Energy per unit volume represents

In a horizontal oil pipeline of constant cross-sectional area the pressure decrease between two point 300 km apart is 5000 pascal (1 pascal = 1 newton per square meter). What is the loss of energy per unit volume per unit distance? [Hint : Loss in energy =(P_(1))/(rho)-(P_(2))/(rho) because (P)/(rho) is pressure energy per unit mass and loss in energy per unti volume =P_(1)-P_(2) .]

KE per unit volume is:

KE per unit volume is:

Strain energy per unit volume is given by

The Young's modulus of a wire Y. If the energy per unit volume is E, then the strain will be

The Young's modulus of a wire Y. If the energy per unit volume is E, then the strain will be

The elastic energy per unit volume is terms of longitudinal strain sigma and Young's modulus Y is