If atoms are made up of smaller parts such as electrons, why are atoms considered the smallest particles of and element

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction