Answer:
0.124 miles
Explanation:
Since the radius of the atom R = 10000r where r = radius of nucleus. Now, if r = 2.0 cm = 0.02 m,
R = 10000r
= 10000 × 0.02 m
= 200 m
We know that 1 mile = 1609 m.
So the radius of the atom in miles is R = 200 m × 1 mile/ 1609 m = 0.124 miles
So, the radius of the atom in miles is 0.124 miles
I believe that the mechanical energy would transform from starting out as kinetic, the reaching the top it would be potential, then go back to kinetic as it is falling back down.
I'm not 100% sure that this is right but if I had to take a guess this is what I would say.
Answer: 330 m
Explanation:
The speed of sound 
is defined as the distance traveled by the sound wave 
in a especific time 
:
Where:
is the speed of sound
is half the time the sound wave travels since the person speaks, the sound wave hits the hill and then returns to the person again as an echo
is the distance between the person and the hill
So, we have to find :
Finally:
Answer:
a = 9.8 m/s²
Explanation:
Acceleration due to gravity on Earth is constant, which is 9.8 m/s²
