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3 years ago

14

How is the ionization energy, E, related to a group of elements?

2 answers:

NNADVOKAT [17]3 years ago

8 0

E decreases from top to bottom in a group of elements.

Eddi Din [679]3 years ago

6 0

The best and most correct answer among the choices provided by your question is the first choice or letter A.

<span>Ionization Energy decreases from left to right.</span>

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Which term is defined as a change in an object's position relative to a reference point?

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The answer would be REFERENCE POINT

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3 years ago

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A mass of 1.00×10−6 μkg is the same as

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2 years ago

Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He decides to move them at the

Over [174]

Answer:

Part a)

$a= 0.32 m/s^2$

Part b)

$F_c = 3.6 N$

Part c)

$F_c = 5.5 N$

Explanation:

Part a)

As we know that the friction force on two boxes is given as

$F_f = \mu m_a g + \mu m_b g$

$F_f = 0.02(10.6 + 7)9.81$

$F_f = 3.45 N$

Now we know by Newton's II law

$F_{net} = ma$

so we have

$F_p - F_f = (m_a + m_b) a$

$9.1 - 3.45 = (10.6 + 7) a$

$a = \frac{5.65}{17.6}$

$a= 0.32 m/s^2$

Part b)

For block B we know that net force on it will push it forward with same acceleration so we have

$F_c - F_f = m_b a$

$F_c = \mu m_b g + m_b a$

$F_c = 0.02(7)(9.8) + 7(0.32)$

$F_c = 3.6 N$

Part c)

If Alex push from other side then also the acceleration will be same

So for box B we can say that Net force is given as

$F_p - F_f - F_c = m_b a$

$9.1 - 0.02(7)(9.8) - F_c = 7(0.32)$

$F_c = 9.1 - 0.02 (7)(9.8) - 7(0.32)$

$F_c = 5.5 N$

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2 years ago

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Answer:

Photosynthesis is the pocess by which green plants make their own food.

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2 years ago

Lila is a track and field athlete.She has to complete four laps around the track, which is 400 meters. The race took her 6 minut

hoa [83]

V=d/t
V=?
d=400m(4)
=1600m
t=6 min.
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V=1600m/360s
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2 years ago