Convert 5g/cm^3 into kg/m^3

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity

70 give a real life example showing how sensory neurons work with the motor neurons