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o-na [289]
2 years ago
11

In a hydroelectricity production, water falls from a dam into a turbine wheel 49 m below. What is the velocity of water at the t

urbine?
A) 0 m/s
B) 15.5 m/s
C) 31 m/s
D) 46.5 m/s
Mathematics
1 answer:
ozzi2 years ago
7 0

Answer:

C: 31 m/s

Step-by-step explanation:

It falls from a dam.

Thus;

Initial velocity; u = 0 m/s

Height; h = 49 m

Acceleration due to gravity is 9.8 m/s²

To solve for the final velocity this, we will use Newton's third equation of motion;

v² = u² + 2gh

v² = 0² + 2(9.8 × 49)

v = √960.5

v ≈ 31 m/s

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They have equal ticks and angles. They are congruent because they are equal in all sides and angles.

Step-by-step explanation:

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bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the
MAVERICK [17]
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Given the table below that gives the probabilities of outcomes.

\begin{tabular}
{|c|c|c|c|c|}
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6 0
3 years ago
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The scatter plot shows the study times and test scores for a number of students. How long did the person who scored 81 study?
Free_Kalibri [48]

Answer: Option A

50 minutes

Step-by-step explanation:

Observe in the diagram that the vertical axis represents the score obtained and the horizontal axis represents the study time.

To find out how many hours the person with a score of 81 studied, locate the point that is at a vertical distance of 81.

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