What is the kinetic energy when the pendulum is at the halfway point (height=1 m) when the total mechanical energy is 4 J (from previous question)?

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2