In a sound wave, molecules of air become more closely spaced and less closely spaced as the air is disturbed. sound waves are

a. transverse, mechanical waves
b. longitudinal, mechanical waves
c. transverse, non-mechanical waves
d. longitudinal, non-mechanical waves

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop

Aplane's average speed between two cities is 600 km/h. if the trip takes 2.5 hours, how far does the plane fly?