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Rus_ich [418]
3 years ago
9

A 388 Hz tuning fork is resonating in a closed tube on a warm day when the speed of sound is 346 m/s. What is the length of the

closed tube?
A. 0.89m
B. 1.12 m
C. 0.28m
d. 0.22m

Please help!
Physics
2 answers:
Marizza181 [45]3 years ago
5 0

Answer:

A

Explanation:

because u are subtracting if this is from flvs that is what i did and it was right

pickupchik [31]3 years ago
5 0

Answer:

A 0.89m

Explanation:

V= fλ

λ= V/f

λ=346/358

λ=0.89m

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A World War II bomber flies horizontally over level terrain, with a speed of 287 m/s relative to the ground and at an altitude o
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Answer: 7.38 km

Explanation: The attachment shows the illustration diagram for the question.

The range of the bomb's motion as obtained from the equations of motion,

H = u(y) t + 0.5g(t^2)

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That means t = √(2H/g)

The horizontal distance covered, R,

R = u(x) t = u(x) √(2H/g)

Where u(x) = the initial horizontal component of the bomb's velocity = 287 m/s, H = vertical height at which the bomb was thrown = 3.24 km = 3240 m, g = acceleration due to gravity = 9.8 m/s2

R = 287 √(2×3240/9.8) = 7380 m = 7.38 km

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HOW FAR DOES A UNICYCLE TRAVEL AT A SPEED OF 20 M/S FOR 15 SECONDS?​
astra-53 [7]

Given:-

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We know,

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