False. The surfaces in contact are not moving in relation to each other....static friction between the surfaces.
The force to START and object moving must overcome STATIC friction (which is greater than kinetic friction)
TRUE
Greater force will not REDUCE friction....
Oil Lubricants and small rocks (if acting as a ball bearing might) will REDUCE friction.
y = x+5
Sub this value of y into the second equation:
x+5 = -2x-1 solve for x ====> add 2x to each side
3x + 5 = -1 subtract 5 from each side
3x = -6
x = -2 NOW, sub this into one of the first two equations to find 'y'
y = -2 + 5 = 3
Kinetic and static..... answered yesterday.
15/365 * .26 * 2110 = 22.5452054794520548 ~~ $22.55
Same thing here C-R....substitute the x,y in to the equation to see if they satisfy they eq....NOTE: more than one set may work....
10 x 3/3 + 2/3 = 30/3 + 2/3 = (30+2)/3 = 32/3
False. If you have the equation and the graph of the equation....all of the points will satisfy the equation.
All you have to do is substitute -2 for x and 2 for y in to the equations and see which one 'works' ...try it !
