Answer:
This is the answer: The speed of a proton is about 5.0 × 10⁵ m/s
Explanation:
Because of the speeds of protons! :D
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.
The second sentence, beginning with the words "The graph shows...", is false, as far as we can tell.
Answer:
oxygen silicon aluminun iron