Answer:
I'm not sure it is c I'm sure it is d
C: the mechanical energy isn't conserved. Some energy was lost to friction.
Answer:
27.0 milliliters is the nearest mililiter so 27.0 is the answer
Explanation:
Answer:
(a) 
(b) 
(c) 
Explanation:
Given that,
(a) An electron accelerated from rest through a potential difference of 100 V. The De Broglie wavelength in terms of potential difference is given by :

Where
m and e are the mass of and charge on an electron
On solving,

V = 100 V


(b) V = 1 kV = 1000 V



(c) If 


Hence, this is the required solution.