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Misha Larkins [42]
2 years ago
9

Which of the following equations illustrates the law of conservation of matter?

Physics
1 answer:
Anvisha [2.4K]2 years ago
8 0

Answer:

A

Explanation:

the balancing is correct in the first one

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7 0
2 years ago
Read 2 more answers
2. An airplane traveling north at 220. meters per second encounters a 50.0-meters-per-second crosswind
Alex777 [14]

The resultant speed of the plane  is (3) 226 m/s

Why?

We can calculate the resultant speed of the plane by using the Pythagorean Theorem since both speeds are perpendicular (forming a right triangle).

So, calculating we have:

ResultantSpeed=\sqrt{VerticalSpeed^{2}+HorizontalSpeed^{2}}\\\\ResultantSpeed=\sqrt{(220\frac{m}{s})^{2}+50\frac{m}{s})^{2}

ResulntantSpeed=\sqrt{48400\frac{m^{2} }{s^{2} }+2500\frac{m^{2} }{s^{2} } } \\\\ResultantSpeed=\sqrt{50900\frac{m^{2} }{s^{2} }}=226\frac{m}{s}

Hence, we have that the resultant speed of the plane  is (3) 226 m/s

Have a nice day!

5 0
2 years ago
What is the kinetic energy of a 0.15 kg baseball that is moving with a velocity of 50 m/s?
goblinko [34]
Using the equation:

ke \:  =  \frac{1}{2} m{v}^{2}
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ke  = 188  \: (3sf)


Ans: 188 J
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2 years ago
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