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4 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Physics

1 answer:

lara [203]4 years ago

8 0

<h2>Answer:</h2>

The speed of the sound wave is 340 m/s. The correct option is C.

<h3>Explanation:</h3>

Here in question description the frequency and wave length is given and we have to find the velocity/speed of the sound wave.

Frequency is the time taken for the passage of one wave. Wavelength is the total length of crust and trough in meters.

The velocity is the product of frequency and wavelength.

V = λ ∙ f

By putting the values in given formula:

v = 100 Hz × 3.4 m = 340 m/s

Hence the speed of the wave is 340 m/s.

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A 75 kg skydiver can be modeled as a rectangular "box" with dimensions 20 cm * 40 cm * 180 cm. what is his terminal speed if he

Zina [86]

Terminal speed=136.7 m/s

the formula for the terminal speed is given by :

V= $\sqrt{\frac{2 mg}{\rho a C}}$

m= mass=75 kg

a= area=0.2 x 0.4=0.08 m²

ρ= density of air=1.23 kg/m³

C= drag constant =0.8

so V= $\sqrt{\frac{2 *75*9.8}{1.23*0.08*0.8}}$

v= 136.7 m/s

4 0

3 years ago

A plane cruising at 233 m/s accelerates at 17 m/s 2 for 4.8 s. What is its final velocity? Answer in units of m/s. 013 (part 2 o

Volgvan

Answer:

Final velocity will be 314.6 m/sec

Distance traveled = 1314.24 m

Explanation:

We have given initial velocity u = 233 m/sec

Acceleration $a=17m/sec^2$

Time t = 4.8 sec

From first equation of motion $v=u+at$ , here v is final velocity, u is initial velocity and t is time

So $v=233+17\times 4.8=314.6m/sec$

Now we have to find distance traveled

From second equation of motion

$S=ut+\frac{1}{2}at^2=233\times 4.8+\frac{1}{2}\times 17\times 4.8^2=1314.24m$

So distance traveled in given time will be 1314.24 m

4 0

3 years ago

A nautical mile is _____.

Leviafan [203]

Grater than a statute mile

5 0

3 years ago

Um tanque grande e aberto, com um líquido não viscoso, tem uma fuga 4,5m abaixo da superfície livre do líquido. Qual é, teoricam

kotegsom [21]

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4 years ago

A sinusoidal wave of wavelength 2.00m and amplitude 0.100 m travels on a string with a speed of 1.00 m/s to the right. At t = 0

N76 [4]

The frequency of the wave is 0.5Hertz

<h3>How to calculate the frequency of a wave</h3>

The formula for calculating the velocity of a wave is expressed as:

velocity = frequency * wavelength

Determine the formula for the frequency

frequency = velocity/wavelength

Given the following parameters

Velocity = 1.00 m/s

wavelength = 2.00m

Determine the frequency

f = 1.00/2.00

f = 0.5Hz

Hence the frequency of the wave is 0.5Hertz

Learn more on velocity of wave here: brainly.com/question/3148541

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8 0

2 years ago