B. An element.
Remember, the Peroidic Table of Elements.
A map can be used in geography.
An inch can be used in mathematics.
A thermometer can be used in wheather.
But an element is the most likely choice.
Answer:
The frequencies of the first four harmonics are 248 Hz, 496 Hz, 744 Hz, and 992 Hz
Explanation:
Given;
fundamental frequency, f₀ = 248 Hz
Frequency of the nth harmonic = n x fundamental frequency
First harmonic, f₁ = 1 x f₀ = 248 Hz
Second harmonic;
2f₀ = 2 x 248 Hz = 496 Hz
Third harmonic
3f₀ = 3 x 248 Hz = 744 Hz
Fourth harmonic
4f₀ = 4 x 248 Hz = 992 Hz
Therefore, the frequencies of the first four harmonics are 248 Hz, 496 Hz, 744 Hz, and 992 Hz
E is your correct answer.
This question involves the concepts of orbital velocity and orbital radius.
The orbital velocity of ISS must be "7660.25 m/s".
The orbital velocity of the ISS can be given by the following formula:

where,
v = orbital velocity = ?
G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²
M = Mass of Earth = 5.97 x 10²⁴ kg
R = orbital radius = radius of earth + altitude = 63.78 x 10⁵ m + 4.08 x 10⁵ m
R = 67.86 x 10⁵ m
Therefore,

<u>v = 7660.25 m/s</u>
Learn more about orbital velocity here:
brainly.com/question/541239