In order to slide a heavy cabinet across the floor at constant speed, you exert a horizontal force of 600 N. Is the force of fri
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Answer:
The angular displacement is
Explanation:
From the question we are told that
The initial angular speed is
The angular acceleration is
The time take is
Generally the angular displacement is mathematically represented as
substituting values
Given :
An object with weight 20 N was lifted to 0.5 meters.
To Find :
How high must you lift a 25 Newton book for it to have the same increase in potential energy as the given book.
Solution :
Since both have same potential energy :
Putting all given values in above equation :
Therefore, book with same potential energy is at a height of 0.4 m.
Answer:
Length of wire=2.16 m
Diameter of wire=0.232 mm
Explanation:
m= mass of copper wire= 0.82 g
R= Resistance of copper wire= 0.87 ohms
D= Density of copper= 8.96 g/cm^3
ρ= Resistivity= 1.7×10^-8 Ωm