Below are the <span> four aspects of society that have benefited from scientific endeavor
</span>
1. information
2. security
3. comfort
4. efficiency
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<span>1. </span>Electromagnetic
radiation are represented in waves. Each type of wave has a certain shape and
length. The distance between two peaks in a wave is called the wavelength. This
value is equal to the speed of light divided by the frequency.
<span>
Wavelength = c/f
Wavelength = 3x10^8 / </span><span>2.0 x 10^6</span>
Wavelength = 150 m
Every particle of mass is attracted to every other particle of mass. The magnitude of the force between two objects is proportional to the product of their masses, and inversely proportional to the square of the distance between them. The direction of the force is along the line between their centers.
(NOTE: Newton's 3rd law of motion tells us that gravitational forces always come in pairs. Between two objects, there are two forces ... one in each direction. Their strengths are equal ... Your weight on Earth is exactly equal to the Earth's weight on YOU.)
It is D. An object can acquire a net charge only when charges are transferred to or from it.
