What measures we can't answer without the measures
The friction is 2.5N. The Net force is 10 N - 2.5 N .= 7.5 N.
acceleration = 7.5 / 5 = 1.5 m/s^2
Answer:
is the current through the body of the man.
energy dissipated.
Explanation:
Given:
- time for which the current lasted,
![t=43\times 10^{-6}\ s](https://tex.z-dn.net/?f=t%3D43%5Ctimes%2010%5E%7B-6%7D%5C%20s)
- potential difference between the feet,
![V=21000\ V](https://tex.z-dn.net/?f=V%3D21000%5C%20V)
- resistance between the feet,
![R=550\ \Omega](https://tex.z-dn.net/?f=R%3D550%5C%20%5COmega)
<u>Now, from the Ohm's law we have:</u>
![I=\frac{V}{R}](https://tex.z-dn.net/?f=I%3D%5Cfrac%7BV%7D%7BR%7D)
![I=\frac{21000}{550}](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B21000%7D%7B550%7D)
is the current through the body of the man.
<u>Energy dissipated in the body:</u>
![E=I^2.R.t](https://tex.z-dn.net/?f=E%3DI%5E2.R.t)
![E=38.181^2\times 550\times 43\times 10^{-6}](https://tex.z-dn.net/?f=E%3D38.181%5E2%5Ctimes%20550%5Ctimes%2043%5Ctimes%2010%5E%7B-6%7D)
![E=34.5\ J](https://tex.z-dn.net/?f=E%3D34.5%5C%20J)
Answer:
The height at wich the object floats
Explain
took on edge 2020
Answer:
Explanation:
Given
Displacement is
of Amplitude
i.e.
, where A is maximum amplitude
Potential Energy is given by
![U=\frac{1}{2}kx^2](https://tex.z-dn.net/?f=U%3D%5Cfrac%7B1%7D%7B2%7Dkx%5E2)
![U=\frac{1}{2}k(\frac{A}{3})^2](https://tex.z-dn.net/?f=U%3D%5Cfrac%7B1%7D%7B2%7Dk%28%5Cfrac%7BA%7D%7B3%7D%29%5E2)
![U=\frac{1}{18}kA^2](https://tex.z-dn.net/?f=U%3D%5Cfrac%7B1%7D%7B18%7DkA%5E2)
Total Energy of SHM is given by
Total Energy=kinetic Energy+Potential Energy
![K.E.=\frac{1}{2}kA^2 -\frac{1}{18}kA^2](https://tex.z-dn.net/?f=K.E.%3D%5Cfrac%7B1%7D%7B2%7DkA%5E2%20-%5Cfrac%7B1%7D%7B18%7DkA%5E2)
Potential Energy is
th of Total Energy
Kinetic Energy is
of Total Energy
(c)Kinetic Energy is ![0.5\times \frac{1}{2}kA^2](https://tex.z-dn.net/?f=0.5%5Ctimes%20%5Cfrac%7B1%7D%7B2%7DkA%5E2)
![P.E.=\frac{1}{4}kA^2](https://tex.z-dn.net/?f=P.E.%3D%5Cfrac%7B1%7D%7B4%7DkA%5E2)
![\frac{1}{2}kx^2=\frac{1}{4}kA^2](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dkx%5E2%3D%5Cfrac%7B1%7D%7B4%7DkA%5E2)