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kotegsom [21]
3 years ago
7

If the period of a given wave is 6 seconds, what is the frequency of the wave?

Physics
1 answer:
Ann [662]3 years ago
6 0

Answer:

\text{B. }0.17\:\mathrm{Hz}

Explanation:

The frequency of a wave is given by f=\frac{1}{t}, where t is the period of the wave.

Substituting t=6, we get:

f=\frac{1}{6}\approx \boxed{\text{B. }0.17\:\mathrm{Hz}}

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A boat radioed a distress call to a Coast Guard station. At the time of the call, a vector A from the station to the boat had a
VashaNatasha [74]

Answer:

d = 39.7 km

Explanation:

initial position of the boat is 45 km away at an angle of 15 degree East of North

so we will have

r_1 = 45 sin15 \hat i + 45 cos15 \hat j

r_1 = 11.64 \hat i + 43.46\hat j

after some time the final position of the boat is found at 30 km at 15 Degree North of East

so we have

r_2 = 30 cos15\hat i + 30 sin15 \hat j

r_2 = 28.98\hat i + 7.76 \hat j

now the displacement of the boat is given as

d = r_2 - r_1

d = (28.98\hat i + 7.76 \hat j) - (11.64 \hat i + 43.46\hat j)

d = 17.34 \hat i - 35.7 \hat j

so the magnitude is given as

d = \sqrt{17.34^2 + 35.7^2}

d = 39.7 km

4 0
3 years ago
The population in the United States in 2015 was 321 million people. It is projected to increase to 438 million people by the yea
jolli1 [7]

Answer:

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3 0
3 years ago
A ball with a mass of 5.0 g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect
Sloan [31]

Answer:

Explanation:

doubling the speed will have a greater impact on kinetic energy as KE is a product of mass and the square of velocity.

KE = ½mv²

Base KE = ½(0.005)2.0² = 0.01 J

doubling the mass

        KE = ½(0.010)2.0² = 0.02 J

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8 0
2 years ago
POSSIE
kotegsom [21]

Answer:

please find attached pdf

Explanation:

Download pdf
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3 years ago
What is not a symptom of sleep apnea?
nasty-shy [4]

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Explanation:

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