Answer:
Ruler/tape and stopwatch
Weighing balance
Explanation:
Since for momentum, we're concerned with mainly mass and velocity of an object then you will need weighing balance calibrated with the most accurate unit (normally grams or kilograms). The weighing balance will therefore be useful in measuring mass. To obtain velocity, you need to get distance that an object moves and divide it by time taken for the movement. Therefore, a tape or rule will be useful in measuring distance moved in meters while stopwatch will help you get time taken which consequently you use to get velocity.
A)
amplitudes
B)
wave speeds
C)
wavelengths
D)
polarization
Different colors after reflection appear due to the different wavelengths of light. Therefore, option C is correct.
The wavelength of the light can be defined as the distance between the two points in phase w.r.t. each other such as two crests or troughs on a wave. The frequency of the light is the number of oscillations of a wave in one second and has S.I. units of per second or hertz.
The expression between frequency (ν), wavelength (λ), and speed of light (c) is:
c = νλ
A wave moving at a fixed wave speed has a wavelength that is inversely proportional to the frequency therefore, the waves with higher frequencies have shorter wavelengths, while lower frequencies have higher wavelengths.
The speed depends upon the medium as it propagates. In particular, the speed of light in a particular medium is less than in a vacuum, therefore the same frequency will have a shorter wavelength.
When the light is reflected the colors are formed as due to different wavelengths.
Learn more about wavelength and frequency, here:
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Visible light waves are the only electromagnetic waves we can see has the longest wavelength
ability to bond
B.
reactivity
C.
ability to rust
D.
malleability
Answer: B.) by using a gravitational slingshot