What is the length of a simple pendulum oscillating on Earth with a period of 0.5s?

A shorter electromagnetic wave is _____. more powerful less powerful hotter colder

Svet_ta [14]

Answer

more powerful

Explanation
Electromagnetic waves are waves that do not require material medium for propagation. For example x-rays, UV and gamma rays.

From the wave equation, V= λf, when the wavelength is short the frequency is high.
Frequency determines the intensity of the wave. When high the frequencies are high the waves has more penetrating power, hence more powerful.

8 0

3 years ago

Read 2 more answers

Una ola en el océano tiene una longitud de 15m. Una onda pasa por unadeterminada positionfija cada 3s. ¿Cuál es la velocidad de

DerKrebs [107]

Answer:

Speed, v = 5 m/s

Explanation:

A wave in the ocean has a length of 15m. A wave passes through a fixed position every 3s. What is the speed of the wave?

It is given that,

Length of a ocean wave is 15 m

Time period of the wave is 3 s

We know that, frequency = 1/time period

$f=\dfrac{1}{3}\ Hz$

Let v is the speed of the wave. So,

$v=f\lambda\\\\v=\dfrac{1}{3}\times 15\\\\v=5\ m/s$

So, the speed of the wave is 5 m/s.

6 0

4 years ago

A pulse moving to the right along the x axis is represented by the function of

olasank [31]

Answer:

(a) Peak=2 cm, velocity= 3 cm/s (to the right)

(b) Peak= 2 cm, velocity= -3 cm/s (to the left)

Explanation:

Pulse Movement

The function of a moving wave is given by

$\displaystyle y(x,t)=\frac{2}{(x-3t)^2+1}$

where x,y are measured in cm and t in seconds.

Please check the graph shown in the image provided below. It shows the waveform at two different times, t=0 sec and t=1 sec. The peak value is displaced by 3 cm when t varies by 1 second. It shows a velocity of 3 m/s.

(a) For a given time, say t=0 the expression for the pulse is

$\displaystyle y(x,0)=\frac{2}{x^2+1}$

The maximum value or the pulse amplitude occurs when the denominator has its minimum value, that is when x=0

$\displaystyle A=y(0,0)=\frac{2}{0^2+1}=2$

At t=1 second, the function is

$\displaystyle y(x,1)=\frac{2}{(x-3)^2+1}$

Again, the maximum value of the wave occurs at the minimum value of the denominator, or when

$x-3=0 \rightarrow x=3$

Note the peak has moved 3 cm to the right when t increased by 1 second, this gives us a horizontal velocity of 3 cm/s.

We can corroborate for the general case knowing the peak value moves to the right at the point where

$x-3t=0 \rightarrow x=3t$

Taking the derivative with respect to t gives us the horizontal velocity:

$x'=3\ cm/s$

At t=2 seconds

$\displaystyle y(x,2)=\frac{2}{(x-6)^2+1}$

The amplitude and velocity are the same as determined before. The graph shown in the figure attached shows the pulse waves at t=0 and t=1

b) If the function was

$\displaystyle y(x,t)=\frac{2}{(x+3t)^2+1}$

Then when t increases, the peak value moves to the left on the x-axis. The velocity would be

$x'=-3\ cm/s$

It means the wave is traveling to the left instead of to the right

8 0

3 years ago

Why does icing sugar dissolve more rapidly than granular sugar?

kogti [31]

Icing sugar has a larger surface area meaning smaller particles allowing it to dissolve faster

3 0

4 years ago

1. How do you describe the path that the light passes through when it travels?

Ber [7]

A:

The white light is divided into its component hues - red, orange, yellow, green, blue, and violet - as it passes through the prism. Dispersion is the splitting of visible light into its many hues.

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B:

Dispersion is the splitting of visible light into its many hues. Each hue is associated with a certain wave frequency, as stated in the Light and Color unit, and different frequencies of light waves bend at different rates while passing through a prism.

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C:

The white light is divided into its component hues - red, orange, yellow, green, blue, and violet - as it passes through the prism. Dispersion is the splitting of visible light into its many hues.

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D:

The sun and the weather combine to create a rainbow. As it passes from air to denser water, light enters a water droplet, slowing and bending. The light bounces off the interior of the droplet, separating the wavelengths—or colors—that make up the droplet. A rainbow is created as light escapes the droplet.

5 0

2 years ago