Which is true about the total mechanical energy of a pendulum in the absence of friction?

1. it exhibits constant velocity motion.

2. it exhibits simple harmonic motion.

3. it exhibits circular motion.

4. it exhibits only upward motion.

Using software, a simulation of a javelin being thrown both on earth and on the moon is created. in both cases, the velocity and angle of projection are kept the same. on earth, the javelin covers a distance y. what distance would it cover on the moon? (the moon’s gravity is about 1/6th that of earth.) a. 6y b. 6/y c. y/6 d. (y+6)2

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Should we celebrate the voyages of zheng he mini q answer key