The mechanical advantage of a wedge is 7. If I apply a force of 200N to the object, what is the output force

You can find results and justify them? you can test your hypothesis

When seismic waves hit a fault, the waves are reflected off the fault. seismograph can detect these reflected seismic waves. geologists then use these data to map the fault's length and depth

Iwould have to say sorry i can't elaborate more. hope this though!