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.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

An object in mechanical equilibrium is an object