A lamp is on a dimmer switch. As you turn the switch from the lowest setting to the highest setting, which statement would best describe what happens?
A)
B)
The light bulb consumes less electricity, burns dimmer and uses more
power.
The light bulb consumes more electricity, burns brighter and uses more
power.
The light bulb consumes less electricity, bums brighter and uses more
power
The light bulb consumes more electricity, burns brighter and uses less
power.
c)
D)

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

It is really hard for me right know

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.