The amplitude of the wave's electric field is times if the intensity of some electromagnetic wave doubles.
- What is electromagnetic wave:
Electromagnetic waves also called EM waves, are waves that are created as a result of vibrations between an electric field and magnetic field.
The formula of Intensity of electromagnetic wave:
- I = 1/2 ( c* ε(0)* E(0)^2 )
where c is speed of light
E is amplitude of electric field
here Intensity of EM waves doubles so,
I' = 2*I
we can say that,
I ∝ E^2
E = sqrt ( I )
E' = sqrt ( 2*I )
hence
E' = * E
so, the amplitude of the wave's electric field is times if the intensity of some electromagnetic wave doubles
learn more about electromagnetic wave here:
<u>brainly.com/question/17057080</u>
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Answer:
The answer is 8.44*10^9 Newton
Explanation:
The equation for universal gravitation is:
Where:
G= 6.674×10^−11 N · (m/kg)^2
M(earth)=5.972 × 10^24 kg
M(asteroid)=5.0×10^13 kg
r=1.537*10^9 m (Calculated from average distance between moon and earth)
The force will be:
8.44*10^9 Newton
Wavelength=velocity/frequency
Time a.k.a period = 1/frequency
Step 1: solve for frequency using the first equation
0.79m = 355/frequency
Frequency=280.45 Hz
Step 2: solve the period using the second equation
1/280.45 = 0.00357=3.57*10^-3 seconds
The answer is true i hope this helps
Answer:
255.61 m
Explanation:
Use in downwards direction from the moment of flight till the car hits the bottom.
As the car fly off the cliff the velocity of the car in vertical direction will be zero.