Which costs more using a 1.5kw microwave for 10 minutes or a 30w cd player for 3 hours

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?