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photoshop1234 [79]
3 years ago
8

DISPLACEMENT WITH CONSTANT ACCELEration. Given information: displacement=64m, acceleration=9.81m\s and time interval=3s. calcula

te the initial velocity
Physics
1 answer:
balandron [24]3 years ago
3 0
HEYEYEYEYYEYEYDYDYDYD
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Consider the displacement vectors Ā=(i +6j)m, B = (3i– 7j)m,
andrezito [222]

Answer:

Dx = -0.5

Dy = -0.25

Explanation:

Two vectors are given in rectangular components form as follows:

A = i + 6j

B = 3i - 7j

It is also given that:

A - B - 4D = 0

so, we solve this to find D vector:

(i + 6j) - (3i - 7j) - 4D = 0

- 2i - j = 4D

D = - (2/4)i - (1/4)j

D = - (1/2)i - (1/4)j

<u>D = - 0.5i - 0.25j</u>

Therefore,

<u>Dx = -0.5</u>

<u>Dy = -0.25</u>

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3 years ago
Which scenarios are examples of physical changes? Select three options
pashok25 [27]

Answer:

A kid becoming an adult

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need a picture to answer specific questions.

Explanation:

All of these are physical changes. Hope that this helps you and have a great day :)

4 0
3 years ago
How does energy and temperature affect the density of fluids (liquids and gases)?​
Alex Ar [27]

Answer: When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. ... The molecules move more slowly and take up less space. Therefore temperature can affect density.

Explanation:

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HELPPP!!!! WILL MARK BRAINLIEST
Harlamova29_29 [7]

Answer: if it is in inches than it is 21.844 cm

Explanation:

7 0
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I select true helllpppp me
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your right answer is true

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