Answer:
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Answer:
9.6 m/s
Explanation:
Angle of projection, θ = 28°
Horizontal distance, R = 7.8 m
Let the velocity of projection is given by u.
The formula used to find the velocity of projection is given by
u = 9.6 m/s
Thus, the velocity of projection is 9.6 m/s.
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.
To determine the period of a wave you need not utilize the value for the wave speed.
The formula for the period is T= 1/f
T stands for period/time while f is for frequency. Substitute the value for the frequency which is 60 Hz. That would give you:
T= 1/60 Hz
convert Hz to cycles per second to extract the unit of time (s).
60 Hz x 1/s/1 Hz= 60/s
To continue the computation:
T=1/60/s that will give you a T= 0.017 s or 17 ms.
