How far will sound travel through air at 20 c in 1.00 x 10^-3 s? 3.4 x 10^1 m 3.4 x 10^0 m 3.4 x 10^-3 m 3.4 x 10^-1 m

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents