Answer: 0.33 Hz
Explanation: from the question, the distance between two successive crest is wavelength = 20.9m and the ocean rise and fall through one complete cycle every 3.00s which is the period. Hence T = period = 3.00s
Frequency = 1/ period
Frequency = 1/3 = 0.33 Hz
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
As we know that displacement is given as
now the displacement in 4.5 s and t = 4 s is given as
now displacement is given as
Part b)
So displacement of the ball in given interval of t = 4.00 to 4.5 s
time interval is given as
average velocity is given as
Part c)
So displacement of the ball in given interval of t = 4.00 to 4.1 s
average velocity is given as
Similarly for time interval t = 4.0 s to t = 4.01 s
average velocity is given as
Similarly for time interval t = 4.0 s to t = 4.001 s
average velocity is given as
so instantaneous velocity is given as
Answer:
The speed of the block when it reaches the bottom is 17 m/s.
(b) is correct option.
Explanation:
Given that,
Height = 15 m
Mass = 2 kg
We need to calculate the speed of the block when it reaches the bottom
Using conservation of energy
Where, g = acceleration due to gravity
h = height
Put the value into the formula
Hence, The speed of the block when it reaches the bottom is 17 m/s.
A string vibrates with a particular fundamental frequency. It is possible, however, to produce pitches with different frequencies from the same string. The four properties of the string that affect its frequency are length, diameter, tension, and density.
The frequency f = 1/T = v/λ. So f = v/λ. We also saw that, for the fundamental frequency f1, the string length is λ/2, so f1 = v/2L. The wave speed is determined by the string tension F and the mass per unit lenght or linear density μ = M/L, v = (F/μ)1/2 = (FL/M)1/2.
learn more about frequency from here: brainly.com/question/28238687
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Answer:
Negative
Explanation:
If a negatively charged object is used to charge a neutral object by induction, then the neutral object will acquire a positive charge. And if a positively charged object is used to charge a neutral object by induction, then the neutral object will acquire a negative charge:
We have a neutral sphere
1) Electrons are attracted to the positive charge
2) Electrons enter the sphere from ground, attrated to the + charge in the sphere
3) The sphere has an excess of e- having entered from the ground
4) Electrons redistribute uniformly