What do radio waves and microwaves have in common?
2 answers:
Answer:
Both are at the side of the spectrum that has the lowest frequency.
Explanation:
We know that the electromagnetic spectrum is the set of several waves that are arranged in order of increasing wavelength of decreasing frequency. It consists of many waves like,
gamma rays, x- rays, ultraviolet rays, visible, infrared rays, microwave, radio waves.
Radio wave has the longest wavelength while gamma rays has maximum wavelength. From the attached figure, it is clear that the frequency of radio wave is least and that of microwave is second least frequency.
Hence, the correct option is (c).
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Answer:
Explanation:
We are asked to find the force being applied to a book. According to Newton's Second Law of Motion, force is the product of mass and acceleration.
The mass of the book is 0.75 kilograms and the acceleration is 0.3 meters per square second. Substitute these values into the formula.
- m= 0.75 kg
- a= 0.3 m/s²
Multiply.
1 kilogram meter per second squared is equal to 1 Newton. Therefore, our answer of 0.225 kilogram meters per second squared is equal to 0.225 Newtons.
<u>0.225 Newtons of force</u> are applied to the book.