What is the difference between degenerative and congenital diseases ?
1 answer:
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Answer:
Explanation:
The velocity of an object relative to a system, the velocity of that system
and the velocity measured by an observer at rest
are related by the following equation:
In this case, the object is the boat, the system is the water and we are finding the velocity measured by an observer at rest. So, the formula becomes:
In words, the velocity of the boat relative to an observer standing on either bank, is 18.0km/h.
Answer:
A
Explanation:
According to Newton's second law, acceleration is directly proportional to the net force. As the acceleration increases (when mass is constant), the net force increases. This is represented in the following formula.
a = acceleration
f = force
m = mass