What is the mechanical advantage of the lever shown below? WEDENOU

0.2 m 0.27 m

A. 1

Ο Ο

B. 2.25

o

C. 0.44

OD. 1.35

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

The air that we breath is made mostly of which gaseous molecule

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