Answer:
The angular acceleration of the wheel is -6.54 rad/s²
Explanation:
We'll use the equations of motion for this.
w = 2πf
f = 75 rpm = 1.25 rps = 1.25 rev/s
w₀ = initial angular velocity = 2π × 1.25 = 7.85 rad/s
w = final angular velocity = 0 rad/s
t = 1.2 s
α = ?
w = w₀ + αt
0 = 7.85 + 1.2α
α = 7.85/1.2 = - 6.54 rad/s²
Answer:
<u><em>note:</em></u>
<u><em>solution is attached due to error in mathematical equation. find the attachment</em></u>
Answer:
Endothermic reaction
Explanation:
The heat from the object is being released or taken from an outer object causing it to turn back into a water also known as precipitation.