A pen is thrown downward with an initial speed of 3.0 m/s from a tall building. After 4.0 seconds what is the pens velocity?

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

answer(20) psi;