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Alisiya [41]
3 years ago
9

An imaginary line perpendicular to a reflecting surface is called _________.

Physics
2 answers:
LekaFEV [45]3 years ago
7 0
<span>d. a refracting surface </span>
n200080 [17]3 years ago
5 0
<span>An imaginary line perpendicular to a reflecting surface is called "a normal" (principle line)

So, Your Answer would be Option B

Hope this helps!</span>
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The 5-kg block A has an initial speed of 5 m/s as it slides down the smooth ramp, after which it collides with the stationary bl
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Answer:

The coupled velocity of both the blocks is 1.92 m/s.

Explanation:

Given that,

Mass of block A, m_1=5\ kg

Initial speed of block A, u_1=5\ m/s

Mass of block B, m_2=8\ kg

Initial speed of block B, u_2=0

It is mentioned that if the two blocks couple together after collision. We need to find the common velocity immediately after collision. We know that due to coupling, it becomes the case of inelastic collision. Using the conservation of linear momentum. Let V is the coupled velocity of both the blocks. So,

m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\V=\dfrac{5\times 5+0}{(5+8)}\\\\V=1.92\ m/s

So, the coupled velocity of both the blocks is 1.92 m/s. Hence, this is the required solution.

8 0
3 years ago
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this vehichle has 896,000 jules of energy

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8 0
3 years ago
The wind increases to 14 mph from the north. Now what is your airspeed and what direction are you flying? If your destination is
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7 0
4 years ago
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Ask Siri or goggle has all answers



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