Un atomo tiene 7 protones y 8 neutrones, mientras que otro presenta Z=7 y A=14 indica: ¿pertenecen al mismo elemento? ¿porque? ¿como se denominan por ello? Plisss aiud :V

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

What is the mass of the same rock on the earth