A car initially miving at 0.5m/s along a track. the car come to rest after travelling 1m. the car is repeated on the same of track, but car initial moving at 1m/s. How far does the car travel before come to rest?​

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?