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Leviafan [203]
2 years ago
10

Ô tô có khối lượng 2500kg

Physics
1 answer:
Galina-37 [17]2 years ago
6 0

Answer:

  1. <em><u>jsksjsjsj</u></em><em><u>sjsjnznxosbdisnsjjwkjejwjkksoddjndomswsl</u></em><em><u> </u></em><em><u>2</u></em><em><u>.</u></em><u>qowoapoooen</u><u> </u><em>kwmwkkwmem</em><em><u> </u></em><em><u>make</u></em><em><u> </u></em><em><u>me</u></em><em><u> </u></em><em><u>laugh</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>get</u></em><em><u> </u></em><em><u>out</u></em><em><u> </u></em><em><u>with</u></em><em><u> </u></em><em><u>you</u></em><em><u>?</u></em><em><u>?</u></em><em><u> </u></em><em><u>edit</u></em><em><u>!</u></em><em><u> </u></em><em><u>thanks</u></em><em><u> </u></em><em><u>so</u></em><em><u> </u></em><em><u>I</u></em><em><u> </u></em><em><u>was</u></em><em><u> </u></em><em><u>just</u></em><em><u> </u></em><em><u>going</u></em><em><u> </u></em><em><u>through</u></em><em><u>.</u></em><em><u> </u></em><em><u>com</u></em><em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>few</u></em><em><u> </u></em><em><u>weeks</u></em><em><u> </u></em><em><u>before</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>game</u></em><em><u> </u></em><em><u>was</u></em><em><u> </u></em><em><u>so</u></em><em><u> </u></em><em><u>bad</u></em><em><u> </u></em><em><u>at</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>beginning</u></em><em><u> </u></em><em><u>but</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>amazing</u></em><em><u> </u></em><em><u>how</u></em><em><u> </u></em><em><u>many</u></em><em><u> </u></em><em><u>things</u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>same</u></em><em><u> </u></em><em><u>with</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>rest</u></em><em><u>.</u></em><em><u> </u></em><em><u>so</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>way</u></em><em><u> </u></em><em><u>that</u></em><em><u> </u></em><em><u>they</u></em><em><u> </u></em><em><u>want</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>new</u></em><em><u> </u></em><em><u>one</u></em><em><u>?</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>best</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>you</u></em><em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>this</u></em>
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Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 39.9° wit
wariber [46]

Answer:

n=2.053

Explanation:

We will use Snell's Law defined as:

n_{1}*Sin\theta_{1}=n_{2}*Sin\theta_{2}

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1*Sin(39.9)=n_{2}*Sin(18.2)

Solving for n_{2} yields:

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Remember to use degrees for trigonometric functions instead of radians!

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3 years ago
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A 0.20 kg mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured
xxMikexx [17]

Answer:

b. 0.20 m/s.

Explanation:

Given;

initial mass, m = 0.2 kg

maximum speed,  v = 0.3 m/s

The total energy of the spring at the given maximum speed is calculated as;

K.E = ¹/₂mv²

K.E = 0.5 x 0.2 x 0.3²

K.E = 0.009 J

If the mass is changed to 0.4 kg

¹/₂mv² = K.E

mv² = 2K.E

v = \sqrt{\frac{2K.E}{m} } \\\\v =  \sqrt{\frac{2\times 0.009}{0.4} } \\\\v = 0.21 \ m/s\\\\v \approx 0.20 \ m/s

Therefore, the maximum speed is 0.20 m/s

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3 years ago
A steel block has a volume of 0.08 m³ and a density of 7,840 kg/m³. What is the force of gravity acting on the block (the weight
Alex17521 [72]
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gg
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