Answer:
metal bolt
Explanation:
sorry if my explanation isn't correct but an object like feathers fall slower because of air resistance.
Seeds Is not a fatty acid
The answer should be C. In this question
To find the radial velocity of the object we are going to apply the regular Doppler formula:
[measured wavelenght - rest wavelenght/ rest wavelenght] = V/C, where V is the radial velocity and C is the speed of light which is equal to 300,000km/sec.
[400 - 800/800] = V/300,000 = - 150,000.
This means that the object is moving at a velocity of 150,000km/sec toward the observer.
The minus sign infront of the answer indicates that the object is moving towards the observer while a positive value will indicate that the object is moving away from the observer.
