An object attached to the end of a spring is oscillating up and down. The displacement of the object, y, in centimeters, is a function of the time, t, in seconds and is given by y=2.4cos(t)-.3y = 2.4 cos (t) − .3 . Find the first time it reaches a) .9 centimeters and b) 2.1 centimeters. 2. A rodent population in a particular region varies with the number of predators that inhabit the region. At any time, you could predict the rodent population, r(t), using the function LaTeX: r(t) = 2500 - 1500sin(t)r ( t ) = 2500 − 1500 s i n ( t ). Starting at t = 0, when is the first time that the rodent population will reach 3250?

kjgfcvbjkl

step-by-step explanation:

sdfghjkl; vbnm,

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

30005

yes ok                                            

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v