Physics, 21.05.2020 07:57 rahulshahi7569
The horn on a motor scooter emit sound waves with a frequency of 440 Hz. The driver blows the horn as the scooter moves towards you at a speed of 12.5 m/s. What is the frequency of the sound you hear? Assume the temperature is 20°C.
Knowns Unknown
v = vd = fd = ?
vs = fs =
Solve for the Unknown ïƒ Use fd = fs[(v-vd)/(v-vs)] with vd = 0 m/s
Evaluate the Answer
Are the units correct?
Is the magnitude realistic?
Answers: 2
Physics, 21.06.2019 18:00
Abaseball has a mass of 0.145 kg and approaches a bat at 40.0 m/s. after it is hit, the ball leaves the bat at 50.0 m/s directly back. find the impulse of the bat on the ball. 7.25 kg*m/s 13.1 kg*m/s 5.80 kg*m/s 1.45 kg*m/s
Answers: 2
Physics, 21.06.2019 22:50
Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.
Answers: 2
Physics, 22.06.2019 02:30
Gunpowder residue is most likely to show up where on a shooters hands
Answers: 1
The horn on a motor scooter emit sound waves with a frequency of 440 Hz. The driver blows the horn a...
History, 11.06.2020 10:57
Mathematics, 11.06.2020 10:57
Mathematics, 11.06.2020 10:57
Biology, 11.06.2020 10:57
Social Studies, 11.06.2020 10:57
Physics, 11.06.2020 10:57
Mathematics, 11.06.2020 10:57