A gardener pushes her 90 kg wheelbarrow in a straight line out of her garage and across the yard in 18 s. If her average velocit
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The constant velocity that the spacecraft must travel is : 3.49 * 10⁸ m/s
<u>Given data :</u>
Distance of star from earth = 4.3 light years
Observers time = 3.7 years
<h3>Determine the constant velocity the spacecraft must travel </h3>Observers time = 3.7 * 365 * 24 * 60 * 60
Distance of star from earth = 4.3 * 9.46 * 10¹⁵
The velocity the spacecraft must travel will be calculated using the equation
V = distance / time
= ( 4.3 * 9.46 * 10¹⁵ ) / ( 3.7 * 365 * 24 * 60 * 60 )
= 3.49 * 10⁸ m/s
Hence we can conclude that The constant velocity that the spacecraft must travel is : 3.49 * 10⁸ m/s
Learn more about space travelling : brainly.com/question/1344685
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<em>Attached below is the missing detail related to the question </em>
As we know that frequency and wavelength are dependent on each other
and this is given by
here we know that
= wavelength
f = frequency
c = speed of wave
while for energy and intensity of wave we know that
Energy =
here A = amplitude of wave
so energy directly depends on amplitude of wave
so correct answer will be
<em>A) Energy</em>