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kifflom [539]
2 years ago
5

How many times does the light beam shown in FIGURE 26-59 reflect from (a) the top and (b) the bottom mirror?

Physics
1 answer:
Katarina [22]2 years ago
4 0

Answer:

5

Explanation:

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The mass number of iodine is 126, and it’s in the 53rd place in the periodic table. It has
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It has 52 Protons and 73 Neutrons
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3 years ago
Which statement about a pair of units is true?
grandymaker [24]

Answer:

option A is correct as 1 yard consist of 0.9144 meter which is less than one meter

Explanation:

from the above given statement option 1 is true

1 yard is equal to 0.9144 meter

while

1 mile is equal to 1.60934 km

1 foot is equal to 30.48 centimeter

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therefore all these units [left one] are larger than their respective conversion [ right one unit]

therefore option A is correct as 1 yard consist of 0.9144 meter which is less than one meter

3 0
3 years ago
What would be the first thing you would do if your clothes caught fire while working in a laboratory? select one of the options
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<span>c. run towards a source of water to extinguish the fire </span>
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Which conditions are necessary for clouds to form?
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Explanation:

7 0
3 years ago
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A car moving with an initial speed v collides with a second stationary car that is one-half as massive. After the collision the
Mashutka [201]

Answer:

4v/3

Explanation:

Assume elastic collision by the law of momentum conservation:

m_1v = m_1v_1 + m_2v_2

where v is the original speed of car 1, v1 is the final speed of car 1 and v2 is final speed of car 2. m1 and m2 are masses of car 1 and car 2, respectively

Substitute m_2 = m_1/2 \& v_1 = v/3

m_1v = \frac{m_1v}{3} + \frac{m_1v_2}{2}

Divide both side by m_1, then multiply by 6 we have

6v = 2v + 3v_2

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So the final speed of the second car is 4/3 of the first car original speed

5 0
3 years ago
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