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2 years ago

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A hiker walks 9.4 miles at an angle of 60° south of west. Find the west and south components of the walk. Round your answers to

the nearest tenth. Ax = miles Ay = miles

2 answers:

andrey2020 [161]2 years ago

3 0

For this problem, we use our knowledge on trigonometric functions on a right triangle to be able to calculate for the x and y components of the walk. We do as follows:

sin 60 = ax / 9.4
ax = 8.14

cos 60 = ay / 9.4
ay = 4.7

mixer [17]2 years ago

3 0

Answer:

Ax= -4.7

Ay= -8.1

Explanation:

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Answer:

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alexgriva [62]

Answer:

Explanation:

Given

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speed of block $v=2.5\ m/s$

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A ship 1200m off shore fires a gun. how long after the gun is fired will it be heard on the shore?

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Answer:

We know that the speed of sound is 343 m/s in air

we are also given the distance of the boat from the shore

From the provided data, we can easily find the time taken by the sound to reach the shore using the second equation of motion

s = ut + 1/2 at²

since the acceleration of sound is 0:

s = ut + 1/2 (0)t²

s = ut <em>(here, u is the speed of sound , s is the distance travelled and t is the time taken)</em>

Replacing the variables in the equation with the values we know

1200 = 343 * t

t = 1200 / 343

t = 3.5 seconds (approx)

Therefore, the sound of the gun will be heard at the shore, 3.5 seconds after being fired

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Answer:

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If period of the pendulum in preceding sample problem were 24s how tall would the tower be ?

frutty [35]

Answer:

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