What is the cost of operating a 1.5 W electric clock for a year in Chicago? (The cost of electricity in Chicago is 16.1 cents per kWh).
Express your answer in dollars.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it