3 years ago

Which statement is true about the speed of light waves in a medium?

Physics

1 answer:

Alex73 [517]3 years ago

5 0

Decreases with a decrease in density of medium

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The bottom one has the highest amplitude

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A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of

miskamm [114]

Answer:

q = 0.036 C

Explanation:

Given that,

Current passes through a defibrillator, I = 18 A

Time, t = 2 ms

We need to find the charge moved during this time. We know that,

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A 12.0-g bullet is fi red horizontally into a 100-g wooden block initially at rest on a horizontal surface. After impact, the bl

allochka39001 [22]

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so we know that

$W_f = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2$

$-\mu mg d = \frac{1}{2}m(v_f^2 - v_i^2)$

$-0.650(9.81)(7.5) = \frac{1}{2}(0 - v_i^2)$

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now by momentum conservation we have

$m_1 v_1 = (m_1 + m_2) v$

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3 years ago

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Answer:bad?

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2 years ago

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Based on its location in the periodic table, what statement best describes the element Ca

Sergeu [11.5K]

If what your trying to ask is what does it mean its calcium

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