Answer:
23,8eV
Explanation:
A=Uq=12 (V)* 2* 1,6*10^-19 (C)=3,84*10^-18 (J)= 23,8 (eV)
I think it’s c) a transverse wave is made of particles that move perpendicular to the motion of the wave
Answer:
a = 0.827468
Explanation:
given,
half life of radium-224 = 3.66 days
now,

t is the time
A₀ is the amount at t = 0
at t = 0 , A(0) = 1
A(3.66) = 1/2
at t = 3.66


taking log both side
3.66 log (a) = log (0.5)
log a = -0.0822
now,
a = 0.827468
Answer:
B
Explanation:
the one that has a all black battery