Which leader maintained control of cuba from 1934 to 1959?
a. ramón grau san martín
b. fulgencio batista
c. carlos prio socarras
d. fidel castro

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

What are similarities and differences between refraction, reflection, diffraction and absorption?