Answer:
A. The period of an oscillation does not depend upon amplitude.
Explanation:
The period of a spring-mass system is:
T = 1/f = 2π√(m/k)
where f is the frequency, m is the mass, and k is the spring constant.
The answer isn't B. There are no frictionless systems in the real world.
The answer isn't C or D. As shown, the frequency is a function of both the mass and the spring constant.
The answer isn't E. Turning motion into heat is not an advantage for a clock.
The correct answer is A. The period of the system does not depend on the amplitude.
Answer:
a
Explanation:
because 20 + 20 = 40 and 40 = 8 * 5
Newton's second law says any net force on an object results in acceleration, F=ma. So anything not accelerating has no net force. Consider compressing a spring with your hands and holding it still. You push on the spring to hold it out of its natural position (out of equilibrium) but it is not accelerating so the net force is zero. It's pushing back on you with the same force as you are pushing on it.
In Electromagnetic spectrum, X-rays has very high frequency but gamma-rays has more than that. If you consider cosmic rays as an electromagnetic wave, then it would be highest energetic and has highest frequency.
In short, Your Answer is "Cosmic rays"
Hope this helps!