How should we change the parameters? (answer ""increase"" or ""decrease"" and explain your reason) [12] i. oscillation frequency [1]. reason [2]: ii. string tension [1]. reason [2]: iii. string mass density [1]. reason [2]:

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Positrons are spontaneously emitted from the nuclei of