Which of the following is an example of chemical energy converted into mechanical energy? a. a windmill blades spinning
b. riding a bicycle
c. plugging in a lamp and turning it on
d. building a campfire

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

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

Which two particles are found in the center of an atom