B is the correct answer since acid corrode on metals such as carbon, steel, zinc and such.
Answer:
Centripetal acceleration will be equal to
Explanation:
We have given time taken to cover 180° is 0.5 sec
So time taken by 360° is equal to = 2×0.5 = 1 sec
Radius of the circle r = 0.520 m
So distance 
So velocity 
We have to find the centripetal acceleration
Centripetal acceleration will be equal to 
So centripetal acceleration will be equal to
Answer:

Explanation:
Impulse on an object is given by
.
However, it's also given as change in momentum (impulse-momentum theorem).
Therefore, we can set the change in momentum equal to the former formula for impulse:
.
Momentum is given by
. Because the truck's mass is maintained, only it's velocity is changing. Since the truck is being slowed from 26.0 m/s to 18.0 m/s, it's change in velocity is 8.0 m/s. Therefore, it's change in momentum is:
.
Now we plug in our values and solve:
(two significant figures).
ANSWER:
5
Explanation:
Because they are elven in numbers