Answer:
a) 1.58 kg s^{-1}
b) x_m e^{-1.58t} x_m is initial amplitude
c) 5 kg s^{-1}
Explanation:
given data:
mass =0.5 kg
k = 12.5 N/m
from the data given
a)
b)
where x_m is initial amplitude
c) critical damping amplitude
Answer:
Explanation:
Lead has an half life of 43.5 seconds
The radioactive decay law says
N(t) = No•2^(-t / t½)
Hence, the percent of a sample of the Lead-214 isotope that decay after a time equivalent to 7 half-lives
N(t) = No•2^(-t / t½)
N(t) / No = 2^(-t / t½)
N(t) / No = 2^-7
N(t) / No = 7.81 × 10^-3
To percentage
N(t) / No = 7.81 × 10^-3 × 100
N(t) / No = 0.781 %
Answer:the H2O and O2 produced have the same mass as the original H2O2
The work should be at least equivalent to the kinetic energy possessed by the boat and its riders. The formula for kinetic energy is written below:
W = KE
W = 1/2*mv²
W = 1/2*(1,000 kg)(1.3 m/s)²
<em>W = 845 J</em>