Answer:
Explanation:
We are given that
The wavelength of sound wave=
1 cm/s=
Speed of sound wave,v=
We have to find the period of the wave.
We know that
Frequency=
Using the formula
Frequency = Hz
Time period=
Using identity:
Hence, the time period of the wave=
Answer:
The initial velocity is
Explanation:
From the question we are told that
The height of the tree is
The distance of the position of landing from base is
According to the second equation of motion
is the initial velocity in the vertical axis
a is equivalent to acceleration due to gravity which is positive because the tiger is downward
So
=>
Now the initial velocity in the horizontal direction is mathematically evaluated as