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Alexxx [7]
3 years ago
8

Which of the following choices describes the type of image formed by a plane mirror?

Physics
2 answers:
Aleks04 [339]3 years ago
8 0
Virtual upright and the same size
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

Virtual, Upright and the same size

Explanation:

As we know for plane mirror we have

d_i = -d_0

image distance is same as that of object distance but on opposite side of the mirror.

now for the magnification we have

m = -\frac{d_i}{d_0}

m = +1

since magnification is positive so it must be virtual and upright image and since the magnitude of magnification is exactly 1 so it must be of same size as that of object size

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William made one comment to an employee recently assigned to his team complimenting her on her dress. Later she was reprimanded
Ilya [14]

Answer:

C

Explanation:

William should fully in the investigation. If the only plausible evidence of sexual harassment  is a subtle compliment of an employee's choice or way of dressing. Such comments may be opinionated but are insufficient or a weak evidence for a sexual harassment case.    

5 0
3 years ago
Read 2 more answers
 explain why earths acceleration is usually very small compared to the acceleration of the object the earth interact with
Marianna [84]

Answer:

F-ma

Explanation:

If you are speaking of objects like satellites, etc. then their mass is much less than that of the Earth. A good approximation is Newton's first law of motion:

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often written:

F = m a

The gravitational force is the same between the Earth and the object - only the mass differs. So the acceleration is inversely proportional to the mass.

6 0
3 years ago
1. Two blocks travel along a level frictionless surface. Block A is initially moving to the right at 5.0 m/s, while block B is i
ad-work [718]

Answer: 2.67 m/s

Explanation:

Given

Mass of block A  is m_a=2\ kg

mass of block B is m_b=3\ kg

The initial velocity of block A u_a=5\ m/s

the initial velocity of block B is u_b=0

After collision velocity of block A is v_a=1\ m/s

Conserving momentum

m_au_a+m_bu_b=m_av_a+m_bv_b\\\\2\times 5+3\times0=2\times 1+3\times v_b\\\\v_b=\dfrac{8}{3}=2.67\ m/s

The momentum of block A after the collision is P_a=2\times 1=2\ kg.m/s

Therefore, there is no change in sign.

6 0
2 years ago
Which of the following is not an example of work being done on an object?
IrinaVladis [17]

Answer:

Lifting a bag of groceries

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Why do different stars have different life cycles
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The answer is shape is determined. A stars life cycle is determined in its size
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