The first choice on the list is the correct one.
Answer:
3 s
Explanation:
velocity=initial velocity +a*t
34=10 + 8t
24=8t
t=3 s
I believe it is the neutron and the proton cloud because the electron cloud orbits on the outside
Answer:
112.63km/hr
Explanation:
The given dimension is :
70mph
We are to convert this to km/hr
1 mile = 1.609km
so;
70mph x 1.609 = 112.63km/hr
So,
The solution is 112.63km/hr
If you need a 'direction' for identifying it , yes it is a vector. for example you should know the direction of the velocity or force but you dont need same thing when measuring a mass