Rutherford tested Thomson'shypothesis by devising his "gold foil" experiment. Rutherford was forced to discard the Plum Pudding modeland reasoned that the only way the alpha particles could be deflected backwards was if most of the mass in an atom was concentrated in a nucleus.
Answer:
Sound wave enters the outer ear and travels through a narrow passageway called the ear canel, which leads to the eardrums
Answer:
Explanation:
Given that,
Radius of the wheel, r = 20 cm = 0.2 m
Initial speed of the wheel, 
Displacement, 
To find,
The angular acceleration and the distance covered by the car.
Solution,
Let
is the angular acceleration of the car. Using equation of rotational kinematics as :



Let t is the time taken by the car before coming to rest.


t = 30.39 seconds
Let v is the linear velocity of the car. So,


v = 150.79 m/s
Let d is the distance covered by the car. It can be calculated as :


d = 4582.5 meters
or
d = 4.58 km