A white board is placed 1 meter away from a helium neon laser. When the shutter of the laser is opened, a circular red spot of diameter 2 mm is observed on the white board. If the white board is moved toward the laser so that it is 0.5 meter away from the laser. Choose the diameter of the beam that is expected on the white board. Consider the divergence of the laser beam. (a) 0.5 mm
(b) 1 mm
(c) 2 mm
(d) 4 mm
(e) 8 mm

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

see earlier

im guessing the west of station b

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer