Water falls through a height of 50m. Determine the temperature rise at the bottom of the fall. [Neglect energy losses. Specific heat capacity of water = 4200Jkg-1 K-1, g = 10m/s²]

By: |Published on: May 21|Categories: Physics WAEC| 0 comments

A. 0.119°C
B. 0.840°C
C. 1.190°C
D. 8.400°C

Correct Answer: Option A

A. 0.119°C

Explanation

mgh = mcθ

θ=gh/c=(10×50)/4200

= 0.119°C

Users Also Read These:

SEE ALSO  The work function of a metal is 4.65ev and the metal is illuminated with a radiation of 6.86ev. What is the kinetic energy of the electrons ejected from the surface of the metal?

Copyright warnings! Do not copy.