Additional Work done to stretch the spring 0.4m is 6.4J
<u>Explanation:</u>
<u></u>
Given -
Work done to stretch a spring, W1 = 8J
Distance , d = 0.5m
Distance2, x = 0.4m
Work done 2, W2 = ?
Using Hooke's law,
Work done = k x
where k is spring constant
For distance 0.5m :
8 J = k X 0.5m
k = 8/0.5 = 16 J/m
For distance 0.4m:
W2 = 16 X 0.4 J
W2 = 6.4J
Additional Work done to stretch the spring 0.4m is 6.4J
Placing the electromagnetic radiation in order from the lowest energy to the highest energy : ( 2 ) C,A,B
<h3>Electromagnetic spectrum </h3>
In the electromagnetic spectrum the electromagnetic radiation with the shorter wavelength possess a higher energy while the electromagnetic radiation with a longer wavelength possess the lower energy.
The electromagnetic radiation as listed in the question with the longest wavelength is the radio waves therefore it possess the lowest energy while the radiation with the shortest wavelength is the gamma rays therefore it possess the highest energy.
Hence we can conclude that Placing the electromagnetic radiation in order from the lowest energy to the highest energy : ( 2 ) C,A,B
Learn more about electromagnetic spectrum : brainly.com/question/25847009
The projectile maintains its horizontal component of speed because there's nothing exerting any horizontal force on it. <em>(b) </em>
Gravity has no effect on horizontal motion.
Do 25-14 and you will get your answer