How much work does Yessica do if she pushes her shopping cart with 15 N of force and makes it travel 3 meters in 5 seconds?

The answer is a 0.64 volts

The answer is a.  i hope this

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.