Explanation:
Force of gravity is the force which attracts objects along with its mass towards the Earth or ground.
Mathematically, F =
where F = force of gravity
G = gravitational constant
= mass of object 1
= mass of object 2
r = distance between the given masses
Therefore, more is the mass of object more will be the force of gravity. Whereas more is the distance between objects or masses then less will be the force of gravity.
Hence, we can conclude that gravity is inversely proportional to the distance between masses and directly proportional to the masses of objects.
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.