Which statements describe the magnitude of an earthquake? check all that apply.

it is detected by a seismograph.
it is measured by the mercalli scale.
it is based on the size of seismic waves.
it is affected by the amount of fault movement.
it is used to determine damage caused by earthquakes.

the correct answers are :

1: It is detected by a seismograph.

3: It is based on the size of seismic waves.

4: It is affected by the amount of fault movement.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2