What is the correct definition of speed.
2 answers:
Answer:
Option (C) is correct.
Explanation:
Speed of an object is defined as the distance covered per unit time. Speed is a scalar quantity It is composed only of the magnitude but the direction is absent. Mathematically, it is given by :
d = distance
t = time
So, the correct option is (c) " distance per time ". Its unit can be miles per hour or meter per second.
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Answer:
See the explanation below
Explanation:
The pressure is defined as the product of the density of the liquid by the gravitational acceleration by the height, and can be easily calculated by means of the following equation.
where:
Ro = density of the fluid [kg/m³]
g = gravity acceleration = 9.81 [m/s²]
h = elevation [m]
In this way we can understand that the greater pressure is achieved by means of the height of the liquid, that is, as long as the fluid has more height, greater pressure will be achieved at the bottom.
Therefore in order of decreasing will be
The largest pressure with the largest height of the liquid, container B. The next is obtained with container D, the next with container A and the lowest pressure with container C.
The pressure decreases as we go from the container B - D - A - C
Answer:
The frequency is
Explanation:
From the question we are told that
The frequency of the tuning fork is
The beat period is
Generally the beat frequency is mathematically represented as
The beat frequency is also represented mathematically as
Where is the frequency of the piano
So