Which could be an example of a balanced force? An asteroid moving at a constant speed through space
A box of dishes falling from a counter
A rocket taking off
O A car accelerating from a stop sign

Atransverse wave is traveling on a string stretched along the horizontal x-axis. the equation for the vertical displacement y of the string is given by y = (1.8 x 10-3)cos[π(13x - 60t)], where all quantities are in si units. what is the maximum speed of a particle of the string

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.