Answer:
<u><em>Definition of spectral line: </em></u><em>one of a series of linear images formed by a spectrograph or similar instrument and corresponding to a narrow portion of the spectrum of the radiation emitted or absorbed by a particular source.</em>
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<u><em>Definition of Wavelength:</em></u><em> can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave. ... Wavelength is inversely proportional to frequency. This means the longer the wavelength, lower the frequency.</em>
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<em>So, the spectrum is the range of wavelength in visible light. While, wavelength is the length of a wave.</em>
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Explanation:
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When moving with the current, the speeds of the boat and current will add up. The first situation can then be represented by:
9 = 0.5(x + y)
While opposing the current, the speeds will be subtracted. Forming:
9 = 1.5(x - y)
The second option contains this equation system, so it is correct.
Answer:
Extraneous
Explanation:
Extraneous variables are any variables that you are not intentionally studying in your experiment or test
<span>Examples of genetically engineered (transgenic) organisms currently on the market include plants with resistance to some insects, plants that can tolerate herbicides, and crops with modified oil content.</span>
Answer:
15.6 m
Explanation:
d = diameter of the wheel = 43 cm = 0.43 m
r = radius of the wheel = (0.5) d = (0.5) (0.43) = 0.215 m
w₀ = initial angular velocity = 86 rpm = 9.01 rad/s
v₀ = initial linear speed = r w₀ = (0.215) (9.01) = 1.94 m/s
w = final angular velocity = 362 rpm = 37.91 rad/s
v = final linear speed = r w = (0.215) (37.91) = 8.15 m/s
t = time taken = 3.1 s
Using the equation
v = v₀ + at
8.15 = 1.94 + a (3.1)
a = 2 m/s²
d = distance traveled by a point at the edge of the wheel
Using the equation
d = v₀ t + (0.5) at²
d = (1.94) (3.1) + (0.5) (2) (3.1)²
d = 15.6 m