Zoe Reilas: A uniform slender rod of length L and mass m is suspended from a pin at B. A disk of the same mass m and radius r is connected to the bar at A. The system is released from rest. Calculate the angular acceleration of the system for the case in which the disk is rigidly attached and for the case in which the disk is connected by a frictionless pin

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

d) physical means can be used to separate the components of air.

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