In world war i, the ottoman empire joined the
a. central powers
c. allied powers
b. central allies
d. axis forces

italy declared war on
a. austria-hungary.
c. russia.
b. germany.
d. both a and
b.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

In the first law of thermodynamics, triangle e=q-w, what does q stand for

How to calculate voltage drop in a series circuit