Physics, 29.06.2019 23:00 hdjsjfjruejchhehd
Acar is moving towards a student at constant speed. the student notices that the sound the car makes gets louder and louder as the car approaches. the student suggests that the car sounds louder as it approaches because of the doppler effect that he learned about in science class this week. how would you respond to the above statement made by the student? a) the student has stated a valid conclusion for his observation. b) the student has drawn a poor conclusion because the car does not get louder. c) the student has drawn a poor conclusion because the doppler effect is about frequency and not amplitude. d) the student has drawn a poor conclusion because the doppler effect is about amplitude and not frequency.
Answers: 1
Physics, 22.06.2019 05:00
In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.
Answers: 1
Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Physics, 22.06.2019 21:10
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2
Answers: 2
Acar is moving towards a student at constant speed. the student notices that the sound the car makes...
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