If you ADD those displacements,
(4 km south) + (5 km south) = 9 km south
and
(2 km north) + (5 km north) = 7 km north
Then (9 km south) + (7 km north) = 2 km south
Answer:
Explanation:
Aceleration is a change on the velocity of the object in a given time.
For this case: the initial velocity is
and the final velocity is :
so, the change in velocity is:
and the change in time , according to the problem:
So, the aceleration is:
Speed is a derivation of energy (thats what my science teacher said)
Answer:
Iodine , caesium , strontium ,Plutonium
Explanation:
The isotopes of four main elements which include Iodine , caesium , strontium ,Plutonium contributed mainly to contamination in the Chernobyl accident which involved the release of harmful radioactive radiation into the environment.
The accident occurred in 1986 at Chernobyl , Ukraine as a result of errors made in the design of the reactor and inexperienced hands handling it.
This led to hundreds of death and negative effects on living and the environment around the area.