The following table shows information about three different objects sitting on a bookshelf. Some data are missing from the table!
Mass Height
Acceleration Due
to Gravity
3m
9.8 m/s
Object 1 4 kg
Object 26 kg
Object 3
9.8 m/s
2 m
98 m/s
What is the gravitational potential energy of object 1?
735 J
1176
176.4
196

What was the first instrument to ever record an earthquake?

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?