A199 g oscillator in a vacuum chamber has a frequency of 1.58 hz . when air is admitted, the oscillation decreases to 44.2 % of its initial amplitude in 46.5 s . what is the dampening constant of the oscillation? the answer needs to be in the unit - seconds.

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?