All of these are examples of chemical reactions except
a. bleach spilled on a shirt turning it from red to pink
b. flowers wilting and turning from white to brown
c. the heating element on a stove turning from black to orange

The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ? t ? 8. (a) when is the position function decreasing? (round you

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?