Answer:
F = 0.0545 N
Explanation:
Let's use Newton's second law for rotational movement
τ = I α
The moment of inertia for a bar supported by some ends is
I = 1/3 m L²
Torque is
τ = F L
Let's replace
F L = 1/3 m L² α
F = 1/3 m L α
Let's reduce angular acceleration to SI units
Alf = 26º / s² (π rad / 180º) = 0.454 rad / s²
Let's calculate
F = 1/3 0.5 0.72 0.454
F = 0.0545 N
Answer:
0.057 joules is needed to create the total rotational energy each second.
Explanation:
The energy rate is the ratio of total energy to time, which coincides with the definition of power at constant rate:
0.057 joules is needed to create the total rotational energy each second.
Answer:
D) a Battery
Explanation:
The best real-life example of direct current is a battery. Batteries have positive and negative terminals on a battery, the electrons in the wires will begin to flow to produce a current.
