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Degger [83]
3 years ago
7

SOMEONE PLEASE HELP ME ASAP PLEASE!!!! SIGNIFICANT DIGITS!!!!!! THE ANSWER IS NOT −16.422​

Physics
2 answers:
Aleks04 [339]3 years ago
7 0

Explanation:

What exactly are u looking for?

grin007 [14]3 years ago
3 0

Of course it is not -16.422 because you are warned about significant digit.

The result is -16.422000 but if you consider the significant digits, the answer is -16.

That's right.

The greatest number in the multiplication process is the multiplier (5.1)

Now how many significant digits does 5.1 have? 2 significant digits (<u>5</u>.<u>1</u>)

Now the answer should also have 2 significant digits.

-16.422

Take the first 2 digits from the left.

-<u>16</u>.422

The underlined number is the product of the two numbers, in terms of significant digits.

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Mature salmon swim upstream, returning to spawn at their birthplace. During the arduous trip they leap vertically upward over wa
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Answer: minimum speed of launch must be 7.45m/s

Explanation:

Given the following:

Height or distance (s) = 2.83m

The final velocity(Vf) at maximum height = 0

Upward motion, acceleration due to gravity(g) us negative = -9.8m/s^2

From the 3rd equation of motion:

V^2 = u^2 - 2gs

Where V = final velocity

u = initial velocity

Therefore, u = Vi

u = √Vf^2 - 2gs

u = √0^2 - 2(-9.8)(2.83)

u = √0 + 55.468

u = √55.468

u = 7.4476 m/s

u = 7.45m/s

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3 years ago
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2 years ago
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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Remember to use degrees for trigonometric functions instead of radians!

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