In the image of the underwater submarine (i can't upload it), if the only 2 forces acting on the submarine are the downward force of gravity and the upward force of buoyancy, how will the submarine move? a. it will sink downward b. it will neither sink nor float. c. it will float upward

Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?