An automobile with an initial speed of 5.13 m/s accelerates uniformly at the rate of 3.0 m/s2. Find the final speed of the car a
1 answer:
Answer:
Final velocity v=19.83 m/sec
Explanation:
We have given initial velocity u =5.13 m/sexc
Acceleration of automobile
Time t =4.9 sec
We have to find the final velocity v
According to first law of motion v = u+at ,here v is the final velocity , a is acceleration and t is time
So
So the final velocity is 19.83 m/sec
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Answer:
The length of the rod for the condition on the question to be met is
Explanation:
The Diagram for this question is gotten from the first uploaded image
From the question we are told that
The mass of the rod is
The mass of each small bodies is
The moment of inertia of the three-body system with respect to the described axis is
The length of the rod is L
Generally the moment of inertia of this three-body system with respect to the described axis can be mathematically represented as
Where is the moment of inertia of the rod about the describe axis which is mathematically represented as
And the moment of inertia of the two small bodies which (from the diagram can be assumed as two small spheres) can be mathematically represented as
Thus
Hence
=>
substituting vales we have
Hi there!
Using the equation for the electric field produced by an infinite sheet of charge:
E = Electric field strength (150 N/C)
σ = Surface charge density (? C/m²)
ε₀ = Permittivity of free space (8.8542× 10⁻¹² C²/Nm²)
We can rearrange the equation to solve for the surface charge density (charge per unit area)