A pendulum in a grandfather clock oscillates back and forth twice in one second what is it’s period
1 answer:
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Answer:
the strength of the magnetic field is 3 x 10⁻⁵ T
Explanation:
Given;
velocity of the cosmic ray, v = 5 x 10⁷ m/s
force experienced by the ray, f = 1.7 x 10⁻¹⁶ N
angle between the ray's velocity and the magnetic field, θ = 45⁰
The strength of the magnetic field is calculated as;
Therefore, the strength of the magnetic field is 3 x 10⁻⁵ T
Answer:
The electric force is
Explanation:
From the question we are told that
The Bohr radius at ground state is
The values of the distance between the proton and an electron
The electric force is mathematically represented as
Where n and p are charges on a single electron and on a single proton which is mathematically represented as
and k is the coulomb's constant with a value
substituting values
A: Has a higher frequency --> X-rays
B: Travels at the same speed --> Both
C: Has a longer wavelength --> Radio waves
Explanation:
Electromagnetic waves are waves consisting of oscillations of electric and magnetic field in a direction perpendicular to the direction of motion of the wave.
Electromagnetic waves travel at the speed of light () in a vacuum, and they are transverse in nature (the direction of vibration is perpendicular to the direction of propagation).
Electromagnetic waves are classified into different types according to their wavelength and frequency. In order from shortest to longest wavelength (and so, from highest to lowest frequency, since frequency is inversely proportional to the wavelength), we have:
Gamma rays
X-rays
Ultraviolet radiation
Visible light
Infrared radiation
Microwaves
Radio waves
Therefore, we can no says that:
X-rays: has a higher frequency than Radio waves
Radio waves: have a longer wavelength than x-rays
Both: they travel at the same speed
Therefore, the correct pairing is:
A: Has a higher frequency --> X-rays
B: Travels at the same speed --> Both
C: Has a longer wavelength --> Radio waves
Learn more about electromagnetic waves:
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