Energy that travels in waves through matter
1 answer:
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Answer :
Explanation :
The word kinematics means the study of motion. Kinematic variables gives the description of the motion of the body.
Displacement, Velocity, acceleration and time are associated with the motion of particle.
Wavenumber is defined as the frequency of wave, which is measured in cycles per unit distance.
Wave number is also defines as:
where, is wavelength
since,
So,
Where, is angular frequency and
is velocity of wave.
Hence, the relationship between the angular wavenumber k and and kinamatic variable V is
Answer:
Explanation:
(2.2500x10^3) x (3.00 x10^5)
First add the power values since all are to power 10 hence this will be 3+5=8
Then multiply the digit intergers ie 2.25*3=6.75
Therefore, in scientific notation this will be represented as
Answer:
The correct option is B
Explanation:
In part A pressure is given as
In Part B we can calculate the pressure using the formula
Where F is the force which in this case is weight which can be obtained as follow
W = Mg
Substituting 70kg for M and for g
A is the area with a value
So substituting into the above equation
for part c
A
F
Therefore
From this we see that the value of P for part B is the greatest