Can someone help me number five idk if im correct

Physics

2 answers:

timofeeve [1]4 years ago

6 0

Yes your correct. :)

Colt1911 [192]4 years ago

4 0

Gravity is the force that attracts a object to the center of the earth.

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cluponka [151]

Answer:

25.2563 m/s

Explanation

This is the equation needed

$$v^2 = u^2 + 2ad$ where v is the final velocity, u is the initial velocity, a is the acceleration, and d the distance$

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3 years ago

Which is true about a concave mirror? Incident rays that are parallel to the central axis are dispersed but will be perceived as

Reil [10]

Answer:

'Incident rays that are parallel to the central axis are sent through a point on the near side of the mirror'.

Explanation:

The question is incomplete, find the complete question in the comment section.

Concave mirrors is an example of a curved mirror. The outer surface of a concave mirror is always coated. On the concave mirror, we have what is called the central axis or principal axis which is a line cutting through the center of the mirror. The points located on this axis are the Pole, the principal focus and the centre of curvature. The focus point is close to the curved mirror than the centre of curvature.

During the formation of images, one of the incident rays (rays striking the plane surface) coming from the object and parallel to the principal axis, converges at the focus point after reflection because all incident rays striking the surface are meant to reflect out. All incident light striking the surface all converges at a point on the central axis known as the focus.

Based on the explanation above, it can be concluded that 'Incident rays that are parallel to the central axis are sent through a point on the near side of the mirror'.

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3 years ago

What sort of trade-offs do you think engineers make between functionality, safety, and aesthetics when building a real bridge?

skelet666 [1.2K]

They make sure the bridge is functional and safe before the add the
aesthetics

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3 years ago

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Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. A stationary police car emits a sound of frequen

bixtya [17]

Answer:

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