Answer:
the answer is A.
Explanation:
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Answer: The car bumper is designed to prevent or reduce physical damage to the front and rear ends of passenger motor vehicles in low speed collisions
Explanation:
The best way to prevent the corrosion of iron is to paint the exposed iron with protective paint, because that prevents water from rusting the iron.
Given that the rate of diffusion is 1 mm per 1 second. then the time it travels in 1 cm can be solve using the formula
t = d / r
where d is the distance
r is the rate
first, 1 cm is equal to 10 mm
t = 10 mm / ( 1 mm / s )
t = 10 s
