What frequency is received by a standing person watching an oncoming ambulance moving at 30.0m/s and emitting a steady 950. Hz sound from its siren? The speed of sound on this day is 340. m/s. * ​

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

radiation

explanation:

heat is transmitted by radiation

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.