The diagrams below show a model airplane. propeller
propeller
rubber
number
hand
before winding
rubber band
after winding
rubber band
Which energy transformation occurs in a rubber band powered model airplane when it is flown?
Thermal energy stored in the rubber band is transformed into chemical energy used by the propeller.
Kinetic energy stored in the rubber band is transformed into thermal energy used by the propeller.
Chemical energy stored in the rubber band is transformed into potential energy used by the propeller.
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Potential energy stored in the rubber band is transformed into mechanical energy used by the propeller.

A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

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.