Physics Questions

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

The focal length of a concave mirror with a radius of curvature of 20.0 cm is :

Atmospheric pressure is measured by __________.

For a body moving with uniform acceleration its final velocity equals _________________.

The unit of measurement of noise is

Magnetic striping is evidence of

If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?

___________________ is defined as the force acting per unit current per unit length on a wire placed at right angles to the magnetic field.