Answer:
D.
Explanation:
First, a toaster uses electrical energy. Then, it uses this electrical energy and the mechanical energy of you pushing on the lever to produce thermal energy, or heat, and sound as the object in the toaster pops up.
You want to use the equation F=ma, so
20N=(0.170kg)a, divide 0.170 from both sides
a=117.64705..., since .170 has 3 significant figures, round to 3 significant figures
a=118 m/s²
Answer:
55 miles / hour = 1.475232 kilometers / minute