A wire has a cross-sectional area of 0.10 mm2. If there are 4.0 1028 atoms per cubic meter in this wire, and if each atom contributes 2 free electrons,
what is the drift velocity of the electrons when the current in the wire is 6.0 A? (e = 1.60 10-19 C)
A) 0.0047 m/s B) 0.94 m/s C) 0.019 m/s D) 0.0092 m/s
Question 2
A sand mover at a quarry lifts 2,000 kg of sand per minute a vertical distance of 12 meters. The sand is initially at rest and is discharged at the top of the sand mover with speed 5 m/s into a loading chute.
At what minimum rate must power be supplied to this machine? A) 524 w
B) 3.92 kw
C) 6.65 kw
D) 4.34 kw
E) 1.13 kw
Lake 226 at the Experimental Lakes Area divided in half.
the fatty acid molecules expose the smallest possible hydrophobic surface area
13 Carbon Atoms
How to use right endpoints to find an expression showing the area of a function
Trigonometry, Area Problem
The physician orders pemetrexed (Alimta) 500 mg/m2. The client’s body surface area is 2.14 ...