Katrina inserts a key into her car’s ignition. She turns the key, putting her car into ignition mode. In this mode, some energy is used to increase the temperature of the car’s fuel. This energy allows the fuel to combust and the car to move. What’s this energy called? A.
absorbed energy
B.
activation energy
C.
chemical energy
D.
released energy
E.
solar energy

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments