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.

Derive the formula 2as=v² -u² where the formula have have usual meanings

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?

Scientists and engineers design new technologies to solve problems. often, a new technological design will contain a flaw. which of the following is true about such a flaw? a. it should be studied so that the design can be fixed or a new design can be proposed. b. it means that the problem being investigated cannot be solved. c. it means that the people who proposed the design should not be scientists or engineers. d. it makes the technological design useless.