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posledela
3 years ago
11

A skateboarder rolls down the sidewalk with an initial velocity of 0 m/s. If her acceleration is

Physics
1 answer:
VikaD [51]3 years ago
3 0

Answer:

80m/s

Explanation:

to find it you have to work it out by using the formula distance divided by speed to find time.

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The interstellar medium is the matter as well as the radiations that are found in the galaxies occupying the spaces between the star systems.
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Therefor, the right choice is:
<span>A. Water, Carbon dioxide, and Hydrogen</span>
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The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^
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The solution for this problem is:

 
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3 years ago
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Natasha_Volkova [10]

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3 years ago
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A 6.9 kg object is suspended by a string from the ceiling of an elevator. The acceleration of gravity is 9.8 m/s 2 . Determine t
lina2011 [118]

Answer:

Tension, T = 87.63  N

Explanation:

Given that,

Mass of the object, m = 6.9 kg

The string is acting in the upward direction, a = 2.9 m/s²

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As the lift is accelerating upwards, it means the net force acting on it is given by :

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= 6.9 (2.9+9.8)

= 6.9(2.7)

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So, the tension in the string is 87.63  N.

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