A water tank of dimensions 3m*2m*2m is half filled with with water. how much woill the pressure be exerted by water on the bottom o the tank? (density of water=1000kg/m^3 and g=9.8m/s^2)

Transfer of electrons. hope it !

The object's initial distance above the groundthe object's initial velocity

The answer is mean don't know

Jenny and fred both play a long note on their trombones. a stationary observer hears the sound increasing and decreasing repeatedly in loudness. which of these must be true? the sound waves from the two trombones have slightly different frequencies.the sound waves from the two trombones have the same frequency.the sound waves from the two trombones have slightly different amplitudes.the sound waves from the two trombones have the same wavelength.the sound waves from the two trombones have slightly different velocities.  lolthe answer is          the sound waves from the two trombones have slightly different frequencies.