3 years ago

True or False: GLOBAL WINDS

Physics

2 answers:

jasenka [17]3 years ago

5 0

I believe the answer is tru

Anit [1.1K]3 years ago

5 0

I’m sure it’s false, like 75% sure

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Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 5.0

e-lub [12.9K]

Answer:

$f = 421.8 Hz$

Explanation:

When she moved a distance of 1 m from mid point she observe first destructive interference due to two speakers

so we can say that path difference of sound due to two speakers will be equal to half of the wavelength

so path difference is given as

$\Delta L = {3.5^2 + 12^2}^{0.5} - {1.5^2 + 12^2}^{0.5}$

so it will be

$\Delta L = 12.5 - 12.093$

$\Delta L = 0.4066$

now we know that

$\frac{\lambda}{2} = 0.4066$

$\lambda = 0.813$

now frequency of sound is given as

$f = \frac{v}{\lambda}$

$f = \frac{343}{0.813}$

$f = 421.8 Hz$

4 0

3 years ago

Acceleration is calculated by taking the change in velocity and dividing by the time. What is the

netineya [11]

Answer:

m/s/s

Explanation:

Acceleration is change in velocity over time.

a = Δv / t

a = [m/s] / [s]

a = [m/s/s]

4 0

3 years ago

An elevator has a mass of 3000 kg. If the upward tension in the

Liula [17]

Answer: 18 m

Explanation: because it does

7 0

3 years ago

Read 2 more answers

How does Newton's third law of motion describe forces?

svetlana [45]

I would say your answer is B, since Newton's 3rd law is, "For every action, there is an equal and opposite reaction."
It's talking about pairs of actions. Sorry if I'm wrong.

3 0

3 years ago

104470

sergey [27]

Answer:

Grain

Explanation:

I just got it wrong :)

5 0

4 years ago