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Vadim26 [7]
3 years ago
12

Juan is comparing the brightness of two lightbulbs. Which SI unit should he use?

Physics
1 answer:
My name is Ann [436]3 years ago
5 0
You will use candela for comparing.
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Suppose that the velocity (in meters per second) of a sky diver falling near the Earth's surface is given by the following expon
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Answer:

4.7 s

Explanation:

The complete question is presented in the attached image to this solution.

v(t) = 61 - 61e⁻⁰•²⁶ᵗ

At what time will v(t) = 43 m/s?

We just substitute 43 m/s into the equation for the velocity of the diver and solve for t.

43 = 61 - 61e⁻⁰•²⁶ᵗ

- 61e⁻⁰•²⁶ᵗ = 43 - 61 = -18

e⁻⁰•²⁶ᵗ = (18/61) = 0.2951

In e⁻⁰•²⁶ᵗ = In 0.2951 = -1.2205

-0.26t = -1.2205

t = (1.2205/0.26) = 4.694 s = 4.7 s to the nearest tenth.

Hope this Helps!!!

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Which of the following statements best describes an electromagnetic wave with a long wavelength?
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It has a high frenquency and can only travel through a medium
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How do you find the molarity of: 48.2 g of sodium carbonate in 0.500 L of solution
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The answer is why lani

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If the amplitude of the resultant wave is twice as great as the amplitude of either component wave, and the wave exhibits reinfo
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As a transverse wave travels through a rope from left to right, the parts of the rope _______.
kupik [55]
<h3><u>Answer;</u></h3>

Are moving up and down.

As a transverse wave travels through a rope from left to right, the parts of the rope <u>are moving up and down</u>.

<h3><u>Explanation;</u></h3>
  • Transverse waves occur when a disturbance causes oscillations perpendicular to the propagation, that is the direction of energy transfer.
  • <em><u>Particles of the medium move perpendicular to the direction the transverse wave itself is moving.  For example, if the wave is moving to the right, the particles of the medium are moving up and down.</u></em>
  • <em><u>Therefore, as a transverse wave travels through a rope from left to right, the parts of the rope are moving up and down.</u></em>
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4 years ago
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