A car is running uniformly with the velocity of 72km/h3, what is its acceleration? ​

Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

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