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son4ous [18]
2 years ago
11

A 3.5 Newton force (directed at a 30 degree angle with the vertical) to

Physics
1 answer:
kakasveta [241]2 years ago
3 0

Answer:

8.75J

Explanation:

use formula of work done

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A 0.153 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.700 m/s. It has a head-on col
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Answer:

3.1216 m/s.

Explanation:

Given:

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v1 = 0.7 m/s

M2 = 0.308 kg

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M1v1 + M2v2 = M1V1 + M2V2

0.153 × 0.7 + 0.308 × -2.16 = 0.153 × V1 + 0.308 × V2

= 0.1071 - 0.66528 = 0.153 × V1 + 0.308 × V2

0.153V1 + 0.308V2 = -0.55818. i

For the velocities,

v1 - v2 = -(V1 - V2)

0.7 - (-2.16) = -(V1 - V2)

-(V1 - V2) = 2.86

V2 - V1 = 2.86. ii

Solving equation i and ii simultaneously,

V1 = 3.1216 m/s

V2 = 0.2616 m/s

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3 years ago
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8 0
2 years ago
According to the periodic table, which of the following elements has five energy levels
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Which statement correctly describes why a compound is a pure substance?
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A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.

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A 2kg book is moved from a shelf that is 2m off the ground to a shelf that is 1.5m off the ground, what is it’s change in gravit
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