The image produced by a convex lens is always real.
Question 2 options:
True
False

What are known as the properties of substances that describe a substance et does not change that substances?

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.

Acid rain is caused by human activity. select the best answer from the choices provided t f