Answer:
B. 2. A baseball was hit by a bat and now flying through the air.
Explanation: A baseball that is hit by a bat has a larger velocity, due to this the amount of kinetic energy is high.
Answer:
<h3>(A) The width

m</h3><h3>(B) The new width is

m</h3>
Explanation:
Given :
Focal length 
Maximum aperture
Wavelength
m
(A)
From rayleigh criterion,


rad
From angle formula,

Where
12 m ( given in example )
m

m
(B)
We know that
is proportional to the
and inversely proportional to the 
so we write the new width, here
is 5.5 times larger than above case

m
False, although they are usually a liquid. Solvents can be a solid or gas as well. Also, solutes can be in any state as well.
Answer: 2.4×10^-3 v/m
Explanation: distance between plates of capacitor (d) =5.0×10^-3m
Potential difference between plates (v) = 12v
Force on electronic charge (f) = 3.8×10^-16 N
Strength of electric field (E) =?
The formulae that relates potential difference, eoectiic field strength and distance between plates is given as
v = Ed
By substituting the parameters, we have that
12 = E × 5.0×10^-3
E = 12/ 5.0 × 10^-3
E = 2.4×10^-3 v/m
No light does not need medium to travel.Its an electromagnetic(EM) wave.All EM waves travel independent of medium. In contrast mechanical waves need a medium,sound waves,shock waves are mechanical and they need medium to transfer energy or travel.