An object moves along the x - axis and its position is given by the function s(t)=t3−7t2+2t+5. find the acceleration at time t=−1.

Aci is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. assume that stray-load loss is normally distributed with σ = 2.3. (round your answers to two decimal places.)