The motion of a particle executing simple harmonic motion is described by the displacement function, x(t) = A cos(wt + Q) If the initial (t = 0) position of the particle is 1 cm and its initial velocity is c cm/s. Find a) The wave amplitude

and b) The wave initial phase angle "Q"

no sign of dia of fuel cell

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

3. dark matter

empty space could also be a simple vacuum