Two unknown materials have a coefficient of kinetic friction of 1.3. Without any further information, which of the following options is most likely to be the coefficient of static friction? A. 1.2
B. 1.7
C. -1.3
D. 0

Which branches of natural science include the study of an organism that lived 10 million years ago

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?