A1,800 kg car is parked on a road that has an elevation angle of 7°. suppose the coefficient of static friction of the kinds of rubber and asphalt involved is 0.65. which is approximately the force of static friction between the tires and the road? question options: 11,350 n 9,300 n 18,000 n 2,200 n

The answer to this is decibel

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.