Answer:
dopamine is used to help with Parkinson
Explanation:
D. dopamine
The echo is weaker than the original sound since the echo has a smaller amplitude than the original sound because sound spreads and its intensity decreases with distance. For example, when the sound from a speaker is heard and is compared to its echo, the echo heard has a lower amplitude than the actual sound.
Answer:
All of the above
Explanation:
The steps that should be taken for rating the results is as follows
1. Pin location checking
2. Offical website checking for the address purpose
3. The checking should be done for the closer results in the case of non-returning
Therefore all of the above steps are required and taken for rating the results
Hence, the same is to be considered
Answer:
The height of the hill is 0.46 m.
Explanation:
Given;
mass of the child and sled, m = 50 kg
initial velocity of the sled, u = 0
final velocity of the sled, v = 3 m/s
The height of the high is calculated from the law of conservation of energy;
P.E at top = K.E at bottom
mgh = ¹/₂mv²
gh = ¹/₂v²

Therefore, the height of the hill is 0.46 m.