Two waves travel simultaneously through the same medium. The first wave is described by y 1( x, t) = (1.00 cm)cos( kx- t)and the second wave by y 2( x, t) = (8.00 cm)sin( kx- t). What is the amplitude of the resulting wave (in cm)?

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.