Using vdd = 1.8 v and a pair of matched mosfets, design the current-source circuit of fig. 8.1 to provide an output current of 150-μanominal value. to simplify matters, assume that the nominal value of the output current is obtained at vo vgs. it is further required that the circuit operate for vo in the range of 0.3 v to vdd and that the change in io over this range be limited to 10% of the nominal value of io. find the required value of r and the device dimensions. for the fabrication-process technology utilized, μncox = 400 μa/v2, v a = 10 v/μm, and vt = 0.5 v.

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?