It has a neutral charge which means it is equal.
Inertia<span> and Mass. </span>Newton's first law of motion<span> states that "An object at rest stays at rest and an object in </span>motion<span> stays in </span>motion<span> with the same speed and in the same</span>direction<span> unless acted upon by an unbalanced force." Objects tend to "keep on doing what they're doing."</span>
Answer:
64.1°C
Explanation:
mass of automobile, M = 1500 kg
velocity, v = 35 m/s
mass of each brake, m = 8 kg
specific heat of iron, c = 448 J/kg°C
According to the conservation of energy
the kinetic energy of automobile = thermal energy of brakes
0.5 Mv² = 4 x m x c x ΔT
where, ΔT is the rise in temperature of the brake
0.5 x 1500 x 35 x 35 = 4 x 8 x 448 x ΔT
ΔT = 64.1°C
Thus, the change in temperature of each brake is 64.1°C.
Potential energy and work done are the same thing as much as kinetic energy and work done are the same thing. Potential energy is a state of the system, a way of storing energy as of virtue of its configuration or motion, while work done in most cases is a way of chaning this energy from one body to another.