Jim is playing with a 1-meter-long pendulum that is hooked
2 meters above the ground. he lifts the pendulum's bob to a height of 2 meters above the ground and then releases it. potential energy is assigned zero value at the ground level. which statement is true about this problem?
a. at the lowest position of the bob, the ke is equal to zero.
b. at the highest position of bob, pe is equal to zero.
c. at the highest position of the bob, the ke is equal to zero.
d. at all the positions except the highest positions the pe is zero.

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.