I think the the answer is satellite, I could be wrong
Answer:
a
Explanation:
I think bec. I am in small school
The forces in some car crashes are greater than others; therefore, the body can be more severely injured by greater and more powerful forces. I hope this helped! :^)
Answer:Explained Below
Explanation:
Radiation in everyday language refers to certain type of subatomic particle released by a radioactive unstable nucleus.It can be used to kill the cancer by damaging the DNA of cancer cells.
The transmission of energy in the form of waves via a material medium is called radiation in astronomical context.
We can do this with the conservation of momentum. The fact it is elastic means no KE is lost so we don't have to worry about the loss due to sound energy etc.
Firstly, let's calculate the momentum of both objects using p=mv:
Object 1:
p = 0.75 x 8.5 = 6.375 kgm/s
Object 2 (we will make this one negative as it is travelling in the opposite direction):
p = 0.65 x -(7.2) = -4.68 kgm/s
Based on this we know that the momentum is going to be in the direction of object one, and will be 6.375-4.68=1.695 kgm/s
Substituting this into p=mv again:
1.695 = (0.75+0.65) x v
Note I assume here the objects stick together, it doesn't specify - it should!
1.695 = 1.4v
v=1.695/1.4 = 1.2 m/s to the right (to 2sf)
