Answer:
KE = 4 mv2 m = 2xKE valami. V m.
Explanation:
T = 2π √ (m/k)
T / 2π = √ (m/k)
T√k = 2π √m
(T√k) / 2π = √m
( (T√k) / 2π)^2 = m
m = ( (7.5√82.5) / 2π)^2
m = 117.66 Kg
V=W/Q
107V= W/17C
= We= 107×17 J
= 1819 J
hope it helps
