<span>To determine the magnitude and the direction of the resultant force, we assume that the forces are in XY coordinate plane and the angles that are given are from the x axis.
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<span>The 110 N force is said to act at 90 deg which means it is along the Y axis. The </span><span>55 N force is said to act at 0 deg which means it is along the X axis. so, a right angle is made by the two forces. Thus, the
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<span>X component of the resultant force = 55 N </span>
<span>Y component of the resultant force = 110 N </span>
<span>Magnitude of the resultant force would be calculated as follows:
R = √(Fx^2 + Fy^2)
R = √(55^2 + 110^2) </span>
<span>R = √(15125) </span>
<span>R = 123 N </span>
<span>The resultant force would have its terminal side in the x-axis. We calculate angle θ as follows:
</span>
<span>tan θ = Fy/Fx </span>
<span>tan θ = 110 N /55 N = 2
</span>θ = arctan(2)
θ <span>= 63.4 degrees
</span>Therefore, the m<span>agnitude of the resultant force is 123 N and the direction would be at an angle of 63.4 degrees.</span>
If this metal is replaced with a metal having a higher work function, yellow light may be able to remove electrons but the electrons ejected will have less kinetic energy and the required stopping potential would be less. So in order to remove electrons( with more kinetic energy), we need to use light having even more shorter wavelength than yellow light because light with shorter wavelength possesses more energy and the electrons will eject with greater kinetic energy. Hence BLUE light should be used for better results cuz its wavelength is less than yellow light. Hope it helps.
Answer:
The correct answer is C: Disposal of radioactive waste.
Explanation:
During nuclear fission reactions, many intermediate radioisotopes are produced. For example, uranium releases different mass distribution isotopes and these isotopes emit radiations.
Most harmful isotopes for the environment are strontium and cesium because these have half-lives and an inclination of mixing in food chains.
When radioactive wastes are removed from nuclear reactors they flow towards the swimming pool and also have the tendency to isolate the short-lived isotopes from the environment.
Therefore, radioactive waste disposal has always remained a major problem
A - opposite
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