Chang sees the following formula on a website about
Newton's second law.
What does the symbol EF in the formula indicate that
Chang needs to do?
a-
F
He needs to find the net force acting on the object in a
direction
He needs to use only forces acting in the direction of
motion
He needs to combine the horizontal and vertical forces.
He needs to multiply the horizontal and vertical forces
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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.