Answer:
hydrogen
helium
oxygen
Explanation:
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Answer:
Proportional
Explanation:
The conditions that must be met to produce SHM are;
-The restoring force must be proportional to the displacement and act opposite to the direction of motion with no drag forces or friction.
- The frequency of oscillation does not depend on the amplitude.
using the law of refraction, the incidence is equal to the reflection, but not refraction
It would be either A or C if its still moving and not stopping