Please help with number 2

The magnetic field of an electromagnetic wave in a vacuum is Bz =(2.4μT)sin((1.05×107)x−ωt), where x is in m and t is in s. You

tatiyna

Answer:

Explanation:

Given

$B_z=(2.4\mu T)\sin (1.05\times 10^7x-\omega t)$

Em wave is in the form of

$B=B_0\sin (kx-\omega t)$

where $\omega =frequency\ of\ oscillation$

$k=wave\ constant$

$B_0=Maximum\ value\ of\ Magnetic\ Field$

Wave constant for EM wave k is

$k=1.05\times 10^7 m^{-1}$

Wavelength of wave $\lambda =\frac{2\pi }{k}$

$\lambda =\frac{2\pi }{1.05\times 10^7}$

$\lambda =5.98\times 10^{-7} m$

7 0

3 years ago

What are the major weather fronts? How do they differ from each other?

dmitriy555 [2]

Answer:

they differ each other bc it is a lot of with earth quakes and everything.

Explanation:

3 0

2 years ago

Jared is reading an article about the heavy rains that have fallen recently in his town. But he can’t separate the facts from th

Crank

<span>FACTS:
|
|
It’s that time of year again when the days are wet and cool.
   The rainy season is the best season.
Rain makes up part of Earth’s water cycle.
Water evaporates from streams, lakes, and oceans, then condensation
   and precipitation occur in the form of rain.
   Precipitation in the form of rain is better than snow.
   Snow this time of year makes people gloomy.
Rain is a great boon to local farmers.
It helps their crops grow.

</span>OPINIONS:
|
<span>|   It’s that time of year again when the days are wet and cool.
The rainy season is the best season.
   Rain makes up part of Earth’s water cycle.
   Water evaporates from streams, lakes, and oceans, then condensation
and precipitation occur in the form of rain.
Precipitation in the form of rain is better than snow.
Snow this time of year makes people gloomy.
   Rain is a great boon to local farmers.
   It helps their crops grow.</span>

6 0

2 years ago

Read 2 more answers

A baseball rolls off a 1.20m high desk and strikes the floor 0.50m away from the base of the desk . How fast was it rolling?

noname [10]

The initial velocity of the ball is 1.01 m/s

Explanation:

The motion of the ball rolling off the desk is a projectile motion, which consists of two independent motions:

- A uniform horizontal motion with constant horizontal velocity

- A vertical accelerated motion with constant acceleration ( $g=9.8 m/s^2$ , acceleration due to gravity)