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STatiana [176]
3 years ago
5

Q: A: Sarah and Maria made a telephone using two cans and a string. It was a very long string. Maria went upstairs in her house

and Sarah stayed downstairs. Maria spoke softly into the can. "I can hear you!' Sarah said back. How can this happen? A) Sound waves travel through a vacuum. B) Sound waves travel from high to low. C) Sound waves travel through solids like the string. D) Maria talked so loudly that Sarah could hear her without the phone.
Physics
2 answers:
Margarita [4]3 years ago
5 0

Answer:

The correct answer is C.

Explanation:

GrogVix [38]3 years ago
3 0
This contraption is a lot of fun, and you really should try it
some time.

The sound waves move from one can to the other one 
by traveling through the string.
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Rzqust [24]
Only kinetic

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3 years ago
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Which vector has an x-component with a length of 3?<br> А. С.<br> B. d<br> C. a<br> D. b
worty [1.4K]

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B.d

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2 years ago
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If i apply 280 n of force to a 40kg object, what will it's acceleration be?
nika2105 [10]

Answer:

f=ma

f=280N

m=40kg

a=?

280=40a

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6 0
3 years ago
An fm radio station broadcasts at 98. 6 mhz. What is the wavelength of the radiowaves?.
victus00 [196]

The wavelength of the radio waves is 3.04 cm.

<h3>Calculation:</h3>

λf = c

λ = c/f

where,

λ = wavelength

c = speed of light

f = frequency

Given,

f = 98.6 MHz = 98.6 × 10⁶

c = 3 × 10⁸

To find,

λ =?

Put the values in the formula,

λ = c/f

λ = 3 × 10⁸/98.6 × 10⁶

  = 0.0304 × 10²  m

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Therefore, the wavelength of the radio waves is 3.04 cm.

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3 0
1 year ago
1. Al descomponerse su vehículo una persona tira de su auto con la ayuda de una cuerda con una fuerza de 3500 N que forma un áng
OleMash [197]

Responder:

Fy = 2474,8737

Fx = 2474,8737

Explicación:

Dado que :

Dado:

Fuerza, F = 3500 N

Ángulo formado con la horizontal, θ, = 45 °

Los componentes de una fuerza se pueden descomponer en componentes verticales y horizontales.

El componente vertical Fy; y

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Fy = 3500 * sin45 °

Fy = 2474,8737

El componente horizontal:

Fx = Fuerza * cosθ

Fy = 3500 * cos45 °

Fy = 2474,8737

8 0
2 years ago
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