All categories

3 years ago

What is the speed of a wave with a wavelength of 3 m and a frequency of .1Hz?

2 answers:

6 0

We know,
Speed = Frequency * Wavelength
Speed = 3 * 0.1 m/s [hertz = 1/sec.]
So, your final answer is 0.3 m/s

Hope this helps!!

Akimi4 [234]3 years ago

6 0

The correct answer to the question is 0.3 m/s i.e the speed of the wave is 0.3 m/s.

CALCULATION:

As per the question, the wavelength of the wave is given as $\lambda=\ 3\ m.$

The frequency of the wave f = 0.1 Hz.

We are asked to calculate the speed [ V ] of the wave .

The relation among speed, frequency and wavelength of a wave is given as -

speed = frequency × wavelength

⇒ V = f × $\lambda$

= 3m × 0.1 Hz

= 0.3 m/s. [ans]

Hence, the speed of the wave will be 0.3 m/s.

You might be interested in

A convex lens with focal length 9 cm forms an image of an object placed 21 cm to the left of the lens. what is the distance to t

bixtya [17]

Answer:

15.75 cm

Explanation:

focal length of convex lens, f = + 9 cm

position of object, u = - 21 cm

Let the distance of image is v.

Use lens equation

1 / f = 1 / v - 1 / u

1 / 9 = 1 / v + 1 / 21

1 / v = 1 / 9 - 1 / 21 = (21 - 9) / (21 x 9)

1 / v = 12 / 189

v = 15.75 cm

8 0

3 years ago

Heat is transferred from the sun-warmed surface of earth to the cooler overlying troposphere via _______

vfiekz [6]

Heat is transferred from the sun-warmed surface of the earth to the cooler overlying troposphere via <u>conduction.</u>

<u />

<h3>Heat transfer from earth to atmosphere:</h3>

Conduction, convection, latent heating, and water phase transitions all help to carry heat from the Earth's surface, which has been warmed by the Sun, to the cooler troposphere above.

Latent heat flux is the worldwide transfer of latent heat energy via water and air currents. Here, we demonstrate how air circulation transports latent heat energy horizontally to cooler regions, where it condenses into rain or is deposited as snow, releasing the heat energy that was previously trapped there.

When air is heated from below by sunshine or by coming into contact with a warmer land or sea surface, convection occurs and the air below becomes less dense than the air above.

Learn more about Latent heat here:

brainly.com/question/12760196

#SPJ4

6 0

1 year ago

Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30° with respect to the norm

marta [7]

Answer:

reflected angle - secod mirror = 60°

Explanation:

I attached an image with the solution to this problem below.

In the solution the reflection law, incident angle = reflected angle, is used. Furthermore some trigonometric relation is used.