net Mars requires 687 days to orbit the sun, which has a mass M - 1.99 x 10° kg

Question

net Mars requires 687 days to orbit the sun, which has a mass M - 1.99 x 10° kg in an almost circular trajectory. Calculate the radius of the orbit and the orbital speed of Mars as it circles the surn. 6A driver travels northbound on a highway at a speed of 25,0 m/s. A police car, traveling southbound at a speed of 35.0 m/s, approaches with its siren producing sound at a frequency of 2500 Hz. Take the speed of sound in calm air to be 343 m/s. / (a) What frequeney does the driver observe as the police car approaches? (b) What frequency does the driver detect after the police car passes him? (c) Repeat parts (a) and (b) for the case when the driver is traveling southbound. Equations Ch11 GM he

Explanation / Answer

Q: 6

For source and observer moving towards each other

a) f = ( 343 + 25 ) 2500/ ( 343 - 35 ) = 2987 hz

b) f = ( 343 -25) 2500 / ( 343 + 35)= 2103.2 hz

For source and reciver moving in parallel

a) f = 2500 ( 343 - 25) / ( 343 - 35) = 2581. 2 Hz

b)f = 2500 (343+ 25) / ( 343 + 35) =2433.86 hz

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