It moved from 0 cm to 5 cm at a constant speed of 1 cm/s.

it moved from 5 cm to 0 cm at a constant speed of 4 cm/s.

it moved from 0 cm to 4 cm at a constant speed of 1 cm/s.

it moved from 4 cm to 0 cm at a constant speed of 4 cm/s.

Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.

Which statement best explains why the overall charge on an atom is zero?

10. the kinetic theory of matter states that atomic particles will move if the temperature is above the freezing temperature of water atomic particles bounce off each other one time in their life atomic particles are constantly bumping off each other because particles are in direct contact with each other at all times all matter is made up of atomic particles which are in constant random motion