Your answer is correct: Resident 4 would provide the scientist with the most valid results.
Answer:
(a): The cyclist is behind the car.
(b): The speed of the car are Vf= 31.97 m/s.
Explanation:
f= 440 Hz
f'= 415 Hz
Vo= 1/3 Vf
Vf= ?
V= 343.2 m/s
f'= f* ( (V-(-Vo) / (V-(-Vf) )
clearing Vf
:
Vf= 31.97 m/s
Vo= 10.65 m/s
Inertia is a property of all the objects. Galileo stated that inertia is proportional to mass. Therefore, the answer is D.
Answer:
The work done by the force on the particle is 29.85 J.
Explanation:
The work is given by:

Where:
x₁: is the lower limit = 0 m
x₂: is the upper limit = 1.9 m
Fₓ: is the force in the horizontal direction = (4.5 + 13.7x - 1.5x²)N

Therefore, the work done by the force on the particle is 29.85 J.
I hope it helps you!