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kari74 [83]
3 years ago
6

Why the dust particles undergoes small random movements? Plz help!!?

Physics
1 answer:
Rashid [163]3 years ago
8 0
Brownian motion<span> or pedesis is the </span>random motion<span> of particles suspended in a fluid </span>
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A person is pulling a freight cart with a force of 58 pounds. how much work is done in moving the cart 70 feet if the cart's han
Kobotan [32]

<span>The person is dragging with a force of 58 lbs at an angle of 27 degrees relating to the ground. We want to use cosine function to look for the horizontal force component. And then we can compute for W = (Horizontal Force) x (Distance). We want the horizontal force component since that is the component that is parallel to the direction the cart is moving. </span><span>

(cos 27 degrees)(58 lbs) = 51.69 lbs (This is the horizontal force component.) 
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6 0
3 years ago
What property do protons can electrons have that neutrons do not ?
Vesna [10]

Answer:

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4 0
3 years ago
A sound wave has a frequency of 425 hz. what is the period of this wave? 0.00235 seconds 0.807 seconds 425 seconds 850 seconds
77julia77 [94]

The period of the sound wave at the given frequency is determined as 0.00235 second.

<h3>Period of the sound wave</h3>

The period of the sound wave at the given frequency is calculated as follows;

Period is reciprocal of frequency.

T = 1/f

T = 1/425

T = 0.00235 second

Thus, the period of the sound wave at the given frequency is determined as 0.00235 second.

Learn more about period here: brainly.com/question/10428039

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2 years ago
If the force on an object is in the negative direction, the work it does on the object must be
garri49 [273]

Answer: Postive

Explanation:

8 0
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The surface area of a material is a factor that affects heat conductivity. Does heat flow faster through a large surface area or
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