.8N


C. >7.84N


D. >9N
Physics
1 answer:
Alja [10]3 years ago
5 0

Answer:

c

Explanation:

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Answer:

16400.........................

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The amplitude of a sound is the A. frequency of the sound. B. magnitude of displacement of a sound pressure wave. C. psychologic
AlladinOne [14]

Answer:

Option B. magnitude of displacement of a sound pressure wave

Explanation:

Amplitude is simply the maximum displacement of a wave from its mean position.

6 0
4 years ago
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Which two elements are the most abundant in the Earth's crust? A. silicon and oxygen B. silicon and magnesium C. iron and nickel
mariarad [96]

Answer: A. silicon and oxygen

Explanation:

The two most abundance elements in earth's crust are silicon and oxygen.

The most abundant element in earth's crust is Oxygen (O) which has a percentage composition of 46.6%.  Oxygen is mainly present as silicates, carbonates, sulphates etc.

The second most abundant element in earth's crust is Silicon (Si) which has a percentage composition of 27.7% . Silicon is present in the form of silicates.

The third most abundant element in earth's crust is aluminium (Al) which has a percentage composition of 8.1 %.

The fourth most abundant element in earth's crust is Iron (Fe) which has a percentage composition of 5.0 %.

7 0
3 years ago
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A person struggles very hard to lift a large boulder. He puts in so much effort, he starts to sweat, his heart rate increases, a
Lesechka [4]
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5 0
4 years ago
If a light ray strikes a flat mirror at an angle of 44° from horizontal the reflected ray will be​
ladessa [460]

Answer: The reflected ray will be 44 degrees.

Explanation: The Law of Reflection states the angle of incidence ( the incoming light ray) equals the angle of reflection ( the light ray being reflected) Therefore, the angle of reflection will be 44 degrees.

Hope that helped!

3 0
3 years ago
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