At a nuclear power plant, a steam turbine drives an electrical generator with a mechanical power output of 330 MW. The power input from the nuclear reactor to the steam turbine is 1300 MW. How much power is discarded by the turbine? A 1300 MW
B 970 MW
C 330 MW
D 1630 MW

half of a circle

explanation:

the arrow and the top of the circle is matching together. it is not a polygon because a polygon would always be the same shape. therefore, an half of a circle is called semicircle so you would find the radius of it.

scorpions are,

c.arachnids

  scorpions are animals in the order scorpiones, under the class arachnida, which makes them a distant cousin of spiders

happy to

pls mark as brainliest.

a and b sometimes have a positive value

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this