Question

which best explains why a washing machine represents an open system. water and power come from external sources. <------- ans b. most washers can use a variety of laundry detergent brands. c. the amount of wash in a load varies. d. it has multiple cycles, such as wash and spin

Answer 1

A. water and power come from external sources.

Step-by-step explanation:

To determine if a system is a closed or an open one, we need to determine if it interacts with the external environment.

A closed system is the one that doesn't have interaction with the external environment, mass or energy is never transfered from the outside of the system.

An open system regularly exchanges feedback with an external environment.

In this case as the power and water, which are importat for the functioning of the washing machine, come from an external source, we are refering to an open system.

Answer 2

"Water and power come from external sources" is the one reason among the following choice given in the question that best explains why a washing machine represents an open system. The correct option among all the options that are given in the question is the first option. I hope the answer has helped you.