A car traveling at 12 m/s slows down with an acceleration of -1.5 m/s2. What is the
1 answer:
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Answer:
Explanation:
Given
mass of object
kinetic Energy
Tension in string
mass is moving in a horizontal circle so tension is providing the centripetal acceleration
therefore
where r=radius of circle
kinetic energy of particle
divide 1 and 2 we get
Answer:
The magnitude of the force per unit length is 2.145 x 10⁻⁵ N/m and the direction of the force is outward or repulsive since the current in the two parallel wires are flowing in opposite direction.
Explanation:
Given;
distance between the parallel wires, r = 5.0 cm = 0.05 m
current in the first wire, I₁ = 1.65 A
current in the second wire, I₂ = 3.25 A
The magnitude of the force per unit length between the two wires is calculated as follows;
Therefore, the magnitude of the force per unit length is 2.145 x 10⁻⁵ N/m and the direction of the force is outward or repulsive since the current in the two parallel wires are flowing in opposite direction.