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nata0808 [166]
3 years ago
10

Which of these is a biotic factor? A) topography B) soil C )air D)bacteria

Physics
1 answer:
vitfil [10]3 years ago
7 0
D I might be wroung .....i think this so the answer because biotic are all living things and bacteria is living
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A wave travels through a medium and displaces the particles perpendicular to the direction in Wich the wave is traveling . This
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4 years ago
How long is the image of a metrestick formed by a plane mirror?
Zinaida [17]

A plane mirror doesn't change the apparent size or shape of things.

-- If the meter stick is held parallel to the mirror, or is lying on the mirror,
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7 0
3 years ago
A cart is moving at 55 m/s at an angle of 25° to the ground. Determine the horizontal component.
Elodia [21]

Answer:

<em>The horizontal component of the velocity is 49.85 m/s.</em>

Explanation:

<u>Rectangular Components of a Vector</u>

A 2D vector can be expressed in several forms. The rectangular form gives its two components, one for each axis (x,y). The polar form gives the components as the pair (r,θ) being r the magnitude and θ the angle.

When the magnitude and angle of the vector are given, the rectangular components are calculated as follows:

v_x=v\cos\theta

v_y=v\sin\theta

Where v is the magnitude of the vector and θ is the angle with respect to the x positive direction.

The cart is moving at v=55 m/s at θ=25°, thus:

v_x=55\cos 25^\circ

v_x=49.85\ m/s

The horizontal component of the velocity is 49.85 m/s.

7 0
3 years ago
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