4. During the Western World's dark ages what two cultures continued documenting
observations and making new discoveries?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.