Assume we have to accommodate 25 million books, each of which has 96 billion characters. if each character can be written using 100atoms, and if the bulk atoms can be used, calculate the size of an object (in nanometers) that can accommodate all the 25 million books. assume one atom occupies a space which is 0.17 nm in size.

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system