Doppler Shift lets you see a star A. Move back and forth
<h3>What is Doppler Shift?</h3>
This refers to the frequency change of a wave in relation to an observer as it moves back and forth.
Hence, we can see that the thing which astronomers can learn from the Radial Velocity Method is D. Period of orbit and minimum mass of a planet as it measures the wavelengths of absorption lines in its spectrum.
Read more about doppler shift here:
brainly.com/question/4052291
#SPJ1
Answer:
3. increases with an increase in temperature.
Explanation:
The air more water vapor at higher temperatures because at higher temperatures the air expands and the inter-molecular space increases so the room for water molecules increases.
Warm air keeps the water molecules warm and prevents them from condensing.
The air can hold the moisture only upto its saturation quantity after which the precipitation occurs in the form of rain, snow, hail, sleet etc.
Answer:
Part a)
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car
Part b)
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car
Part c)
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car
Explanation:
Red car
mass = 1000 kg
speed = 10 m/s
Yellow car
mass = 2000 kg
speed = 5 m/s
Blue car
mass = 500 kg
speed = 20 m/s
Light Blue car
mass = 1000 kg
speed = 20 m/s
Green car
mass = 500 kg
speed = 10 m/s
Purple car
mass = 4000 kg
speed = 5 m/s
Part a)
Now we know that momentum of each car is product of mass and velocity
so we will have
Red Car



Yellow Car



Blue Car



Light Blue Car



Green Car



Purple Car



So the momentum is given as
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car
Part b)
Impulse is given as change in momentum so here we can say that final momentum of all the cars will be zero as they all stops and hence the impulse is same as initial momentum of the car
so the order of impulse from largest to least is given as
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car
Part c)
Force is defined as rate of change in momentum
Now let say all cars will stop in same time interval
so we will have

so we will have
force is in same order as that of impulse
so it is given as
Purple car = Light Blue car > (Red car = Yellow Car = Blue car) > Green Car