Answer:
The value is
Explanation:
From the question we are told that
The weight of the horizontal solid disk is
The radius of the horizontal solid disk is
The force applied by the child is
The time considered is
Generally the mass of the horizontal solid disk is mathematically represented as
=>
=>
Generally the moment of inertia of the horizontal solid disk is mathematically represented as
=>
=>
Generally the net torque experienced by the horizontal solid disk is mathematically represented as
=>
=>
=>
Gnerally from kinematic equation we have that
Here is the initial angular velocity velocity of the horizontal solid disk which is
So
=>
Generally the kinetic energy is mathematically represented as
=>
=>
Answer:
The wavelength of the waves created in the swimming pool is 0.4 m
Explanation:
Given;
frequency of the wave, f = 2 Hz
velocity of the wave, v = 0.8 m/s
The wavelength of the wave is given by;
λ = v / f
where;
λ is the wavelength
f is the frequency
v is the wavelength
λ = 0.8 / 2
λ = 0.4 m
Therefore, the wavelength of the waves created in the swimming pool is 0.4 m
Answer:
Explanation:
The 4 wires are connected in series: this means that the same current flow through them, and the voltage of the battery, V0, is equal to the sum of the voltages on each individual resistor:
Also, the equivalent resistance of the series circuit is
The voltage V2 across wire 2 is given by Ohm's law:
(1)
where I is the total current in the circuit, which is given by:
Substituting this into eq. (1), we find an expression for V2:
Answer:3.49 m/s
Explanation:
Given
Speed of marble at Bottom
Diameter of loop
As Energy is conserved therefore Energy at top is equal to energy at bottom
,where is the velocity at bottom
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