PLEASE PLEASE HELP! Galvanometer used as an ammeter & voltmeter

A galvanometer has a full scale deflection for a current of 2 mA. The coil has a resistance of 100 2. Modify the instrument
to produce the following.

a) an ammeter that can measure up to 5 A.

b) a voltmeter capable of measuring 10 V.

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

How will the system respond to a temperature increase?