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liraira [26]
2 years ago
14

Light travels at 3.0 × 108 m/s in a vacuum. Use the index of refraction for water to determine the speed of light in water. Roun

d your answer to the nearest tenth.
Physics
1 answer:
bixtya [17]2 years ago
3 0

2.3 × 10^8 m/s correct answer

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Different between : <br>Metalloids and alloys ​
iVinArrow [24]

Answer:

Alloys are just mixtures of metal and metalloids are metallic substances with properties of metal.

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an elevator suspended by a vertical cable is moving downward but slowing down. the tension in the cable must be:
vladimir1956 [14]

Answer:

F = M a is the vector equation involved

F = T - M g      are the forces acting on the elevator   (scalar equation)

T - M g = M a

T = M (a + g)    remember this a scalar

If a is slowing down then it must have a positive acceleration upwards

Therefor the tension in the cable must be greater than zero

When the tension increases to M g, a has increased to zero

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6 0
2 years ago
Which of the following actions would decrease the energy stored in a parallel plate capacitor when a constant potential differen
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Answer:

increasing the separation between the plates

Explanation:

The increase in the vacuum/separation between the plates in a parallel plate capacitor connected to a constant potential difference decreases the energy stored in the capacitor. the increase in the separation of the plates of a parallel plate capacitor reduces the capacitance of the capacitor because

Q(charge) = CV  V = VOLTAGE , c = capacitance  

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where D = distance between plates, e = dielectric, A = area of capacitor , V = potential difference

6 0
3 years ago
Sunny watched a video of her professor's lecture on genes and environment the night before class. In class the next day, her pro
IgorLugansk [536]

If Sunny watched a video of her professor’s lecture on genes and environment the night before class and her professor facilitated a discussion about the role of nature and nurture with respect to development, Sunny is experiencing being advanced in their lesson. Nurture plays an important part in this. The environment poses an encouraging and stimulating atmosphere where Sunny might enjoy learning about things.  

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Find the speed of a rock being thrown 20.5 meters (m) to the left in 4.0s.
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Answer:

5.125

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