Calculate the force a piano tuner applies to stretch a steel piano wire 8 mm, if the wire is originally 0.94 mm in diameter and 1.43 m long.

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

What will happen in a hybrid vehicle if current flow becomes too high due to a short?