10 Which of the following would produce the least power?
A
A mass of 10 kilograms lifted 10 meters in 10 seconds
B.
A mass of 10 kilograms lifted 10 meters in 5 seconds
С
A mass of 5 kilograms lifted 10 meters in 5 seconds
D
A mass of 5 kilograms fted 5 meters in 10 seconds

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?