Gravitational waves were first detected directly in 2015. According to models, the source of these gravitational waves was . A. a neutron star supernova
B. the merger of two black holes
C. the supernova of an extremely massive star
D. a white dwarf supernova
E. very powerful x-ray bursts

What statements accurately describe atoms

Idon’t quite understand this problem

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.