Answer:
A. the wave speed v and Wavelength
Explanation:
Given that
Mass density per unit length=μ
Frequency = f
The velocity V given as
T=Tension
V=Velocity
V= f λ
λ=Wavelength
Therefore to find the tension ,only wavelength and speed is required.
The answer is A.
Answer:
number of Protons=16
number of Neutrons=16
number of electrons=32
Explanation:
Tip:-
<em><u>Always the number of protons = the number of neutrons.</u></em>
<em><u>Add them and you will get the number of electrons.</u></em>
<u><em>Happy to help</em></u>
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Answer:
D. Newton's second law
Explanation:
Newton's second law of motion states that force of an object is a product of its mass and its acceleration.
Mathematically, F= ma where m is mass and a is acceleration
So from the statement above : The acceleration of an object is proportional to the force applied to it and inversely proportional to its mass , it can be seen from the formula variation as;
F= ma -----making a the subject of the formula
a= F/ m
a= 1/m * F --------- a is inversely related to m as you can see from 1/m but directly related to F hence;
Increase in mass with the same force applied causes the body to accelerate slower where as when force increases, the body accelerates faster.
Answer:
131.25
Explanation:
i worked it out on a diffrent sheet so its hard to explain
The angle of reflection is equal to angle of incidence so the angle of reflection is also 32°.
