Answer:
D) Since the stars would move from East to West just as the Sun and Moon do.
Using the equation for period length, you get an answer of about 4.1 seconds.
the answer is definitely A.
Answer: the link isnt loading
Answer:
10.01 cm
Explanation:
Given that,
The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound traveling through a piece of fat tissue was 0.13 ms.
The average propagation speed for sound in body tissue is 1540 m/s.
We need to find the depth when the reflection occur. We know that, the distance is double when transmitting and arriving. So,

or
d = 10.01 cm
So, the reflection will occur at 10.01 cm.