After Jimmy placed raw potato slices and hydrogen peroxide in a plastic bag, he concluded that an exothermic reaction had taken place. Which of the following supports Jimmy’s conclusion?

Asher cycles 12 miles in 16 hours. what is his speed?

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.