Predict the velocity vy when y = -3.5 meters. Use the average acceleration you calculated in Activity 1. Use the formula v2 = v02 + 2ay, where v = final velocity, v0 = initial velocity, a = average acceleration, and y = y displacement. (Note that v is the final velocity in the y direction: vy.)

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Name the non metal condut electricity