Answer:
2.6645m
Explanation:
applying motion equations we can find the answer,
Let assume ,
u = starting speed(velocity)
v = Final speed (velocity)
s = distance traveled
a = acceleration
by the time of reaching the highest point subjected to the gravity , the speed should be equal to zero
we consider the motion upwards , in this case the gravitational acceleration should be negative in upwards (assume g =10 m/s2 downwards)
that is,
Answer:
h ’= 12,768 cm
Explanation:
For this exercise let's use the constructor equation
1 / f = 1 / p + 1 / q
where f is the focal length, p the distance to the object and q the distance to the image
the magnification equation is
m = h '/ h = -q / p
let's find the distance to the object
1 / p = 1 / f- 1 / q
1 / p = 1/20 - 1 / (- 37.5)
1 / p = 0.076666
p = 13.04 cm
now let's use the magnification equation
h ’= - q / p h
let's calculate
h ’= - (-37.5) / 13.04 4.44
h ’= 12,768 cm
Answer:
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Explanation:
Stop with that link need to stop
The y -component of the electric field of an electromagnetic wave traveling in the +x direction through vacuum
- Ey = 375•Cos[kx - (2.20 × 10¹⁴t)]
- Speed of light
- c = 3×10^8m/s
- hat is the wavelength?
- Generally,
- The wavelength of electromagnetic wave is give as
- Ey = Emax•Cos(kx—wt)
- k = 2π/λ
- w = 2πf
- Ey = Emax•Cos(2πx/λ—2πft)
- Comparing this to the wave equation given,
- We notice that,
- 2πx/λ = kx
- Also,
- 2.20 × 10¹⁴t = 2πft
- t cancels out
- 2.20 × 10¹⁴ = 2πf
- f = 2.20 × 10¹⁴ / 2π
- f = 3.5 × 10¹³ Hz
- Since we are given that
- c = 3×10^8m/s
- Then, using relationship between c, v and λ.
- c = fλ.
- λ. = c/f
- λ. = 3×10^8 / 3.5 ×10¹³
- λ. = 8.57 × 10^-6m
- λ. = 8.57 μm
- The wavelength of the electromagnetic wave is 8.57 micro meter (8.57 μm)
<h3>What is
electromagnetic wave?</h3>
In terms of science, electromagnetic radiation (EMR) is made up of electromagnetic (EM) field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, visible light, ultraviolet, and radio waves. These waves are all a component of the electromagnetic spectrum.
Electromagnetic waves, which are synchronized oscillations of the electric and magnetic fields, are the traditional form of electromagnetic radiation. Due to the periodic alteration of the electric or magnetic field, electromagnetic radiation or waves are produced. Different wavelengths of the electromagnetic spectrum are created depending on the manner in which this periodic change takes place and the power generated. Electromagnetic waves move at the speed of light, typically abbreviated as c, in a vacuum. The oscillations of the two fields are perpendicular to one another and perpendicular in homogeneous, isotropic media.
To learn more about electromagnetic wave from the given link:
brainly.com/question/8773290
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