Match the items below with the correct type of supernova.
mss:
wd:

can only occur in a galaxy with ongoing star formation.

can only occur in a binary system.

star explodes completely, leaving no compact object behind.

black hole or neutron star left behind.

spectra always lack strong hydrogen lines.

has a brighter peak luminosity.

can occur in a very old star cluster.

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

J. j. thomson’s experiment disproved the theory that an atom

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.