Search over 10,000 free study notes

A system is in equilibrium when there is no resultant force and no resultant torque (or moment). A moment is the turning effect of applying a force on a body. It is the product of the force and the perpen...

Moment = force x distance

Pirate:

 force = 65 x 9.81 =637.65

distance = 1.2

moment = 637.65 x 1.6 =1020.24 = 1020 Nm (3 sig fig)

Parrot:

force = 1.1x 9.81 = 10.79...

(expect a diagram of a uniform seesaw with a pivot in the middle, infered from the question)

For the seesaw to turn, Bob must create a greater Moment than Ann.

Moment = Force * Perpedicular ...

The box for the solid should be an orderly set of circles with no gap between each one. The box for the liquid represents molecules with more energy but not all bonds have been broken. Therefore the box s...

Energy comes in many forms (e.g. chemical, potential, kinetic). We say that energy is transferred when it changes from one form to another. The conservation of energy means that in a closed system the amo...